1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (c) 2012 Samsung Electronics Co., Ltd.
6 * http://www.samsung.com/
9 #include <linux/f2fs_fs.h>
10 #include <linux/stat.h>
11 #include <linux/buffer_head.h>
12 #include <linux/writeback.h>
13 #include <linux/blkdev.h>
14 #include <linux/falloc.h>
15 #include <linux/types.h>
16 #include <linux/compat.h>
17 #include <linux/uaccess.h>
18 #include <linux/mount.h>
19 #include <linux/pagevec.h>
20 #include <linux/uio.h>
21 #include <linux/uuid.h>
22 #include <linux/file.h>
23 #include <linux/nls.h>
32 #include <trace/events/f2fs.h>
34 static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
36 struct inode *inode = file_inode(vmf->vma->vm_file);
39 down_read(&F2FS_I(inode)->i_mmap_sem);
40 ret = filemap_fault(vmf);
41 up_read(&F2FS_I(inode)->i_mmap_sem);
43 trace_f2fs_filemap_fault(inode, vmf->pgoff, (unsigned long)ret);
48 static vm_fault_t f2fs_vm_page_mkwrite(struct vm_fault *vmf)
50 struct page *page = vmf->page;
51 struct inode *inode = file_inode(vmf->vma->vm_file);
52 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
53 struct dnode_of_data dn;
54 bool need_alloc = true;
57 if (unlikely(f2fs_cp_error(sbi))) {
62 if (!f2fs_is_checkpoint_ready(sbi)) {
67 #ifdef CONFIG_F2FS_FS_COMPRESSION
68 if (f2fs_compressed_file(inode)) {
69 int ret = f2fs_is_compressed_cluster(inode, page->index);
75 if (ret < F2FS_I(inode)->i_cluster_size) {
83 /* should do out of any locked page */
85 f2fs_balance_fs(sbi, true);
87 sb_start_pagefault(inode->i_sb);
89 f2fs_bug_on(sbi, f2fs_has_inline_data(inode));
91 file_update_time(vmf->vma->vm_file);
92 down_read(&F2FS_I(inode)->i_mmap_sem);
94 if (unlikely(page->mapping != inode->i_mapping ||
95 page_offset(page) > i_size_read(inode) ||
96 !PageUptodate(page))) {
103 /* block allocation */
104 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, true);
105 set_new_dnode(&dn, inode, NULL, NULL, 0);
106 err = f2fs_get_block(&dn, page->index);
108 __do_map_lock(sbi, F2FS_GET_BLOCK_PRE_AIO, false);
116 f2fs_wait_on_page_writeback(page, DATA, false, true);
118 /* wait for GCed page writeback via META_MAPPING */
119 f2fs_wait_on_block_writeback(inode, dn.data_blkaddr);
122 * check to see if the page is mapped already (no holes)
124 if (PageMappedToDisk(page))
127 /* page is wholly or partially inside EOF */
128 if (((loff_t)(page->index + 1) << PAGE_SHIFT) >
129 i_size_read(inode)) {
132 offset = i_size_read(inode) & ~PAGE_MASK;
133 zero_user_segment(page, offset, PAGE_SIZE);
135 set_page_dirty(page);
136 if (!PageUptodate(page))
137 SetPageUptodate(page);
139 f2fs_update_iostat(sbi, APP_MAPPED_IO, F2FS_BLKSIZE);
140 f2fs_update_time(sbi, REQ_TIME);
142 trace_f2fs_vm_page_mkwrite(page, DATA);
144 up_read(&F2FS_I(inode)->i_mmap_sem);
146 sb_end_pagefault(inode->i_sb);
148 return block_page_mkwrite_return(err);
151 static const struct vm_operations_struct f2fs_file_vm_ops = {
152 .fault = f2fs_filemap_fault,
153 .map_pages = filemap_map_pages,
154 .page_mkwrite = f2fs_vm_page_mkwrite,
157 static int get_parent_ino(struct inode *inode, nid_t *pino)
159 struct dentry *dentry;
161 inode = igrab(inode);
162 dentry = d_find_any_alias(inode);
167 *pino = parent_ino(dentry);
172 static inline enum cp_reason_type need_do_checkpoint(struct inode *inode)
174 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
175 enum cp_reason_type cp_reason = CP_NO_NEEDED;
177 if (!S_ISREG(inode->i_mode))
178 cp_reason = CP_NON_REGULAR;
179 else if (f2fs_compressed_file(inode))
180 cp_reason = CP_COMPRESSED;
181 else if (inode->i_nlink != 1)
182 cp_reason = CP_HARDLINK;
183 else if (is_sbi_flag_set(sbi, SBI_NEED_CP))
184 cp_reason = CP_SB_NEED_CP;
185 else if (file_wrong_pino(inode))
186 cp_reason = CP_WRONG_PINO;
187 else if (!f2fs_space_for_roll_forward(sbi))
188 cp_reason = CP_NO_SPC_ROLL;
189 else if (!f2fs_is_checkpointed_node(sbi, F2FS_I(inode)->i_pino))
190 cp_reason = CP_NODE_NEED_CP;
191 else if (test_opt(sbi, FASTBOOT))
192 cp_reason = CP_FASTBOOT_MODE;
193 else if (F2FS_OPTION(sbi).active_logs == 2)
194 cp_reason = CP_SPEC_LOG_NUM;
195 else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT &&
196 f2fs_need_dentry_mark(sbi, inode->i_ino) &&
197 f2fs_exist_written_data(sbi, F2FS_I(inode)->i_pino,
199 cp_reason = CP_RECOVER_DIR;
204 static bool need_inode_page_update(struct f2fs_sb_info *sbi, nid_t ino)
206 struct page *i = find_get_page(NODE_MAPPING(sbi), ino);
208 /* But we need to avoid that there are some inode updates */
209 if ((i && PageDirty(i)) || f2fs_need_inode_block_update(sbi, ino))
215 static void try_to_fix_pino(struct inode *inode)
217 struct f2fs_inode_info *fi = F2FS_I(inode);
220 down_write(&fi->i_sem);
221 if (file_wrong_pino(inode) && inode->i_nlink == 1 &&
222 get_parent_ino(inode, &pino)) {
223 f2fs_i_pino_write(inode, pino);
224 file_got_pino(inode);
226 up_write(&fi->i_sem);
229 static int f2fs_do_sync_file(struct file *file, loff_t start, loff_t end,
230 int datasync, bool atomic)
232 struct inode *inode = file->f_mapping->host;
233 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
234 nid_t ino = inode->i_ino;
236 enum cp_reason_type cp_reason = 0;
237 struct writeback_control wbc = {
238 .sync_mode = WB_SYNC_ALL,
239 .nr_to_write = LONG_MAX,
242 unsigned int seq_id = 0;
244 if (unlikely(f2fs_readonly(inode->i_sb) ||
245 is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
248 trace_f2fs_sync_file_enter(inode);
250 if (S_ISDIR(inode->i_mode))
253 /* if fdatasync is triggered, let's do in-place-update */
254 if (datasync || get_dirty_pages(inode) <= SM_I(sbi)->min_fsync_blocks)
255 set_inode_flag(inode, FI_NEED_IPU);
256 ret = file_write_and_wait_range(file, start, end);
257 clear_inode_flag(inode, FI_NEED_IPU);
260 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
264 /* if the inode is dirty, let's recover all the time */
265 if (!f2fs_skip_inode_update(inode, datasync)) {
266 f2fs_write_inode(inode, NULL);
271 * if there is no written data, don't waste time to write recovery info.
273 if (!is_inode_flag_set(inode, FI_APPEND_WRITE) &&
274 !f2fs_exist_written_data(sbi, ino, APPEND_INO)) {
276 /* it may call write_inode just prior to fsync */
277 if (need_inode_page_update(sbi, ino))
280 if (is_inode_flag_set(inode, FI_UPDATE_WRITE) ||
281 f2fs_exist_written_data(sbi, ino, UPDATE_INO))
287 * Both of fdatasync() and fsync() are able to be recovered from
290 down_read(&F2FS_I(inode)->i_sem);
291 cp_reason = need_do_checkpoint(inode);
292 up_read(&F2FS_I(inode)->i_sem);
295 /* all the dirty node pages should be flushed for POR */
296 ret = f2fs_sync_fs(inode->i_sb, 1);
299 * We've secured consistency through sync_fs. Following pino
300 * will be used only for fsynced inodes after checkpoint.
302 try_to_fix_pino(inode);
303 clear_inode_flag(inode, FI_APPEND_WRITE);
304 clear_inode_flag(inode, FI_UPDATE_WRITE);
308 atomic_inc(&sbi->wb_sync_req[NODE]);
309 ret = f2fs_fsync_node_pages(sbi, inode, &wbc, atomic, &seq_id);
310 atomic_dec(&sbi->wb_sync_req[NODE]);
314 /* if cp_error was enabled, we should avoid infinite loop */
315 if (unlikely(f2fs_cp_error(sbi))) {
320 if (f2fs_need_inode_block_update(sbi, ino)) {
321 f2fs_mark_inode_dirty_sync(inode, true);
322 f2fs_write_inode(inode, NULL);
327 * If it's atomic_write, it's just fine to keep write ordering. So
328 * here we don't need to wait for node write completion, since we use
329 * node chain which serializes node blocks. If one of node writes are
330 * reordered, we can see simply broken chain, resulting in stopping
331 * roll-forward recovery. It means we'll recover all or none node blocks
335 ret = f2fs_wait_on_node_pages_writeback(sbi, seq_id);
340 /* once recovery info is written, don't need to tack this */
341 f2fs_remove_ino_entry(sbi, ino, APPEND_INO);
342 clear_inode_flag(inode, FI_APPEND_WRITE);
344 if (!atomic && F2FS_OPTION(sbi).fsync_mode != FSYNC_MODE_NOBARRIER)
345 ret = f2fs_issue_flush(sbi, inode->i_ino);
347 f2fs_remove_ino_entry(sbi, ino, UPDATE_INO);
348 clear_inode_flag(inode, FI_UPDATE_WRITE);
349 f2fs_remove_ino_entry(sbi, ino, FLUSH_INO);
351 f2fs_update_time(sbi, REQ_TIME);
353 trace_f2fs_sync_file_exit(inode, cp_reason, datasync, ret);
354 f2fs_trace_ios(NULL, 1);
358 int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
360 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(file)))))
362 return f2fs_do_sync_file(file, start, end, datasync, false);
365 static pgoff_t __get_first_dirty_index(struct address_space *mapping,
366 pgoff_t pgofs, int whence)
371 if (whence != SEEK_DATA)
374 /* find first dirty page index */
375 nr_pages = find_get_pages_tag(mapping, &pgofs, PAGECACHE_TAG_DIRTY,
384 static bool __found_offset(struct f2fs_sb_info *sbi, block_t blkaddr,
385 pgoff_t dirty, pgoff_t pgofs, int whence)
389 if ((blkaddr == NEW_ADDR && dirty == pgofs) ||
390 __is_valid_data_blkaddr(blkaddr))
394 if (blkaddr == NULL_ADDR)
401 static loff_t f2fs_seek_block(struct file *file, loff_t offset, int whence)
403 struct inode *inode = file->f_mapping->host;
404 loff_t maxbytes = inode->i_sb->s_maxbytes;
405 struct dnode_of_data dn;
406 pgoff_t pgofs, end_offset, dirty;
407 loff_t data_ofs = offset;
413 isize = i_size_read(inode);
417 /* handle inline data case */
418 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode)) {
419 if (whence == SEEK_HOLE)
424 pgofs = (pgoff_t)(offset >> PAGE_SHIFT);
426 dirty = __get_first_dirty_index(inode->i_mapping, pgofs, whence);
428 for (; data_ofs < isize; data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
429 set_new_dnode(&dn, inode, NULL, NULL, 0);
430 err = f2fs_get_dnode_of_data(&dn, pgofs, LOOKUP_NODE);
431 if (err && err != -ENOENT) {
433 } else if (err == -ENOENT) {
434 /* direct node does not exists */
435 if (whence == SEEK_DATA) {
436 pgofs = f2fs_get_next_page_offset(&dn, pgofs);
443 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
445 /* find data/hole in dnode block */
446 for (; dn.ofs_in_node < end_offset;
447 dn.ofs_in_node++, pgofs++,
448 data_ofs = (loff_t)pgofs << PAGE_SHIFT) {
451 blkaddr = datablock_addr(dn.inode,
452 dn.node_page, dn.ofs_in_node);
454 if (__is_valid_data_blkaddr(blkaddr) &&
455 !f2fs_is_valid_blkaddr(F2FS_I_SB(inode),
456 blkaddr, DATA_GENERIC_ENHANCE)) {
461 if (__found_offset(F2FS_I_SB(inode), blkaddr, dirty,
470 if (whence == SEEK_DATA)
473 if (whence == SEEK_HOLE && data_ofs > isize)
476 return vfs_setpos(file, data_ofs, maxbytes);
482 static loff_t f2fs_llseek(struct file *file, loff_t offset, int whence)
484 struct inode *inode = file->f_mapping->host;
485 loff_t maxbytes = inode->i_sb->s_maxbytes;
491 return generic_file_llseek_size(file, offset, whence,
492 maxbytes, i_size_read(inode));
497 return f2fs_seek_block(file, offset, whence);
503 static int f2fs_file_mmap(struct file *file, struct vm_area_struct *vma)
505 struct inode *inode = file_inode(file);
508 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
511 if (!f2fs_is_compress_backend_ready(inode))
514 /* we don't need to use inline_data strictly */
515 err = f2fs_convert_inline_inode(inode);
520 vma->vm_ops = &f2fs_file_vm_ops;
521 set_inode_flag(inode, FI_MMAP_FILE);
525 static int f2fs_file_open(struct inode *inode, struct file *filp)
527 int err = fscrypt_file_open(inode, filp);
532 if (!f2fs_is_compress_backend_ready(inode))
535 err = fsverity_file_open(inode, filp);
539 filp->f_mode |= FMODE_NOWAIT;
541 return dquot_file_open(inode, filp);
544 void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
546 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
547 struct f2fs_node *raw_node;
548 int nr_free = 0, ofs = dn->ofs_in_node, len = count;
551 bool compressed_cluster = false;
552 int cluster_index = 0, valid_blocks = 0;
553 int cluster_size = F2FS_I(dn->inode)->i_cluster_size;
555 if (IS_INODE(dn->node_page) && f2fs_has_extra_attr(dn->inode))
556 base = get_extra_isize(dn->inode);
558 raw_node = F2FS_NODE(dn->node_page);
559 addr = blkaddr_in_node(raw_node) + base + ofs;
561 /* Assumption: truncateion starts with cluster */
562 for (; count > 0; count--, addr++, dn->ofs_in_node++, cluster_index++) {
563 block_t blkaddr = le32_to_cpu(*addr);
565 if (f2fs_compressed_file(dn->inode) &&
566 !(cluster_index & (cluster_size - 1))) {
567 if (compressed_cluster)
568 f2fs_i_compr_blocks_update(dn->inode,
569 valid_blocks, false);
570 compressed_cluster = (blkaddr == COMPRESS_ADDR);
574 if (blkaddr == NULL_ADDR)
577 dn->data_blkaddr = NULL_ADDR;
578 f2fs_set_data_blkaddr(dn);
580 if (__is_valid_data_blkaddr(blkaddr)) {
581 if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
582 DATA_GENERIC_ENHANCE))
584 if (compressed_cluster)
588 if (dn->ofs_in_node == 0 && IS_INODE(dn->node_page))
589 clear_inode_flag(dn->inode, FI_FIRST_BLOCK_WRITTEN);
591 f2fs_invalidate_blocks(sbi, blkaddr);
595 if (compressed_cluster)
596 f2fs_i_compr_blocks_update(dn->inode, valid_blocks, false);
601 * once we invalidate valid blkaddr in range [ofs, ofs + count],
602 * we will invalidate all blkaddr in the whole range.
