int i;
int will_compress;
int compress_type = root->fs_info->compress_type;
+ int redirty = 0;
/* if this is a small write inside eof, kick off a defrag */
if ((end - start + 1) < 16 * 1024 &&
if (BTRFS_I(inode)->force_compress)
compress_type = BTRFS_I(inode)->force_compress;
+ /*
+ * we need to call clear_page_dirty_for_io on each
+ * page in the range. Otherwise applications with the file
+ * mmap'd can wander in and change the page contents while
+ * we are compressing them.
+ *
+ * If the compression fails for any reason, we set the pages
+ * dirty again later on.
+ */
+ extent_range_clear_dirty_for_io(inode, start, end);
+ redirty = 1;
ret = btrfs_compress_pages(compress_type,
inode->i_mapping, start,
total_compressed, pages,
__set_page_dirty_nobuffers(locked_page);
/* unlocked later on in the async handlers */
}
+ if (redirty)
+ extent_range_redirty_for_io(inode, start, end);
add_async_extent(async_cow, start, end - start + 1,
0, NULL, 0, BTRFS_COMPRESS_NONE);
*num_added += 1;
struct btrfs_ordered_sum *sum;
list_for_each_entry(sum, list, list) {
+ trans->adding_csums = 1;
btrfs_csum_file_blocks(trans,
BTRFS_I(inode)->root->fs_info->csum_root, sum);
+ trans->adding_csums = 0;
}
return 0;
}
int ret;
struct btrfs_root *root = BTRFS_I(inode)->root;
u32 csum = ~(u32)0;
+ static DEFINE_RATELIMIT_STATE(_rs, DEFAULT_RATELIMIT_INTERVAL,
+ DEFAULT_RATELIMIT_BURST);
if (PageChecked(page)) {
ClearPageChecked(page);
if (ret)
goto zeroit;
- csum = btrfs_csum_data(root, kaddr + offset, csum, end - start + 1);
+ csum = btrfs_csum_data(kaddr + offset, csum, end - start + 1);
btrfs_csum_final(csum, (char *)&csum);
if (csum != private)
goto zeroit;
return 0;
zeroit:
- printk_ratelimited(KERN_INFO "btrfs csum failed ino %llu off %llu csum %u "
- "private %llu\n",
- (unsigned long long)btrfs_ino(page->mapping->host),
- (unsigned long long)start, csum,
- (unsigned long long)private);
+ if (__ratelimit(&_rs))
+ btrfs_info(root->fs_info, "csum failed ino %llu off %llu csum %u private %llu",
+ (unsigned long long)btrfs_ino(page->mapping->host),
+ (unsigned long long)start, csum,
+ (unsigned long long)private);
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
kunmap_atomic(kaddr);
*/
if (found_key.offset == last_objectid) {
- printk(KERN_ERR "btrfs: Error removing orphan entry, "
- "stopping orphan cleanup\n");
+ btrfs_err(root->fs_info,
+ "Error removing orphan entry, stopping orphan cleanup");
ret = -EINVAL;
goto out;
}
ret = PTR_ERR(trans);
goto out;
}
- printk(KERN_ERR "auto deleting %Lu\n",
- found_key.objectid);
+ btrfs_debug(root->fs_info, "auto deleting %Lu",
+ found_key.objectid);
ret = btrfs_del_orphan_item(trans, root,
found_key.objectid);
BUG_ON(ret); /* -ENOMEM or corruption (JDM: Recheck) */
}
if (nr_unlink)
- printk(KERN_INFO "btrfs: unlinked %d orphans\n", nr_unlink);
+ btrfs_info(root->fs_info, "unlinked %d orphans", nr_unlink);
if (nr_truncate)
- printk(KERN_INFO "btrfs: truncated %d orphans\n", nr_truncate);
+ btrfs_info(root->fs_info, "truncated %d orphans", nr_truncate);
out:
if (ret)
- printk(KERN_CRIT "btrfs: could not do orphan cleanup %d\n", ret);
+ btrfs_crit(root->fs_info,
+ "could not do orphan cleanup %d", ret);
btrfs_free_path(path);
return ret;
}
ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
dir_ino, &index);
if (ret) {
- printk(KERN_INFO "btrfs failed to delete reference to %.*s, "
- "inode %llu parent %llu\n", name_len, name,