604 fofs = f2fs_start_bidx_of_node(ofs_of_node(dn->node_page),
606 f2fs_update_extent_cache_range(dn, fofs, 0, len);
607 dec_valid_block_count(sbi, dn->inode, nr_free);
609 dn->ofs_in_node = ofs;
611 f2fs_update_time(sbi, REQ_TIME);
612 trace_f2fs_truncate_data_blocks_range(dn->inode, dn->nid,
613 dn->ofs_in_node, nr_free);
616 void f2fs_truncate_data_blocks(struct dnode_of_data *dn)
618 f2fs_truncate_data_blocks_range(dn, ADDRS_PER_BLOCK(dn->inode));
621 static int truncate_partial_data_page(struct inode *inode, u64 from,
624 loff_t offset = from & (PAGE_SIZE - 1);
625 pgoff_t index = from >> PAGE_SHIFT;
626 struct address_space *mapping = inode->i_mapping;
629 if (!offset && !cache_only)
633 page = find_lock_page(mapping, index);
634 if (page && PageUptodate(page))
636 f2fs_put_page(page, 1);
640 if (f2fs_compressed_file(inode))
643 page = f2fs_get_lock_data_page(inode, index, true);
645 return PTR_ERR(page) == -ENOENT ? 0 : PTR_ERR(page);
647 f2fs_wait_on_page_writeback(page, DATA, true, true);
648 zero_user(page, offset, PAGE_SIZE - offset);
650 /* An encrypted inode should have a key and truncate the last page. */
651 f2fs_bug_on(F2FS_I_SB(inode), cache_only && IS_ENCRYPTED(inode));
653 set_page_dirty(page);
654 f2fs_put_page(page, 1);
658 static int do_truncate_blocks(struct inode *inode, u64 from, bool lock)
660 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
661 struct dnode_of_data dn;
663 int count = 0, err = 0;
665 bool truncate_page = false;
667 trace_f2fs_truncate_blocks_enter(inode, from);
669 free_from = (pgoff_t)F2FS_BLK_ALIGN(from);
671 if (free_from >= sbi->max_file_blocks)
677 ipage = f2fs_get_node_page(sbi, inode->i_ino);
679 err = PTR_ERR(ipage);
683 if (f2fs_has_inline_data(inode)) {
684 f2fs_truncate_inline_inode(inode, ipage, from);
685 f2fs_put_page(ipage, 1);
686 truncate_page = true;
690 set_new_dnode(&dn, inode, ipage, NULL, 0);
691 err = f2fs_get_dnode_of_data(&dn, free_from, LOOKUP_NODE_RA);
698 count = ADDRS_PER_PAGE(dn.node_page, inode);
700 count -= dn.ofs_in_node;
701 f2fs_bug_on(sbi, count < 0);
703 if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
704 f2fs_truncate_data_blocks_range(&dn, count);
710 err = f2fs_truncate_inode_blocks(inode, free_from);
715 /* lastly zero out the first data page */
717 err = truncate_partial_data_page(inode, from, truncate_page);
719 trace_f2fs_truncate_blocks_exit(inode, err);
723 int f2fs_truncate_blocks(struct inode *inode, u64 from, bool lock)
725 u64 free_from = from;
728 * for compressed file, only support cluster size
729 * aligned truncation.
731 if (f2fs_compressed_file(inode)) {
732 size_t cluster_shift = PAGE_SHIFT +
733 F2FS_I(inode)->i_log_cluster_size;
734 size_t cluster_mask = (1 << cluster_shift) - 1;
736 free_from = from >> cluster_shift;
737 if (from & cluster_mask)
739 free_from <<= cluster_shift;
742 return do_truncate_blocks(inode, free_from, lock);
745 int f2fs_truncate(struct inode *inode)
749 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
752 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
753 S_ISLNK(inode->i_mode)))
756 trace_f2fs_truncate(inode);
758 if (time_to_inject(F2FS_I_SB(inode), FAULT_TRUNCATE)) {
759 f2fs_show_injection_info(F2FS_I_SB(inode), FAULT_TRUNCATE);
763 /* we should check inline_data size */
764 if (!f2fs_may_inline_data(inode)) {
765 err = f2fs_convert_inline_inode(inode);
770 err = f2fs_truncate_blocks(inode, i_size_read(inode), true);
774 inode->i_mtime = inode->i_ctime = current_time(inode);
775 f2fs_mark_inode_dirty_sync(inode, false);
779 int f2fs_getattr(const struct path *path, struct kstat *stat,
780 u32 request_mask, unsigned int query_flags)
782 struct inode *inode = d_inode(path->dentry);
783 struct f2fs_inode_info *fi = F2FS_I(inode);
784 struct f2fs_inode *ri;
787 if (f2fs_has_extra_attr(inode) &&
788 f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
789 F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
790 stat->result_mask |= STATX_BTIME;
791 stat->btime.tv_sec = fi->i_crtime.tv_sec;
792 stat->btime.tv_nsec = fi->i_crtime.tv_nsec;
796 if (flags & F2FS_APPEND_FL)
797 stat->attributes |= STATX_ATTR_APPEND;
798 if (IS_ENCRYPTED(inode))
799 stat->attributes |= STATX_ATTR_ENCRYPTED;
800 if (flags & F2FS_IMMUTABLE_FL)
801 stat->attributes |= STATX_ATTR_IMMUTABLE;
802 if (flags & F2FS_NODUMP_FL)
803 stat->attributes |= STATX_ATTR_NODUMP;
804 if (IS_VERITY(inode))
805 stat->attributes |= STATX_ATTR_VERITY;
807 stat->attributes_mask |= (STATX_ATTR_APPEND |
808 STATX_ATTR_ENCRYPTED |
809 STATX_ATTR_IMMUTABLE |
813 generic_fillattr(inode, stat);
815 /* we need to show initial sectors used for inline_data/dentries */
816 if ((S_ISREG(inode->i_mode) && f2fs_has_inline_data(inode)) ||
817 f2fs_has_inline_dentry(inode))
818 stat->blocks += (stat->size + 511) >> 9;
823 #ifdef CONFIG_F2FS_FS_POSIX_ACL
824 static void __setattr_copy(struct inode *inode, const struct iattr *attr)
826 unsigned int ia_valid = attr->ia_valid;
828 if (ia_valid & ATTR_UID)
829 inode->i_uid = attr->ia_uid;
830 if (ia_valid & ATTR_GID)
831 inode->i_gid = attr->ia_gid;
832 if (ia_valid & ATTR_ATIME)
833 inode->i_atime = attr->ia_atime;
834 if (ia_valid & ATTR_MTIME)
835 inode->i_mtime = attr->ia_mtime;
836 if (ia_valid & ATTR_CTIME)
837 inode->i_ctime = attr->ia_ctime;
838 if (ia_valid & ATTR_MODE) {
839 umode_t mode = attr->ia_mode;
841 if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
843 set_acl_inode(inode, mode);
847 #define __setattr_copy setattr_copy
850 int f2fs_setattr(struct dentry *dentry, struct iattr *attr)
852 struct inode *inode = d_inode(dentry);
855 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
858 if ((attr->ia_valid & ATTR_SIZE) &&
859 !f2fs_is_compress_backend_ready(inode))
862 err = setattr_prepare(dentry, attr);
866 err = fscrypt_prepare_setattr(dentry, attr);
870 err = fsverity_prepare_setattr(dentry, attr);
874 if (is_quota_modification(inode, attr)) {
875 err = dquot_initialize(inode);
879 if ((attr->ia_valid & ATTR_UID &&
880 !uid_eq(attr->ia_uid, inode->i_uid)) ||
881 (attr->ia_valid & ATTR_GID &&
882 !gid_eq(attr->ia_gid, inode->i_gid))) {
883 f2fs_lock_op(F2FS_I_SB(inode));
884 err = dquot_transfer(inode, attr);
886 set_sbi_flag(F2FS_I_SB(inode),
887 SBI_QUOTA_NEED_REPAIR);
888 f2fs_unlock_op(F2FS_I_SB(inode));
892 * update uid/gid under lock_op(), so that dquot and inode can
893 * be updated atomically.
895 if (attr->ia_valid & ATTR_UID)
896 inode->i_uid = attr->ia_uid;
897 if (attr->ia_valid & ATTR_GID)
898 inode->i_gid = attr->ia_gid;
899 f2fs_mark_inode_dirty_sync(inode, true);
900 f2fs_unlock_op(F2FS_I_SB(inode));
903 if (attr->ia_valid & ATTR_SIZE) {
904 loff_t old_size = i_size_read(inode);
906 if (attr->ia_size > MAX_INLINE_DATA(inode)) {
908 * should convert inline inode before i_size_write to
909 * keep smaller than inline_data size with inline flag.
911 err = f2fs_convert_inline_inode(inode);
916 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
917 down_write(&F2FS_I(inode)->i_mmap_sem);
919 truncate_setsize(inode, attr->ia_size);
921 if (attr->ia_size <= old_size)
922 err = f2fs_truncate(inode);
924 * do not trim all blocks after i_size if target size is
925 * larger than i_size.
927 up_write(&F2FS_I(inode)->i_mmap_sem);
928 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
932 down_write(&F2FS_I(inode)->i_sem);
933 inode->i_mtime = inode->i_ctime = current_time(inode);
934 F2FS_I(inode)->last_disk_size = i_size_read(inode);
935 up_write(&F2FS_I(inode)->i_sem);
938 __setattr_copy(inode, attr);
940 if (attr->ia_valid & ATTR_MODE) {
941 err = posix_acl_chmod(inode, f2fs_get_inode_mode(inode));
942 if (err || is_inode_flag_set(inode, FI_ACL_MODE)) {
943 inode->i_mode = F2FS_I(inode)->i_acl_mode;
944 clear_inode_flag(inode, FI_ACL_MODE);
948 /* file size may changed here */
949 f2fs_mark_inode_dirty_sync(inode, true);
951 /* inode change will produce dirty node pages flushed by checkpoint */
952 f2fs_balance_fs(F2FS_I_SB(inode), true);
957 const struct inode_operations f2fs_file_inode_operations = {
958 .getattr = f2fs_getattr,
959 .setattr = f2fs_setattr,
960 .get_acl = f2fs_get_acl,
961 .set_acl = f2fs_set_acl,
962 #ifdef CONFIG_F2FS_FS_XATTR
963 .listxattr = f2fs_listxattr,
965 .fiemap = f2fs_fiemap,
968 static int fill_zero(struct inode *inode, pgoff_t index,
969 loff_t start, loff_t len)
971 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
977 f2fs_balance_fs(sbi, true);
980 page = f2fs_get_new_data_page(inode, NULL, index, false);
984 return PTR_ERR(page);
986 f2fs_wait_on_page_writeback(page, DATA, true, true);
987 zero_user(page, start, len);
988 set_page_dirty(page);
989 f2fs_put_page(page, 1);
993 int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end)
997 while (pg_start < pg_end) {
998 struct dnode_of_data dn;
999 pgoff_t end_offset, count;
1001 set_new_dnode(&dn, inode, NULL, NULL, 0);
1002 err = f2fs_get_dnode_of_data(&dn, pg_start, LOOKUP_NODE);
1004 if (err == -ENOENT) {
1005 pg_start = f2fs_get_next_page_offset(&dn,
1012 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1013 count = min(end_offset - dn.ofs_in_node, pg_end - pg_start);
1015 f2fs_bug_on(F2FS_I_SB(inode), count == 0 || count > end_offset);
1017 f2fs_truncate_data_blocks_range(&dn, count);
1018 f2fs_put_dnode(&dn);
1025 static int punch_hole(struct inode *inode, loff_t offset, loff_t len)
1027 pgoff_t pg_start, pg_end;
1028 loff_t off_start, off_end;
1031 ret = f2fs_convert_inline_inode(inode);
1035 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1036 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1038 off_start = offset & (PAGE_SIZE - 1);
1039 off_end = (offset + len) & (PAGE_SIZE - 1);
1041 if (pg_start == pg_end) {
1042 ret = fill_zero(inode, pg_start, off_start,
1043 off_end - off_start);
1048 ret = fill_zero(inode, pg_start++, off_start,
1049 PAGE_SIZE - off_start);
1054 ret = fill_zero(inode, pg_end, 0, off_end);
1059 if (pg_start < pg_end) {
1060 struct address_space *mapping = inode->i_mapping;
1061 loff_t blk_start, blk_end;
1062 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1064 f2fs_balance_fs(sbi, true);
1066 blk_start = (loff_t)pg_start << PAGE_SHIFT;
1067 blk_end = (loff_t)pg_end << PAGE_SHIFT;
1069 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1070 down_write(&F2FS_I(inode)->i_mmap_sem);
1072 truncate_inode_pages_range(mapping, blk_start,
1076 ret = f2fs_truncate_hole(inode, pg_start, pg_end);
1077 f2fs_unlock_op(sbi);
1079 up_write(&F2FS_I(inode)->i_mmap_sem);
1080 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1087 static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
1088 int *do_replace, pgoff_t off, pgoff_t len)
1090 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1091 struct dnode_of_data dn;
1095 set_new_dnode(&dn, inode, NULL, NULL, 0);
1096 ret = f2fs_get_dnode_of_data(&dn, off, LOOKUP_NODE_RA);
1097 if (ret && ret != -ENOENT) {
1099 } else if (ret == -ENOENT) {
1100 if (dn.max_level == 0)
1102 done = min((pgoff_t)ADDRS_PER_BLOCK(inode) -
1103 dn.ofs_in_node, len);
1109 done = min((pgoff_t)ADDRS_PER_PAGE(dn.node_page, inode) -
1110 dn.ofs_in_node, len);
1111 for (i = 0; i < done; i++, blkaddr++, do_replace++, dn.ofs_in_node++) {
1112 *blkaddr = datablock_addr(dn.inode,
1113 dn.node_page, dn.ofs_in_node);
1115 if (__is_valid_data_blkaddr(*blkaddr) &&
1116 !f2fs_is_valid_blkaddr(sbi, *blkaddr,
1117 DATA_GENERIC_ENHANCE)) {
1118 f2fs_put_dnode(&dn);
1119 return -EFSCORRUPTED;
1122 if (!f2fs_is_checkpointed_data(sbi, *blkaddr)) {
1124 if (test_opt(sbi, LFS)) {
1125 f2fs_put_dnode(&dn);
1129 /* do not invalidate this block address */
1130 f2fs_update_data_blkaddr(&dn, NULL_ADDR);
1134 f2fs_put_dnode(&dn);
1143 static int __roll_back_blkaddrs(struct inode *inode, block_t *blkaddr,
1144 int *do_replace, pgoff_t off, int len)
1146 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1147 struct dnode_of_data dn;
1150 for (i = 0; i < len; i++, do_replace++, blkaddr++) {
1151 if (*do_replace == 0)
1154 set_new_dnode(&dn, inode, NULL, NULL, 0);
1155 ret = f2fs_get_dnode_of_data(&dn, off + i, LOOKUP_NODE_RA);
1157 dec_valid_block_count(sbi, inode, 1);
1158 f2fs_invalidate_blocks(sbi, *blkaddr);
1160 f2fs_update_data_blkaddr(&dn, *blkaddr);
1162 f2fs_put_dnode(&dn);
1167 static int __clone_blkaddrs(struct inode *src_inode, struct inode *dst_inode,
1168 block_t *blkaddr, int *do_replace,
1169 pgoff_t src, pgoff_t dst, pgoff_t len, bool full)
1171 struct f2fs_sb_info *sbi = F2FS_I_SB(src_inode);
1176 if (blkaddr[i] == NULL_ADDR && !full) {
1181 if (do_replace[i] || blkaddr[i] == NULL_ADDR) {
1182 struct dnode_of_data dn;
1183 struct node_info ni;
1187 set_new_dnode(&dn, dst_inode, NULL, NULL, 0);
1188 ret = f2fs_get_dnode_of_data(&dn, dst + i, ALLOC_NODE);
1192 ret = f2fs_get_node_info(sbi, dn.nid, &ni);
1194 f2fs_put_dnode(&dn);
1198 ilen = min((pgoff_t)
1199 ADDRS_PER_PAGE(dn.node_page, dst_inode) -
1200 dn.ofs_in_node, len - i);
1202 dn.data_blkaddr = datablock_addr(dn.inode,
1203 dn.node_page, dn.ofs_in_node);
1204 f2fs_truncate_data_blocks_range(&dn, 1);
1206 if (do_replace[i]) {
1207 f2fs_i_blocks_write(src_inode,
1209 f2fs_i_blocks_write(dst_inode,
1211 f2fs_replace_block(sbi, &dn, dn.data_blkaddr,
1212 blkaddr[i], ni.version, true, false);
1218 new_size = (loff_t)(dst + i) << PAGE_SHIFT;
1219 if (dst_inode->i_size < new_size)
1220 f2fs_i_size_write(dst_inode, new_size);
1221 } while (--ilen && (do_replace[i] || blkaddr[i] == NULL_ADDR));
1223 f2fs_put_dnode(&dn);
1225 struct page *psrc, *pdst;
1227 psrc = f2fs_get_lock_data_page(src_inode,
1230 return PTR_ERR(psrc);
1231 pdst = f2fs_get_new_data_page(dst_inode, NULL, dst + i,
1234 f2fs_put_page(psrc, 1);
1235 return PTR_ERR(pdst);
1237 f2fs_copy_page(psrc, pdst);
1238 set_page_dirty(pdst);
1239 f2fs_put_page(pdst, 1);
1240 f2fs_put_page(psrc, 1);
1242 ret = f2fs_truncate_hole(src_inode,
1243 src + i, src + i + 1);
1252 static int __exchange_data_block(struct inode *src_inode,
1253 struct inode *dst_inode, pgoff_t src, pgoff_t dst,
1254 pgoff_t len, bool full)
1256 block_t *src_blkaddr;
1262 olen = min((pgoff_t)4 * ADDRS_PER_BLOCK(src_inode), len);
1264 src_blkaddr = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1265 array_size(olen, sizeof(block_t)),
1270 do_replace = f2fs_kvzalloc(F2FS_I_SB(src_inode),
1271 array_size(olen, sizeof(int)),
1274 kvfree(src_blkaddr);
1278 ret = __read_out_blkaddrs(src_inode, src_blkaddr,
1279 do_replace, src, olen);
1283 ret = __clone_blkaddrs(src_inode, dst_inode, src_blkaddr,
1284 do_replace, src, dst, olen, full);
1292 kvfree(src_blkaddr);
1298 __roll_back_blkaddrs(src_inode, src_blkaddr, do_replace, src, olen);
1299 kvfree(src_blkaddr);
1304 static int f2fs_do_collapse(struct inode *inode, loff_t offset, loff_t len)
1306 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1307 pgoff_t nrpages = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1308 pgoff_t start = offset >> PAGE_SHIFT;
1309 pgoff_t end = (offset + len) >> PAGE_SHIFT;
1312 f2fs_balance_fs(sbi, true);
1314 /* avoid gc operation during block exchange */
1315 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1316 down_write(&F2FS_I(inode)->i_mmap_sem);
1319 f2fs_drop_extent_tree(inode);
1320 truncate_pagecache(inode, offset);
1321 ret = __exchange_data_block(inode, inode, end, start, nrpages - end, true);
1322 f2fs_unlock_op(sbi);
1324 up_write(&F2FS_I(inode)->i_mmap_sem);
1325 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1329 static int f2fs_collapse_range(struct inode *inode, loff_t offset, loff_t len)
1334 if (offset + len >= i_size_read(inode))
1337 /* collapse range should be aligned to block size of f2fs. */
1338 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1341 ret = f2fs_convert_inline_inode(inode);
1345 /* write out all dirty pages from offset */
1346 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1350 ret = f2fs_do_collapse(inode, offset, len);
1354 /* write out all moved pages, if possible */
1355 down_write(&F2FS_I(inode)->i_mmap_sem);
1356 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1357 truncate_pagecache(inode, offset);
1359 new_size = i_size_read(inode) - len;
1360 truncate_pagecache(inode, new_size);
1362 ret = f2fs_truncate_blocks(inode, new_size, true);
1363 up_write(&F2FS_I(inode)->i_mmap_sem);
1365 f2fs_i_size_write(inode, new_size);
1369 static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
1372 struct f2fs_sb_info *sbi = F2FS_I_SB(dn->inode);
1373 pgoff_t index = start;
1374 unsigned int ofs_in_node = dn->ofs_in_node;
1378 for (; index < end; index++, dn->ofs_in_node++) {
1379 if (datablock_addr(dn->inode, dn->node_page,
1380 dn->ofs_in_node) == NULL_ADDR)
1384 dn->ofs_in_node = ofs_in_node;
1385 ret = f2fs_reserve_new_blocks(dn, count);
1389 dn->ofs_in_node = ofs_in_node;
1390 for (index = start; index < end; index++, dn->ofs_in_node++) {
1391 dn->data_blkaddr = datablock_addr(dn->inode,
1392 dn->node_page, dn->ofs_in_node);
1394 * f2fs_reserve_new_blocks will not guarantee entire block
1397 if (dn->data_blkaddr == NULL_ADDR) {
1401 if (dn->data_blkaddr != NEW_ADDR) {
1402 f2fs_invalidate_blocks(sbi, dn->data_blkaddr);
1403 dn->data_blkaddr = NEW_ADDR;
1404 f2fs_set_data_blkaddr(dn);
1408 f2fs_update_extent_cache_range(dn, start, 0, index - start);
1413 static int f2fs_zero_range(struct inode *inode, loff_t offset, loff_t len,
1416 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1417 struct address_space *mapping = inode->i_mapping;
1418 pgoff_t index, pg_start, pg_end;
1419 loff_t new_size = i_size_read(inode);
1420 loff_t off_start, off_end;
1423 ret = inode_newsize_ok(inode, (len + offset));
1427 ret = f2fs_convert_inline_inode(inode);
1431 ret = filemap_write_and_wait_range(mapping, offset, offset + len - 1);
1435 pg_start = ((unsigned long long) offset) >> PAGE_SHIFT;
1436 pg_end = ((unsigned long long) offset + len) >> PAGE_SHIFT;
1438 off_start = offset & (PAGE_SIZE - 1);
1439 off_end = (offset + len) & (PAGE_SIZE - 1);
1441 if (pg_start == pg_end) {
1442 ret = fill_zero(inode, pg_start, off_start,
1443 off_end - off_start);
1447 new_size = max_t(loff_t, new_size, offset + len);
1450 ret = fill_zero(inode, pg_start++, off_start,
1451 PAGE_SIZE - off_start);
1455 new_size = max_t(loff_t, new_size,
1456 (loff_t)pg_start << PAGE_SHIFT);
1459 for (index = pg_start; index < pg_end;) {
1460 struct dnode_of_data dn;
1461 unsigned int end_offset;
1464 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1465 down_write(&F2FS_I(inode)->i_mmap_sem);
1467 truncate_pagecache_range(inode,
1468 (loff_t)index << PAGE_SHIFT,
1469 ((loff_t)pg_end << PAGE_SHIFT) - 1);
1473 set_new_dnode(&dn, inode, NULL, NULL, 0);
1474 ret = f2fs_get_dnode_of_data(&dn, index, ALLOC_NODE);
1476 f2fs_unlock_op(sbi);
1477 up_write(&F2FS_I(inode)->i_mmap_sem);
1478 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1482 end_offset = ADDRS_PER_PAGE(dn.node_page, inode);
1483 end = min(pg_end, end_offset - dn.ofs_in_node + index);
1485 ret = f2fs_do_zero_range(&dn, index, end);
1486 f2fs_put_dnode(&dn);
1488 f2fs_unlock_op(sbi);
1489 up_write(&F2FS_I(inode)->i_mmap_sem);
1490 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1492 f2fs_balance_fs(sbi, dn.node_changed);
1498 new_size = max_t(loff_t, new_size,
1499 (loff_t)index << PAGE_SHIFT);
1503 ret = fill_zero(inode, pg_end, 0, off_end);
1507 new_size = max_t(loff_t, new_size, offset + len);
1512 if (new_size > i_size_read(inode)) {
1513 if (mode & FALLOC_FL_KEEP_SIZE)
1514 file_set_keep_isize(inode);
1516 f2fs_i_size_write(inode, new_size);
1521 static int f2fs_insert_range(struct inode *inode, loff_t offset, loff_t len)
1523 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1524 pgoff_t nr, pg_start, pg_end, delta, idx;
1528 new_size = i_size_read(inode) + len;
1529 ret = inode_newsize_ok(inode, new_size);
1533 if (offset >= i_size_read(inode))
1536 /* insert range should be aligned to block size of f2fs. */
1537 if (offset & (F2FS_BLKSIZE - 1) || len & (F2FS_BLKSIZE - 1))
1540 ret = f2fs_convert_inline_inode(inode);
1544 f2fs_balance_fs(sbi, true);
1546 down_write(&F2FS_I(inode)->i_mmap_sem);
1547 ret = f2fs_truncate_blocks(inode, i_size_read(inode), true);
1548 up_write(&F2FS_I(inode)->i_mmap_sem);
1552 /* write out all dirty pages from offset */
1553 ret = filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1557 pg_start = offset >> PAGE_SHIFT;
1558 pg_end = (offset + len) >> PAGE_SHIFT;
1559 delta = pg_end - pg_start;
1560 idx = DIV_ROUND_UP(i_size_read(inode), PAGE_SIZE);
1562 /* avoid gc operation during block exchange */
1563 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1564 down_write(&F2FS_I(inode)->i_mmap_sem);
1565 truncate_pagecache(inode, offset);
1567 while (!ret && idx > pg_start) {
1568 nr = idx - pg_start;
1574 f2fs_drop_extent_tree(inode);
1576 ret = __exchange_data_block(inode, inode, idx,
1577 idx + delta, nr, false);
1578 f2fs_unlock_op(sbi);
1580 up_write(&F2FS_I(inode)->i_mmap_sem);
1581 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
1583 /* write out all moved pages, if possible */
1584 down_write(&F2FS_I(inode)->i_mmap_sem);
1585 filemap_write_and_wait_range(inode->i_mapping, offset, LLONG_MAX);
1586 truncate_pagecache(inode, offset);
1587 up_write(&F2FS_I(inode)->i_mmap_sem);
1590 f2fs_i_size_write(inode, new_size);
1594 static int expand_inode_data(struct inode *inode, loff_t offset,
1595 loff_t len, int mode)
1597 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
1598 struct f2fs_map_blocks map = { .m_next_pgofs = NULL,
1599 .m_next_extent = NULL, .m_seg_type = NO_CHECK_TYPE,
1600 .m_may_create = true };
1602 loff_t new_size = i_size_read(inode);
1606 err = inode_newsize_ok(inode, (len + offset));
1610 err = f2fs_convert_inline_inode(inode);
1614 f2fs_balance_fs(sbi, true);
1616 pg_end = ((unsigned long long)offset + len) >> PAGE_SHIFT;
1617 off_end = (offset + len) & (PAGE_SIZE - 1);
1619 map.m_lblk = ((unsigned long long)offset) >> PAGE_SHIFT;
1620 map.m_len = pg_end - map.m_lblk;
1627 if (f2fs_is_pinned_file(inode)) {
1628 block_t len = (map.m_len >> sbi->log_blocks_per_seg) <<
1629 sbi->log_blocks_per_seg;
1632 if (map.m_len % sbi->blocks_per_seg)
1633 len += sbi->blocks_per_seg;
1635 map.m_len = sbi->blocks_per_seg;
1637 if (has_not_enough_free_secs(sbi, 0,
1638 GET_SEC_FROM_SEG(sbi, overprovision_segments(sbi)))) {
1639 down_write(&sbi->gc_lock);
1640 err = f2fs_gc(sbi, true, false, NULL_SEGNO);
1641 if (err && err != -ENODATA && err != -EAGAIN)
1645 down_write(&sbi->pin_sem);
1646 map.m_seg_type = CURSEG_COLD_DATA_PINNED;
1647 f2fs_allocate_new_segments(sbi, CURSEG_COLD_DATA);
1648 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
1649 up_write(&sbi->pin_sem);
1653 map.m_lblk += map.m_len;
1659 err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
1668 last_off = map.m_lblk + map.m_len - 1;
1670 /* update new size to the failed position */
1671 new_size = (last_off == pg_end) ? offset + len :
1672 (loff_t)(last_off + 1) << PAGE_SHIFT;
1674 new_size = ((loff_t)pg_end << PAGE_SHIFT) + off_end;
1677 if (new_size > i_size_read(inode)) {
1678 if (mode & FALLOC_FL_KEEP_SIZE)
1679 file_set_keep_isize(inode);
1681 f2fs_i_size_write(inode, new_size);
1687 static long f2fs_fallocate(struct file *file, int mode,
1688 loff_t offset, loff_t len)
1690 struct inode *inode = file_inode(file);
1693 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode))))
1695 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(inode)))
1697 if (!f2fs_is_compress_backend_ready(inode))
1700 /* f2fs only support ->fallocate for regular file */
1701 if (!S_ISREG(inode->i_mode))
1704 if (IS_ENCRYPTED(inode) &&
1705 (mode & (FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_INSERT_RANGE)))
1708 if (f2fs_compressed_file(inode) &&
1709 (mode & (FALLOC_FL_PUNCH_HOLE | FALLOC_FL_COLLAPSE_RANGE |
1710 FALLOC_FL_ZERO_RANGE | FALLOC_FL_INSERT_RANGE)))
1713 if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE |
1714 FALLOC_FL_COLLAPSE_RANGE | FALLOC_FL_ZERO_RANGE |
1715 FALLOC_FL_INSERT_RANGE))
1720 if (mode & FALLOC_FL_PUNCH_HOLE) {
1721 if (offset >= inode->i_size)
1724 ret = punch_hole(inode, offset, len);
1725 } else if (mode & FALLOC_FL_COLLAPSE_RANGE) {
1726 ret = f2fs_collapse_range(inode, offset, len);
1727 } else if (mode & FALLOC_FL_ZERO_RANGE) {
1728 ret = f2fs_zero_range(inode, offset, len, mode);
1729 } else if (mode & FALLOC_FL_INSERT_RANGE) {
1730 ret = f2fs_insert_range(inode, offset, len);
1732 ret = expand_inode_data(inode, offset, len, mode);
1736 inode->i_mtime = inode->i_ctime = current_time(inode);
1737 f2fs_mark_inode_dirty_sync(inode, false);
1738 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
1742 inode_unlock(inode);
1744 trace_f2fs_fallocate(inode, mode, offset, len, ret);
1748 static int f2fs_release_file(struct inode *inode, struct file *filp)
1751 * f2fs_relase_file is called at every close calls. So we should
1752 * not drop any inmemory pages by close called by other process.
1754 if (!(filp->f_mode & FMODE_WRITE) ||
1755 atomic_read(&inode->i_writecount) != 1)
1758 /* some remained atomic pages should discarded */
1759 if (f2fs_is_atomic_file(inode))
1760 f2fs_drop_inmem_pages(inode);
1761 if (f2fs_is_volatile_file(inode)) {
1762 set_inode_flag(inode, FI_DROP_CACHE);
1763 filemap_fdatawrite(inode->i_mapping);
1764 clear_inode_flag(inode, FI_DROP_CACHE);
1765 clear_inode_flag(inode, FI_VOLATILE_FILE);
1766 stat_dec_volatile_write(inode);
1771 static int f2fs_file_flush(struct file *file, fl_owner_t id)
1773 struct inode *inode = file_inode(file);
1776 * If the process doing a transaction is crashed, we should do
1777 * roll-back. Otherwise, other reader/write can see corrupted database
1778 * until all the writers close its file. Since this should be done
1779 * before dropping file lock, it needs to do in ->flush.
1781 if (f2fs_is_atomic_file(inode) &&
1782 F2FS_I(inode)->inmem_task == current)
1783 f2fs_drop_inmem_pages(inode);
1787 static int f2fs_setflags_common(struct inode *inode, u32 iflags, u32 mask)
1789 struct f2fs_inode_info *fi = F2FS_I(inode);
1791 /* Is it quota file? Do not allow user to mess with it */
1792 if (IS_NOQUOTA(inode))
1795 if ((iflags ^ fi->i_flags) & F2FS_CASEFOLD_FL) {
1796 if (!f2fs_sb_has_casefold(F2FS_I_SB(inode)))
1798 if (!f2fs_empty_dir(inode))
1802 if (iflags & (F2FS_COMPR_FL | F2FS_NOCOMP_FL)) {
1803 if (!f2fs_sb_has_compression(F2FS_I_SB(inode)))
1805 if ((iflags & F2FS_COMPR_FL) && (iflags & F2FS_NOCOMP_FL))
1809 if ((iflags ^ fi->i_flags) & F2FS_COMPR_FL) {
1810 if (S_ISREG(inode->i_mode) &&
1811 (fi->i_flags & F2FS_COMPR_FL || i_size_read(inode) ||
1812 F2FS_HAS_BLOCKS(inode)))
1814 if (iflags & F2FS_NOCOMP_FL)
1816 if (iflags & F2FS_COMPR_FL) {
1817 int err = f2fs_convert_inline_inode(inode);
1822 if (!f2fs_may_compress(inode))
1825 set_compress_context(inode);
1828 if ((iflags ^ fi->i_flags) & F2FS_NOCOMP_FL) {
1829 if (fi->i_flags & F2FS_COMPR_FL)
1833 fi->i_flags = iflags | (fi->i_flags & ~mask);
1834 f2fs_bug_on(F2FS_I_SB(inode), (fi->i_flags & F2FS_COMPR_FL) &&
1835 (fi->i_flags & F2FS_NOCOMP_FL));
1837 if (fi->i_flags & F2FS_PROJINHERIT_FL)
1838 set_inode_flag(inode, FI_PROJ_INHERIT);
1840 clear_inode_flag(inode, FI_PROJ_INHERIT);
1842 inode->i_ctime = current_time(inode);
1843 f2fs_set_inode_flags(inode);
1844 f2fs_mark_inode_dirty_sync(inode, true);
1848 /* FS_IOC_GETFLAGS and FS_IOC_SETFLAGS support */
1851 * To make a new on-disk f2fs i_flag gettable via FS_IOC_GETFLAGS, add an entry
1852 * for it to f2fs_fsflags_map[], and add its FS_*_FL equivalent to
1853 * F2FS_GETTABLE_FS_FL. To also make it settable via FS_IOC_SETFLAGS, also add
1854 * its FS_*_FL equivalent to F2FS_SETTABLE_FS_FL.
1857 static const struct {
1860 } f2fs_fsflags_map[] = {
1861 { F2FS_COMPR_FL, FS_COMPR_FL },
1862 { F2FS_SYNC_FL, FS_SYNC_FL },
1863 { F2FS_IMMUTABLE_FL, FS_IMMUTABLE_FL },
1864 { F2FS_APPEND_FL, FS_APPEND_FL },
1865 { F2FS_NODUMP_FL, FS_NODUMP_FL },
1866 { F2FS_NOATIME_FL, FS_NOATIME_FL },
1867 { F2FS_NOCOMP_FL, FS_NOCOMP_FL },
1868 { F2FS_INDEX_FL, FS_INDEX_FL },
1869 { F2FS_DIRSYNC_FL, FS_DIRSYNC_FL },
1870 { F2FS_PROJINHERIT_FL, FS_PROJINHERIT_FL },
1871 { F2FS_CASEFOLD_FL, FS_CASEFOLD_FL },
1874 #define F2FS_GETTABLE_FS_FL ( \
1884 FS_PROJINHERIT_FL | \
1886 FS_INLINE_DATA_FL | \
1891 #define F2FS_SETTABLE_FS_FL ( \
1900 FS_PROJINHERIT_FL | \
1903 /* Convert f2fs on-disk i_flags to FS_IOC_{GET,SET}FLAGS flags */
1904 static inline u32 f2fs_iflags_to_fsflags(u32 iflags)
1909 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1910 if (iflags & f2fs_fsflags_map[i].iflag)
1911 fsflags |= f2fs_fsflags_map[i].fsflag;
1916 /* Convert FS_IOC_{GET,SET}FLAGS flags to f2fs on-disk i_flags */
1917 static inline u32 f2fs_fsflags_to_iflags(u32 fsflags)
1922 for (i = 0; i < ARRAY_SIZE(f2fs_fsflags_map); i++)
1923 if (fsflags & f2fs_fsflags_map[i].fsflag)
1924 iflags |= f2fs_fsflags_map[i].iflag;
1929 static int f2fs_ioc_getflags(struct file *filp, unsigned long arg)
1931 struct inode *inode = file_inode(filp);
1932 struct f2fs_inode_info *fi = F2FS_I(inode);
1933 u32 fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1935 if (IS_ENCRYPTED(inode))
1936 fsflags |= FS_ENCRYPT_FL;
1937 if (IS_VERITY(inode))
1938 fsflags |= FS_VERITY_FL;
1939 if (f2fs_has_inline_data(inode) || f2fs_has_inline_dentry(inode))
1940 fsflags |= FS_INLINE_DATA_FL;
1941 if (is_inode_flag_set(inode, FI_PIN_FILE))
1942 fsflags |= FS_NOCOW_FL;
1944 fsflags &= F2FS_GETTABLE_FS_FL;
1946 return put_user(fsflags, (int __user *)arg);
1949 static int f2fs_ioc_setflags(struct file *filp, unsigned long arg)
1951 struct inode *inode = file_inode(filp);
1952 struct f2fs_inode_info *fi = F2FS_I(inode);
1953 u32 fsflags, old_fsflags;
1957 if (!inode_owner_or_capable(inode))
1960 if (get_user(fsflags, (int __user *)arg))
1963 if (fsflags & ~F2FS_GETTABLE_FS_FL)
1965 fsflags &= F2FS_SETTABLE_FS_FL;
1967 iflags = f2fs_fsflags_to_iflags(fsflags);
1968 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
1971 ret = mnt_want_write_file(filp);
1977 old_fsflags = f2fs_iflags_to_fsflags(fi->i_flags);
1978 ret = vfs_ioc_setflags_prepare(inode, old_fsflags, fsflags);
1982 ret = f2fs_setflags_common(inode, iflags,
1983 f2fs_fsflags_to_iflags(F2FS_SETTABLE_FS_FL));
1985 inode_unlock(inode);
1986 mnt_drop_write_file(filp);
1990 static int f2fs_ioc_getversion(struct file *filp, unsigned long arg)
1992 struct inode *inode = file_inode(filp);
1994 return put_user(inode->i_generation, (int __user *)arg);
1997 static int f2fs_ioc_start_atomic_write(struct file *filp)
1999 struct inode *inode = file_inode(filp);
2000 struct f2fs_inode_info *fi = F2FS_I(inode);
2001 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2004 if (!inode_owner_or_capable(inode))
2007 if (!S_ISREG(inode->i_mode))
2010 if (filp->f_flags & O_DIRECT)
2013 ret = mnt_want_write_file(filp);
2019 f2fs_disable_compressed_file(inode);
2021 if (f2fs_is_atomic_file(inode)) {
2022 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST))
2027 ret = f2fs_convert_inline_inode(inode);
2031 down_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
2034 * Should wait end_io to count F2FS_WB_CP_DATA correctly by
2035 * f2fs_is_atomic_file.
2037 if (get_dirty_pages(inode))
2038 f2fs_warn(F2FS_I_SB(inode), "Unexpected flush for atomic writes: ino=%lu, npages=%u",
2039 inode->i_ino, get_dirty_pages(inode));
2040 ret = filemap_write_and_wait_range(inode->i_mapping, 0, LLONG_MAX);
2042 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
2046 spin_lock(&sbi->inode_lock[ATOMIC_FILE]);
2047 if (list_empty(&fi->inmem_ilist))
2048 list_add_tail(&fi->inmem_ilist, &sbi->inode_list[ATOMIC_FILE]);
2049 sbi->atomic_files++;
2050 spin_unlock(&sbi->inode_lock[ATOMIC_FILE]);
2052 /* add inode in inmem_list first and set atomic_file */
2053 set_inode_flag(inode, FI_ATOMIC_FILE);
2054 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2055 up_write(&F2FS_I(inode)->i_gc_rwsem[WRITE]);
2057 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2058 F2FS_I(inode)->inmem_task = current;
2059 stat_update_max_atomic_write(inode);
2061 inode_unlock(inode);
2062 mnt_drop_write_file(filp);
2066 static int f2fs_ioc_commit_atomic_write(struct file *filp)
2068 struct inode *inode = file_inode(filp);
2071 if (!inode_owner_or_capable(inode))
2074 ret = mnt_want_write_file(filp);
2078 f2fs_balance_fs(F2FS_I_SB(inode), true);
2082 if (f2fs_is_volatile_file(inode)) {
2087 if (f2fs_is_atomic_file(inode)) {
2088 ret = f2fs_commit_inmem_pages(inode);
2092 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
2094 f2fs_drop_inmem_pages(inode);
2096 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 1, false);
2099 if (is_inode_flag_set(inode, FI_ATOMIC_REVOKE_REQUEST)) {
2100 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2103 inode_unlock(inode);
2104 mnt_drop_write_file(filp);
2108 static int f2fs_ioc_start_volatile_write(struct file *filp)
2110 struct inode *inode = file_inode(filp);
2113 if (!inode_owner_or_capable(inode))
2116 if (!S_ISREG(inode->i_mode))
2119 ret = mnt_want_write_file(filp);
2125 if (f2fs_is_volatile_file(inode))
2128 ret = f2fs_convert_inline_inode(inode);
2132 stat_inc_volatile_write(inode);
2133 stat_update_max_volatile_write(inode);
2135 set_inode_flag(inode, FI_VOLATILE_FILE);
2136 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2138 inode_unlock(inode);
2139 mnt_drop_write_file(filp);
2143 static int f2fs_ioc_release_volatile_write(struct file *filp)
2145 struct inode *inode = file_inode(filp);
2148 if (!inode_owner_or_capable(inode))
2151 ret = mnt_want_write_file(filp);
2157 if (!f2fs_is_volatile_file(inode))
2160 if (!f2fs_is_first_block_written(inode)) {
2161 ret = truncate_partial_data_page(inode, 0, true);
2165 ret = punch_hole(inode, 0, F2FS_BLKSIZE);
2167 inode_unlock(inode);
2168 mnt_drop_write_file(filp);
2172 static int f2fs_ioc_abort_volatile_write(struct file *filp)
2174 struct inode *inode = file_inode(filp);
2177 if (!inode_owner_or_capable(inode))
2180 ret = mnt_want_write_file(filp);
2186 if (f2fs_is_atomic_file(inode))
2187 f2fs_drop_inmem_pages(inode);
2188 if (f2fs_is_volatile_file(inode)) {
2189 clear_inode_flag(inode, FI_VOLATILE_FILE);
2190 stat_dec_volatile_write(inode);
2191 ret = f2fs_do_sync_file(filp, 0, LLONG_MAX, 0, true);
2194 clear_inode_flag(inode, FI_ATOMIC_REVOKE_REQUEST);
2196 inode_unlock(inode);
2198 mnt_drop_write_file(filp);
2199 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2203 static int f2fs_ioc_shutdown(struct file *filp, unsigned long arg)
2205 struct inode *inode = file_inode(filp);
2206 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2207 struct super_block *sb = sbi->sb;
2211 if (!capable(CAP_SYS_ADMIN))
2214 if (get_user(in, (__u32 __user *)arg))
2217 if (in != F2FS_GOING_DOWN_FULLSYNC) {
2218 ret = mnt_want_write_file(filp);
2224 case F2FS_GOING_DOWN_FULLSYNC:
2225 sb = freeze_bdev(sb->s_bdev);
2231 f2fs_stop_checkpoint(sbi, false);
2232 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2233 thaw_bdev(sb->s_bdev, sb);
2236 case F2FS_GOING_DOWN_METASYNC:
2237 /* do checkpoint only */
2238 ret = f2fs_sync_fs(sb, 1);
2241 f2fs_stop_checkpoint(sbi, false);
2242 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2244 case F2FS_GOING_DOWN_NOSYNC:
2245 f2fs_stop_checkpoint(sbi, false);
2246 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2248 case F2FS_GOING_DOWN_METAFLUSH:
2249 f2fs_sync_meta_pages(sbi, META, LONG_MAX, FS_META_IO);
2250 f2fs_stop_checkpoint(sbi, false);
2251 set_sbi_flag(sbi, SBI_IS_SHUTDOWN);
2253 case F2FS_GOING_DOWN_NEED_FSCK:
2254 set_sbi_flag(sbi, SBI_NEED_FSCK);
2255 set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
2256 set_sbi_flag(sbi, SBI_IS_DIRTY);
2257 /* do checkpoint only */
2258 ret = f2fs_sync_fs(sb, 1);
2265 f2fs_stop_gc_thread(sbi);
2266 f2fs_stop_discard_thread(sbi);
2268 f2fs_drop_discard_cmd(sbi);
2269 clear_opt(sbi, DISCARD);
2271 f2fs_update_time(sbi, REQ_TIME);
2273 if (in != F2FS_GOING_DOWN_FULLSYNC)
2274 mnt_drop_write_file(filp);
2276 trace_f2fs_shutdown(sbi, in, ret);
2281 static int f2fs_ioc_fitrim(struct file *filp, unsigned long arg)
2283 struct inode *inode = file_inode(filp);
2284 struct super_block *sb = inode->i_sb;
2285 struct request_queue *q = bdev_get_queue(sb->s_bdev);
2286 struct fstrim_range range;
2289 if (!capable(CAP_SYS_ADMIN))
2292 if (!f2fs_hw_support_discard(F2FS_SB(sb)))
2295 if (copy_from_user(&range, (struct fstrim_range __user *)arg,
2299 ret = mnt_want_write_file(filp);
2303 range.minlen = max((unsigned int)range.minlen,
2304 q->limits.discard_granularity);
2305 ret = f2fs_trim_fs(F2FS_SB(sb), &range);
2306 mnt_drop_write_file(filp);
2310 if (copy_to_user((struct fstrim_range __user *)arg, &range,
2313 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2317 static bool uuid_is_nonzero(__u8 u[16])
2321 for (i = 0; i < 16; i++)
2327 static int f2fs_ioc_set_encryption_policy(struct file *filp, unsigned long arg)
2329 struct inode *inode = file_inode(filp);
2331 if (!f2fs_sb_has_encrypt(F2FS_I_SB(inode)))
2334 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
2336 return fscrypt_ioctl_set_policy(filp, (const void __user *)arg);
2339 static int f2fs_ioc_get_encryption_policy(struct file *filp, unsigned long arg)
2341 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2343 return fscrypt_ioctl_get_policy(filp, (void __user *)arg);
2346 static int f2fs_ioc_get_encryption_pwsalt(struct file *filp, unsigned long arg)
2348 struct inode *inode = file_inode(filp);
2349 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2352 if (!f2fs_sb_has_encrypt(sbi))
2355 err = mnt_want_write_file(filp);
2359 down_write(&sbi->sb_lock);
2361 if (uuid_is_nonzero(sbi->raw_super->encrypt_pw_salt))
2364 /* update superblock with uuid */
2365 generate_random_uuid(sbi->raw_super->encrypt_pw_salt);
2367 err = f2fs_commit_super(sbi, false);
2370 memset(sbi->raw_super->encrypt_pw_salt, 0, 16);
2374 if (copy_to_user((__u8 __user *)arg, sbi->raw_super->encrypt_pw_salt,
2378 up_write(&sbi->sb_lock);
2379 mnt_drop_write_file(filp);
2383 static int f2fs_ioc_get_encryption_policy_ex(struct file *filp,
2386 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2389 return fscrypt_ioctl_get_policy_ex(filp, (void __user *)arg);
2392 static int f2fs_ioc_add_encryption_key(struct file *filp, unsigned long arg)
2394 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2397 return fscrypt_ioctl_add_key(filp, (void __user *)arg);
2400 static int f2fs_ioc_remove_encryption_key(struct file *filp, unsigned long arg)
2402 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2405 return fscrypt_ioctl_remove_key(filp, (void __user *)arg);
2408 static int f2fs_ioc_remove_encryption_key_all_users(struct file *filp,
2411 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2414 return fscrypt_ioctl_remove_key_all_users(filp, (void __user *)arg);
2417 static int f2fs_ioc_get_encryption_key_status(struct file *filp,
2420 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2423 return fscrypt_ioctl_get_key_status(filp, (void __user *)arg);
2426 static int f2fs_ioc_get_encryption_nonce(struct file *filp, unsigned long arg)
2428 if (!f2fs_sb_has_encrypt(F2FS_I_SB(file_inode(filp))))
2431 return fscrypt_ioctl_get_nonce(filp, (void __user *)arg);
2434 static int f2fs_ioc_gc(struct file *filp, unsigned long arg)
2436 struct inode *inode = file_inode(filp);
2437 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2441 if (!capable(CAP_SYS_ADMIN))
2444 if (get_user(sync, (__u32 __user *)arg))
2447 if (f2fs_readonly(sbi->sb))
2450 ret = mnt_want_write_file(filp);
2455 if (!down_write_trylock(&sbi->gc_lock)) {
2460 down_write(&sbi->gc_lock);
2463 ret = f2fs_gc(sbi, sync, true, NULL_SEGNO);
2465 mnt_drop_write_file(filp);
2469 static int f2fs_ioc_gc_range(struct file *filp, unsigned long arg)
2471 struct inode *inode = file_inode(filp);
2472 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2473 struct f2fs_gc_range range;
2477 if (!capable(CAP_SYS_ADMIN))
2480 if (copy_from_user(&range, (struct f2fs_gc_range __user *)arg,
2484 if (f2fs_readonly(sbi->sb))
2487 end = range.start + range.len;
2488 if (end < range.start || range.start < MAIN_BLKADDR(sbi) ||
2489 end >= MAX_BLKADDR(sbi))
2492 ret = mnt_want_write_file(filp);
2498 if (!down_write_trylock(&sbi->gc_lock)) {
2503 down_write(&sbi->gc_lock);
2506 ret = f2fs_gc(sbi, range.sync, true, GET_SEGNO(sbi, range.start));
2507 range.start += BLKS_PER_SEC(sbi);
2508 if (range.start <= end)
2511 mnt_drop_write_file(filp);
2515 static int f2fs_ioc_write_checkpoint(struct file *filp, unsigned long arg)
2517 struct inode *inode = file_inode(filp);
2518 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2521 if (!capable(CAP_SYS_ADMIN))
2524 if (f2fs_readonly(sbi->sb))
2527 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
2528 f2fs_info(sbi, "Skipping Checkpoint. Checkpoints currently disabled.");
2532 ret = mnt_want_write_file(filp);
2536 ret = f2fs_sync_fs(sbi->sb, 1);
2538 mnt_drop_write_file(filp);
2542 static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
2544 struct f2fs_defragment *range)
2546 struct inode *inode = file_inode(filp);
2547 struct f2fs_map_blocks map = { .m_next_extent = NULL,
2548 .m_seg_type = NO_CHECK_TYPE ,
2549 .m_may_create = false };
2550 struct extent_info ei = {0, 0, 0};
2551 pgoff_t pg_start, pg_end, next_pgofs;
2552 unsigned int blk_per_seg = sbi->blocks_per_seg;
2553 unsigned int total = 0, sec_num;
2554 block_t blk_end = 0;
2555 bool fragmented = false;
2558 /* if in-place-update policy is enabled, don't waste time here */
2559 if (f2fs_should_update_inplace(inode, NULL))
2562 pg_start = range->start >> PAGE_SHIFT;
2563 pg_end = (range->start + range->len) >> PAGE_SHIFT;
2565 f2fs_balance_fs(sbi, true);
2569 /* writeback all dirty pages in the range */
2570 err = filemap_write_and_wait_range(inode->i_mapping, range->start,
2571 range->start + range->len - 1);
2576 * lookup mapping info in extent cache, skip defragmenting if physical
2577 * block addresses are continuous.
2579 if (f2fs_lookup_extent_cache(inode, pg_start, &ei)) {
2580 if (ei.fofs + ei.len >= pg_end)
2584 map.m_lblk = pg_start;
2585 map.m_next_pgofs = &next_pgofs;
2588 * lookup mapping info in dnode page cache, skip defragmenting if all
2589 * physical block addresses are continuous even if there are hole(s)
2590 * in logical blocks.
2592 while (map.m_lblk < pg_end) {
2593 map.m_len = pg_end - map.m_lblk;
2594 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2598 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2599 map.m_lblk = next_pgofs;
2603 if (blk_end && blk_end != map.m_pblk)
2606 /* record total count of block that we're going to move */
2609 blk_end = map.m_pblk + map.m_len;
2611 map.m_lblk += map.m_len;
2619 sec_num = DIV_ROUND_UP(total, BLKS_PER_SEC(sbi));
2622 * make sure there are enough free section for LFS allocation, this can
2623 * avoid defragment running in SSR mode when free section are allocated
2626 if (has_not_enough_free_secs(sbi, 0, sec_num)) {
2631 map.m_lblk = pg_start;
2632 map.m_len = pg_end - pg_start;
2635 while (map.m_lblk < pg_end) {
2640 map.m_len = pg_end - map.m_lblk;
2641 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
2645 if (!(map.m_flags & F2FS_MAP_FLAGS)) {
2646 map.m_lblk = next_pgofs;
2650 set_inode_flag(inode, FI_DO_DEFRAG);
2653 while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
2656 page = f2fs_get_lock_data_page(inode, idx, true);
2658 err = PTR_ERR(page);
2662 set_page_dirty(page);
2663 f2fs_put_page(page, 1);
2672 if (map.m_lblk < pg_end && cnt < blk_per_seg)
2675 clear_inode_flag(inode, FI_DO_DEFRAG);
2677 err = filemap_fdatawrite(inode->i_mapping);
2682 clear_inode_flag(inode, FI_DO_DEFRAG);
2684 inode_unlock(inode);
2686 range->len = (u64)total << PAGE_SHIFT;
2690 static int f2fs_ioc_defragment(struct file *filp, unsigned long arg)
2692 struct inode *inode = file_inode(filp);
2693 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2694 struct f2fs_defragment range;
2697 if (!capable(CAP_SYS_ADMIN))
2700 if (!S_ISREG(inode->i_mode) || f2fs_is_atomic_file(inode))
2703 if (f2fs_readonly(sbi->sb))
2706 if (copy_from_user(&range, (struct f2fs_defragment __user *)arg,
2710 /* verify alignment of offset & size */
2711 if (range.start & (F2FS_BLKSIZE - 1) || range.len & (F2FS_BLKSIZE - 1))
2714 if (unlikely((range.start + range.len) >> PAGE_SHIFT >
2715 sbi->max_file_blocks))
2718 err = mnt_want_write_file(filp);
2722 err = f2fs_defragment_range(sbi, filp, &range);
2723 mnt_drop_write_file(filp);
2725 f2fs_update_time(sbi, REQ_TIME);
2729 if (copy_to_user((struct f2fs_defragment __user *)arg, &range,
2736 static int f2fs_move_file_range(struct file *file_in, loff_t pos_in,
2737 struct file *file_out, loff_t pos_out, size_t len)
2739 struct inode *src = file_inode(file_in);
2740 struct inode *dst = file_inode(file_out);
2741 struct f2fs_sb_info *sbi = F2FS_I_SB(src);
2742 size_t olen = len, dst_max_i_size = 0;
2746 if (file_in->f_path.mnt != file_out->f_path.mnt ||
2747 src->i_sb != dst->i_sb)
2750 if (unlikely(f2fs_readonly(src->i_sb)))
2753 if (!S_ISREG(src->i_mode) || !S_ISREG(dst->i_mode))
2756 if (IS_ENCRYPTED(src) || IS_ENCRYPTED(dst))
2760 if (pos_in == pos_out)
2762 if (pos_out > pos_in && pos_out < pos_in + len)
2769 if (!inode_trylock(dst))
2774 if (pos_in + len > src->i_size || pos_in + len < pos_in)
2777 olen = len = src->i_size - pos_in;
2778 if (pos_in + len == src->i_size)
2779 len = ALIGN(src->i_size, F2FS_BLKSIZE) - pos_in;
2785 dst_osize = dst->i_size;
2786 if (pos_out + olen > dst->i_size)
2787 dst_max_i_size = pos_out + olen;
2789 /* verify the end result is block aligned */
2790 if (!IS_ALIGNED(pos_in, F2FS_BLKSIZE) ||
2791 !IS_ALIGNED(pos_in + len, F2FS_BLKSIZE) ||
2792 !IS_ALIGNED(pos_out, F2FS_BLKSIZE))
2795 ret = f2fs_convert_inline_inode(src);
2799 ret = f2fs_convert_inline_inode(dst);
2803 /* write out all dirty pages from offset */
2804 ret = filemap_write_and_wait_range(src->i_mapping,
2805 pos_in, pos_in + len);
2809 ret = filemap_write_and_wait_range(dst->i_mapping,
2810 pos_out, pos_out + len);
2814 f2fs_balance_fs(sbi, true);
2816 down_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2819 if (!down_write_trylock(&F2FS_I(dst)->i_gc_rwsem[WRITE]))
2824 ret = __exchange_data_block(src, dst, pos_in >> F2FS_BLKSIZE_BITS,
2825 pos_out >> F2FS_BLKSIZE_BITS,
2826 len >> F2FS_BLKSIZE_BITS, false);
2830 f2fs_i_size_write(dst, dst_max_i_size);
2831 else if (dst_osize != dst->i_size)
2832 f2fs_i_size_write(dst, dst_osize);
2834 f2fs_unlock_op(sbi);
2837 up_write(&F2FS_I(dst)->i_gc_rwsem[WRITE]);
2839 up_write(&F2FS_I(src)->i_gc_rwsem[WRITE]);
2848 static int f2fs_ioc_move_range(struct file *filp, unsigned long arg)
2850 struct f2fs_move_range range;
2854 if (!(filp->f_mode & FMODE_READ) ||
2855 !(filp->f_mode & FMODE_WRITE))
2858 if (copy_from_user(&range, (struct f2fs_move_range __user *)arg,
2862 dst = fdget(range.dst_fd);
2866 if (!(dst.file->f_mode & FMODE_WRITE)) {
2871 err = mnt_want_write_file(filp);
2875 err = f2fs_move_file_range(filp, range.pos_in, dst.file,
2876 range.pos_out, range.len);
2878 mnt_drop_write_file(filp);
2882 if (copy_to_user((struct f2fs_move_range __user *)arg,
2883 &range, sizeof(range)))
2890 static int f2fs_ioc_flush_device(struct file *filp, unsigned long arg)
2892 struct inode *inode = file_inode(filp);
2893 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2894 struct sit_info *sm = SIT_I(sbi);
2895 unsigned int start_segno = 0, end_segno = 0;
2896 unsigned int dev_start_segno = 0, dev_end_segno = 0;
2897 struct f2fs_flush_device range;
2900 if (!capable(CAP_SYS_ADMIN))
2903 if (f2fs_readonly(sbi->sb))
2906 if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
2909 if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,
2913 if (!f2fs_is_multi_device(sbi) || sbi->s_ndevs - 1 <= range.dev_num ||
2914 __is_large_section(sbi)) {
2915 f2fs_warn(sbi, "Can't flush %u in %d for segs_per_sec %u != 1",
2916 range.dev_num, sbi->s_ndevs, sbi->segs_per_sec);
2920 ret = mnt_want_write_file(filp);
2924 if (range.dev_num != 0)
2925 dev_start_segno = GET_SEGNO(sbi, FDEV(range.dev_num).start_blk);
2926 dev_end_segno = GET_SEGNO(sbi, FDEV(range.dev_num).end_blk);
2928 start_segno = sm->last_victim[FLUSH_DEVICE];
2929 if (start_segno < dev_start_segno || start_segno >= dev_end_segno)
2930 start_segno = dev_start_segno;
2931 end_segno = min(start_segno + range.segments, dev_end_segno);
2933 while (start_segno < end_segno) {
2934 if (!down_write_trylock(&sbi->gc_lock)) {
2938 sm->last_victim[GC_CB] = end_segno + 1;
2939 sm->last_victim[GC_GREEDY] = end_segno + 1;
2940 sm->last_victim[ALLOC_NEXT] = end_segno + 1;
2941 ret = f2fs_gc(sbi, true, true, start_segno);
2949 mnt_drop_write_file(filp);
2953 static int f2fs_ioc_get_features(struct file *filp, unsigned long arg)
2955 struct inode *inode = file_inode(filp);
2956 u32 sb_feature = le32_to_cpu(F2FS_I_SB(inode)->raw_super->feature);
2958 /* Must validate to set it with SQLite behavior in Android. */
2959 sb_feature |= F2FS_FEATURE_ATOMIC_WRITE;
2961 return put_user(sb_feature, (u32 __user *)arg);
2965 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
2967 struct dquot *transfer_to[MAXQUOTAS] = {};
2968 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2969 struct super_block *sb = sbi->sb;
2972 transfer_to[PRJQUOTA] = dqget(sb, make_kqid_projid(kprojid));
2973 if (!IS_ERR(transfer_to[PRJQUOTA])) {
2974 err = __dquot_transfer(inode, transfer_to);
2976 set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
2977 dqput(transfer_to[PRJQUOTA]);
2982 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
2984 struct inode *inode = file_inode(filp);
2985 struct f2fs_inode_info *fi = F2FS_I(inode);
2986 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
2991 if (!f2fs_sb_has_project_quota(sbi)) {
2992 if (projid != F2FS_DEF_PROJID)
2998 if (!f2fs_has_extra_attr(inode))
3001 kprojid = make_kprojid(&init_user_ns, (projid_t)projid);
3003 if (projid_eq(kprojid, F2FS_I(inode)->i_projid))
3007 /* Is it quota file? Do not allow user to mess with it */
3008 if (IS_NOQUOTA(inode))
3011 ipage = f2fs_get_node_page(sbi, inode->i_ino);
3013 return PTR_ERR(ipage);
3015 if (!F2FS_FITS_IN_INODE(F2FS_INODE(ipage), fi->i_extra_isize,
3018 f2fs_put_page(ipage, 1);
3021 f2fs_put_page(ipage, 1);
3023 err = dquot_initialize(inode);
3028 err = f2fs_transfer_project_quota(inode, kprojid);
3032 F2FS_I(inode)->i_projid = kprojid;
3033 inode->i_ctime = current_time(inode);
3034 f2fs_mark_inode_dirty_sync(inode, true);
3036 f2fs_unlock_op(sbi);
3040 int f2fs_transfer_project_quota(struct inode *inode, kprojid_t kprojid)
3045 static int f2fs_ioc_setproject(struct file *filp, __u32 projid)
3047 if (projid != F2FS_DEF_PROJID)
3053 /* FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR support */
3056 * To make a new on-disk f2fs i_flag gettable via FS_IOC_FSGETXATTR and settable
3057 * via FS_IOC_FSSETXATTR, add an entry for it to f2fs_xflags_map[], and add its
3058 * FS_XFLAG_* equivalent to F2FS_SUPPORTED_XFLAGS.
3061 static const struct {
3064 } f2fs_xflags_map[] = {
3065 { F2FS_SYNC_FL, FS_XFLAG_SYNC },
3066 { F2FS_IMMUTABLE_FL, FS_XFLAG_IMMUTABLE },
3067 { F2FS_APPEND_FL, FS_XFLAG_APPEND },
3068 { F2FS_NODUMP_FL, FS_XFLAG_NODUMP },
3069 { F2FS_NOATIME_FL, FS_XFLAG_NOATIME },
3070 { F2FS_PROJINHERIT_FL, FS_XFLAG_PROJINHERIT },
3073 #define F2FS_SUPPORTED_XFLAGS ( \
3075 FS_XFLAG_IMMUTABLE | \
3078 FS_XFLAG_NOATIME | \
3079 FS_XFLAG_PROJINHERIT)
3081 /* Convert f2fs on-disk i_flags to FS_IOC_FS{GET,SET}XATTR flags */
3082 static inline u32 f2fs_iflags_to_xflags(u32 iflags)
3087 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3088 if (iflags & f2fs_xflags_map[i].iflag)
3089 xflags |= f2fs_xflags_map[i].xflag;
3094 /* Convert FS_IOC_FS{GET,SET}XATTR flags to f2fs on-disk i_flags */
3095 static inline u32 f2fs_xflags_to_iflags(u32 xflags)
3100 for (i = 0; i < ARRAY_SIZE(f2fs_xflags_map); i++)
3101 if (xflags & f2fs_xflags_map[i].xflag)
3102 iflags |= f2fs_xflags_map[i].iflag;
3107 static void f2fs_fill_fsxattr(struct inode *inode, struct fsxattr *fa)
3109 struct f2fs_inode_info *fi = F2FS_I(inode);
3111 simple_fill_fsxattr(fa, f2fs_iflags_to_xflags(fi->i_flags));
3113 if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)))
3114 fa->fsx_projid = from_kprojid(&init_user_ns, fi->i_projid);
3117 static int f2fs_ioc_fsgetxattr(struct file *filp, unsigned long arg)
3119 struct inode *inode = file_inode(filp);
3122 f2fs_fill_fsxattr(inode, &fa);
3124 if (copy_to_user((struct fsxattr __user *)arg, &fa, sizeof(fa)))
3129 static int f2fs_ioc_fssetxattr(struct file *filp, unsigned long arg)
3131 struct inode *inode = file_inode(filp);
3132 struct fsxattr fa, old_fa;
3136 if (copy_from_user(&fa, (struct fsxattr __user *)arg, sizeof(fa)))
3139 /* Make sure caller has proper permission */
3140 if (!inode_owner_or_capable(inode))
3143 if (fa.fsx_xflags & ~F2FS_SUPPORTED_XFLAGS)
3146 iflags = f2fs_xflags_to_iflags(fa.fsx_xflags);
3147 if (f2fs_mask_flags(inode->i_mode, iflags) != iflags)
3150 err = mnt_want_write_file(filp);
3156 f2fs_fill_fsxattr(inode, &old_fa);
3157 err = vfs_ioc_fssetxattr_check(inode, &old_fa, &fa);
3161 err = f2fs_setflags_common(inode, iflags,
3162 f2fs_xflags_to_iflags(F2FS_SUPPORTED_XFLAGS));
3166 err = f2fs_ioc_setproject(filp, fa.fsx_projid);
3168 inode_unlock(inode);
3169 mnt_drop_write_file(filp);
3173 int f2fs_pin_file_control(struct inode *inode, bool inc)
3175 struct f2fs_inode_info *fi = F2FS_I(inode);
3176 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3178 /* Use i_gc_failures for normal file as a risk signal. */
3180 f2fs_i_gc_failures_write(inode,
3181 fi->i_gc_failures[GC_FAILURE_PIN] + 1);
3183 if (fi->i_gc_failures[GC_FAILURE_PIN] > sbi->gc_pin_file_threshold) {
3184 f2fs_warn(sbi, "%s: Enable GC = ino %lx after %x GC trials",
3185 __func__, inode->i_ino,
3186 fi->i_gc_failures[GC_FAILURE_PIN]);
3187 clear_inode_flag(inode, FI_PIN_FILE);
3193 static int f2fs_ioc_set_pin_file(struct file *filp, unsigned long arg)
3195 struct inode *inode = file_inode(filp);
3199 if (get_user(pin, (__u32 __user *)arg))
3202 if (!S_ISREG(inode->i_mode))
3205 if (f2fs_readonly(F2FS_I_SB(inode)->sb))
3208 ret = mnt_want_write_file(filp);
3214 if (f2fs_should_update_outplace(inode, NULL)) {
3220 clear_inode_flag(inode, FI_PIN_FILE);
3221 f2fs_i_gc_failures_write(inode, 0);
3225 if (f2fs_pin_file_control(inode, false)) {
3230 ret = f2fs_convert_inline_inode(inode);
3234 if (f2fs_disable_compressed_file(inode)) {
3239 set_inode_flag(inode, FI_PIN_FILE);
3240 ret = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3242 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3244 inode_unlock(inode);
3245 mnt_drop_write_file(filp);
3249 static int f2fs_ioc_get_pin_file(struct file *filp, unsigned long arg)
3251 struct inode *inode = file_inode(filp);
3254 if (is_inode_flag_set(inode, FI_PIN_FILE))
3255 pin = F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN];
3256 return put_user(pin, (u32 __user *)arg);
3259 int f2fs_precache_extents(struct inode *inode)
3261 struct f2fs_inode_info *fi = F2FS_I(inode);
3262 struct f2fs_map_blocks map;
3263 pgoff_t m_next_extent;
3267 if (is_inode_flag_set(inode, FI_NO_EXTENT))
3271 map.m_next_pgofs = NULL;
3272 map.m_next_extent = &m_next_extent;
3273 map.m_seg_type = NO_CHECK_TYPE;
3274 map.m_may_create = false;
3275 end = F2FS_I_SB(inode)->max_file_blocks;
3277 while (map.m_lblk < end) {
3278 map.m_len = end - map.m_lblk;
3280 down_write(&fi->i_gc_rwsem[WRITE]);
3281 err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
3282 up_write(&fi->i_gc_rwsem[WRITE]);
3286 map.m_lblk = m_next_extent;
3292 static int f2fs_ioc_precache_extents(struct file *filp, unsigned long arg)
3294 return f2fs_precache_extents(file_inode(filp));
3297 static int f2fs_ioc_resize_fs(struct file *filp, unsigned long arg)
3299 struct f2fs_sb_info *sbi = F2FS_I_SB(file_inode(filp));
3303 if (!capable(CAP_SYS_ADMIN))
3306 if (f2fs_readonly(sbi->sb))
3309 if (copy_from_user(&block_count, (void __user *)arg,
3310 sizeof(block_count)))
3313 ret = f2fs_resize_fs(sbi, block_count);
3318 static int f2fs_ioc_enable_verity(struct file *filp, unsigned long arg)
3320 struct inode *inode = file_inode(filp);
3322 f2fs_update_time(F2FS_I_SB(inode), REQ_TIME);
3324 if (!f2fs_sb_has_verity(F2FS_I_SB(inode))) {
3325 f2fs_warn(F2FS_I_SB(inode),
3326 "Can't enable fs-verity on inode %lu: the verity feature is not enabled on this filesystem.\n",
3331 return fsverity_ioctl_enable(filp, (const void __user *)arg);
3334 static int f2fs_ioc_measure_verity(struct file *filp, unsigned long arg)
3336 if (!f2fs_sb_has_verity(F2FS_I_SB(file_inode(filp))))
3339 return fsverity_ioctl_measure(filp, (void __user *)arg);
3342 static int f2fs_get_volume_name(struct file *filp, unsigned long arg)
3344 struct inode *inode = file_inode(filp);
3345 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3350 vbuf = f2fs_kzalloc(sbi, MAX_VOLUME_NAME, GFP_KERNEL);
3354 down_read(&sbi->sb_lock);
3355 count = utf16s_to_utf8s(sbi->raw_super->volume_name,
3356 ARRAY_SIZE(sbi->raw_super->volume_name),
3357 UTF16_LITTLE_ENDIAN, vbuf, MAX_VOLUME_NAME);
3358 up_read(&sbi->sb_lock);
3360 if (copy_to_user((char __user *)arg, vbuf,
3361 min(FSLABEL_MAX, count)))
3368 static int f2fs_set_volume_name(struct file *filp, unsigned long arg)
3370 struct inode *inode = file_inode(filp);
3371 struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
3375 if (!capable(CAP_SYS_ADMIN))
3378 vbuf = strndup_user((const char __user *)arg, FSLABEL_MAX);
3380 return PTR_ERR(vbuf);
3382 err = mnt_want_write_file(filp);
3386 down_write(&sbi->sb_lock);
3388 memset(sbi->raw_super->volume_name, 0,
3389 sizeof(sbi->raw_super->volume_name));
3390 utf8s_to_utf16s(vbuf, strlen(vbuf), UTF16_LITTLE_ENDIAN,
3391 sbi->raw_super->volume_name,
3392 ARRAY_SIZE(sbi->raw_super->volume_name));
3394 err = f2fs_commit_super(sbi, false);
3396 up_write(&sbi->sb_lock);
3398 mnt_drop_write_file(filp);
3404 long f2fs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
3406 if (unlikely(f2fs_cp_error(F2FS_I_SB(file_inode(filp)))))
3408 if (!f2fs_is_checkpoint_ready(F2FS_I_SB(file_inode(filp))))
3412 case F2FS_IOC_GETFLAGS:
3413 return f2fs_ioc_getflags(filp, arg);
3414 case F2FS_IOC_SETFLAGS:
3415 return f2fs_ioc_setflags(filp, arg);
3416 case F2FS_IOC_GETVERSION:
3417 return f2fs_ioc_getversion(filp, arg);
3418 case F2FS_IOC_START_ATOMIC_WRITE:
3419 return f2fs_ioc_start_atomic_write(filp);
3420 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
3421 return f2fs_ioc_commit_atomic_write(filp);
3422 case F2FS_IOC_START_VOLATILE_WRITE:
3423 return f2fs_ioc_start_volatile_write(filp);
3424 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
3425 return f2fs_ioc_release_volatile_write(filp);
3426 case F2FS_IOC_ABORT_VOLATILE_WRITE:
3427 return f2fs_ioc_abort_volatile_write(filp);
3428 case F2FS_IOC_SHUTDOWN:
3429 return f2fs_ioc_shutdown(filp, arg);
3431 return f2fs_ioc_fitrim(filp, arg);
3432 case F2FS_IOC_SET_ENCRYPTION_POLICY:
3433 return f2fs_ioc_set_encryption_policy(filp, arg);
3434 case F2FS_IOC_GET_ENCRYPTION_POLICY:
3435 return f2fs_ioc_get_encryption_policy(filp, arg);
3436 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
3437 return f2fs_ioc_get_encryption_pwsalt(filp, arg);
3438 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
3439 return f2fs_ioc_get_encryption_policy_ex(filp, arg);
3440 case FS_IOC_ADD_ENCRYPTION_KEY:
3441 return f2fs_ioc_add_encryption_key(filp, arg);
3442 case FS_IOC_REMOVE_ENCRYPTION_KEY:
3443 return f2fs_ioc_remove_encryption_key(filp, arg);
3444 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
3445 return f2fs_ioc_remove_encryption_key_all_users(filp, arg);
3446 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
3447 return f2fs_ioc_get_encryption_key_status(filp, arg);
3448 case FS_IOC_GET_ENCRYPTION_NONCE:
3449 return f2fs_ioc_get_encryption_nonce(filp, arg);
3450 case F2FS_IOC_GARBAGE_COLLECT:
3451 return f2fs_ioc_gc(filp, arg);
3452 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
3453 return f2fs_ioc_gc_range(filp, arg);
3454 case F2FS_IOC_WRITE_CHECKPOINT:
3455 return f2fs_ioc_write_checkpoint(filp, arg);
3456 case F2FS_IOC_DEFRAGMENT:
3457 return f2fs_ioc_defragment(filp, arg);
3458 case F2FS_IOC_MOVE_RANGE:
3459 return f2fs_ioc_move_range(filp, arg);
3460 case F2FS_IOC_FLUSH_DEVICE:
3461 return f2fs_ioc_flush_device(filp, arg);
3462 case F2FS_IOC_GET_FEATURES:
3463 return f2fs_ioc_get_features(filp, arg);
3464 case F2FS_IOC_FSGETXATTR:
3465 return f2fs_ioc_fsgetxattr(filp, arg);
3466 case F2FS_IOC_FSSETXATTR:
3467 return f2fs_ioc_fssetxattr(filp, arg);
3468 case F2FS_IOC_GET_PIN_FILE:
3469 return f2fs_ioc_get_pin_file(filp, arg);
3470 case F2FS_IOC_SET_PIN_FILE:
3471 return f2fs_ioc_set_pin_file(filp, arg);
3472 case F2FS_IOC_PRECACHE_EXTENTS:
3473 return f2fs_ioc_precache_extents(filp, arg);
3474 case F2FS_IOC_RESIZE_FS:
3475 return f2fs_ioc_resize_fs(filp, arg);
3476 case FS_IOC_ENABLE_VERITY:
3477 return f2fs_ioc_enable_verity(filp, arg);
3478 case FS_IOC_MEASURE_VERITY:
3479 return f2fs_ioc_measure_verity(filp, arg);
3480 case F2FS_IOC_GET_VOLUME_NAME:
3481 return f2fs_get_volume_name(filp, arg);
3482 case F2FS_IOC_SET_VOLUME_NAME:
3483 return f2fs_set_volume_name(filp, arg);
3489 static ssize_t f2fs_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
3491 struct file *file = iocb->ki_filp;
3492 struct inode *inode = file_inode(file);
3494 if (!f2fs_is_compress_backend_ready(inode))
3497 return generic_file_read_iter(iocb, iter);
3500 static ssize_t f2fs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
3502 struct file *file = iocb->ki_filp;
3503 struct inode *inode = file_inode(file);
3506 if (unlikely(f2fs_cp_error(F2FS_I_SB(inode)))) {
3511 if (!f2fs_is_compress_backend_ready(inode))
3514 if (iocb->ki_flags & IOCB_NOWAIT) {
3515 if (!inode_trylock(inode)) {
3523 ret = generic_write_checks(iocb, from);
3525 bool preallocated = false;
3526 size_t target_size = 0;
3529 if (iov_iter_fault_in_readable(from, iov_iter_count(from)))
3530 set_inode_flag(inode, FI_NO_PREALLOC);
3532 if ((iocb->ki_flags & IOCB_NOWAIT)) {
3533 if (!f2fs_overwrite_io(inode, iocb->ki_pos,
3534 iov_iter_count(from)) ||
3535 f2fs_has_inline_data(inode) ||
3536 f2fs_force_buffered_io(inode, iocb, from)) {
3537 clear_inode_flag(inode, FI_NO_PREALLOC);
3538 inode_unlock(inode);
3545 if (is_inode_flag_set(inode, FI_NO_PREALLOC))
3548 if (iocb->ki_flags & IOCB_DIRECT) {
3550 * Convert inline data for Direct I/O before entering
3553 err = f2fs_convert_inline_inode(inode);
3557 * If force_buffere_io() is true, we have to allocate
3558 * blocks all the time, since f2fs_direct_IO will fall
3559 * back to buffered IO.
3561 if (!f2fs_force_buffered_io(inode, iocb, from) &&
3562 allow_outplace_dio(inode, iocb, from))
3565 preallocated = true;
3566 target_size = iocb->ki_pos + iov_iter_count(from);
3568 err = f2fs_preallocate_blocks(iocb, from);
3571 clear_inode_flag(inode, FI_NO_PREALLOC);
3572 inode_unlock(inode);
3577 ret = __generic_file_write_iter(iocb, from);
3578 clear_inode_flag(inode, FI_NO_PREALLOC);
3580 /* if we couldn't write data, we should deallocate blocks. */
3581 if (preallocated && i_size_read(inode) < target_size)
3582 f2fs_truncate(inode);
3585 f2fs_update_iostat(F2FS_I_SB(inode), APP_WRITE_IO, ret);
3587 inode_unlock(inode);
3589 trace_f2fs_file_write_iter(inode, iocb->ki_pos,
3590 iov_iter_count(from), ret);
3592 ret = generic_write_sync(iocb, ret);
3596 #ifdef CONFIG_COMPAT
3597 long f2fs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
3600 case F2FS_IOC32_GETFLAGS:
3601 cmd = F2FS_IOC_GETFLAGS;
3603 case F2FS_IOC32_SETFLAGS:
3604 cmd = F2FS_IOC_SETFLAGS;
3606 case F2FS_IOC32_GETVERSION:
3607 cmd = F2FS_IOC_GETVERSION;
3609 case F2FS_IOC_START_ATOMIC_WRITE:
3610 case F2FS_IOC_COMMIT_ATOMIC_WRITE:
3611 case F2FS_IOC_START_VOLATILE_WRITE:
3612 case F2FS_IOC_RELEASE_VOLATILE_WRITE:
3613 case F2FS_IOC_ABORT_VOLATILE_WRITE:
3614 case F2FS_IOC_SHUTDOWN:
3616 case F2FS_IOC_SET_ENCRYPTION_POLICY:
3617 case F2FS_IOC_GET_ENCRYPTION_PWSALT:
3618 case F2FS_IOC_GET_ENCRYPTION_POLICY:
3619 case FS_IOC_GET_ENCRYPTION_POLICY_EX:
3620 case FS_IOC_ADD_ENCRYPTION_KEY:
3621 case FS_IOC_REMOVE_ENCRYPTION_KEY:
3622 case FS_IOC_REMOVE_ENCRYPTION_KEY_ALL_USERS:
3623 case FS_IOC_GET_ENCRYPTION_KEY_STATUS:
3624 case FS_IOC_GET_ENCRYPTION_NONCE:
3625 case F2FS_IOC_GARBAGE_COLLECT:
3626 case F2FS_IOC_GARBAGE_COLLECT_RANGE:
3627 case F2FS_IOC_WRITE_CHECKPOINT:
3628 case F2FS_IOC_DEFRAGMENT:
3629 case F2FS_IOC_MOVE_RANGE:
3630 case F2FS_IOC_FLUSH_DEVICE:
3631 case F2FS_IOC_GET_FEATURES:
3632 case F2FS_IOC_FSGETXATTR:
3633 case F2FS_IOC_FSSETXATTR:
3634 case F2FS_IOC_GET_PIN_FILE:
3635 case F2FS_IOC_SET_PIN_FILE:
3636 case F2FS_IOC_PRECACHE_EXTENTS:
3637 case F2FS_IOC_RESIZE_FS:
3638 case FS_IOC_ENABLE_VERITY:
3639 case FS_IOC_MEASURE_VERITY:
3640 case F2FS_IOC_GET_VOLUME_NAME:
3641 case F2FS_IOC_SET_VOLUME_NAME:
3644 return -ENOIOCTLCMD;
3646 return f2fs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
3650 const struct file_operations f2fs_file_operations = {
3651 .llseek = f2fs_llseek,
3652 .read_iter = f2fs_file_read_iter,
3653 .write_iter = f2fs_file_write_iter,
3654 .open = f2fs_file_open,
3655 .release = f2fs_release_file,
3656 .mmap = f2fs_file_mmap,
3657 .flush = f2fs_file_flush,
3658 .fsync = f2fs_sync_file,
3659 .fallocate = f2fs_fallocate,
3660 .unlocked_ioctl = f2fs_ioctl,
3661 #ifdef CONFIG_COMPAT
3662 .compat_ioctl = f2fs_compat_ioctl,
3664 .splice_read = generic_file_splice_read,
3665 .splice_write = iter_file_splice_write,