- (unsigned long long)ino, (unsigned long long)dir_ino);
+ btrfs_info(root->fs_info,
+ "failed to delete reference to %.*s, inode %llu parent %llu",
+ name_len, name,
+ (unsigned long long)ino, (unsigned long long)dir_ino);
btrfs_abort_transaction(trans, root, ret);
goto err;
}
eb = path->nodes[level];
if (!btrfs_block_can_be_shared(root, eb))
continue;
- ret = btrfs_lookup_extent_info(NULL, root, eb->start, eb->len,
+ ret = btrfs_lookup_extent_info(NULL, root, eb->start, level, 1,
&refs, NULL);
if (refs > 1)
return 1;
* 1 for the dir item
* 1 for the dir index
* 1 for the inode ref
- * 1 for the inode ref in the tree log
- * 2 for the dir entries in the log
* 1 for the inode
*/
- trans = btrfs_start_transaction(root, 8);
+ trans = btrfs_start_transaction(root, 5);
if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
return trans;
ret = btrfs_block_rsv_migrate(global_rsv, rsv, min_size);
if (ret) {
- printk(KERN_WARNING "Could not get space for a "
- "delete, will truncate on mount %d\n", ret);
+ btrfs_warn(root->fs_info,
+ "Could not get space for a delete, will truncate on mount %d",
+ ret);
btrfs_orphan_del(NULL, inode);
btrfs_free_block_rsv(root, rsv);
goto no_delete;
insert:
btrfs_release_path(path);
if (em->start > start || extent_map_end(em) <= start) {
- printk(KERN_ERR "Btrfs: bad extent! em: [%llu %llu] passed "
- "[%llu %llu]\n", (unsigned long long)em->start,
- (unsigned long long)em->len,
- (unsigned long long)start,
- (unsigned long long)len);
+ btrfs_err(root->fs_info, "bad extent! em: [%llu %llu] passed [%llu %llu]",
+ (unsigned long long)em->start,
+ (unsigned long long)em->len,
+ (unsigned long long)start,
+ (unsigned long long)len);
err = -EIO;
goto out;
}
goto failed;
local_irq_save(flags);
kaddr = kmap_atomic(page);
- csum = btrfs_csum_data(root, kaddr + bvec->bv_offset,
+ csum = btrfs_csum_data(kaddr + bvec->bv_offset,
csum, bvec->bv_len);
btrfs_csum_final(csum, (char *)&csum);
kunmap_atomic(kaddr);
flush_dcache_page(bvec->bv_page);
if (csum != private) {
failed:
- printk(KERN_ERR "btrfs csum failed ino %llu off"
- " %llu csum %u private %u\n",
- (unsigned long long)btrfs_ino(inode),
- (unsigned long long)start,
- csum, (unsigned)private);
+ btrfs_err(root->fs_info, "csum failed ino %llu off %llu csum %u private %u",
+ (unsigned long long)btrfs_ino(inode),
+ (unsigned long long)start,
+ csum, (unsigned)private);
err = -EIO;
}
}
if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM,
&BTRFS_I(inode)->runtime_flags)) {
- printk(KERN_INFO "BTRFS: inode %llu still on the orphan list\n",
- (unsigned long long)btrfs_ino(inode));
+ btrfs_info(root->fs_info, "inode %llu still on the orphan list",
+ (unsigned long long)btrfs_ino(inode));
atomic_dec(&root->orphan_inodes);
}
if (!ordered)
break;
else {
- printk(KERN_ERR "btrfs found ordered "
- "extent %llu %llu on inode cleanup\n",
- (unsigned long long)ordered->file_offset,
- (unsigned long long)ordered->len);
+ btrfs_err(root->fs_info, "found ordered extent %llu %llu on inode cleanup",
+ (unsigned long long)ordered->file_offset,
+ (unsigned long long)ordered->len);
btrfs_remove_ordered_extent(inode, ordered);
btrfs_put_ordered_extent(ordered);
btrfs_put_ordered_extent(ordered);
* inodes. So 5 * 2 is 10, plus 1 for the new link, so 11 total items
* should cover the worst case number of items we'll modify.
*/
- trans = btrfs_start_transaction(root, 20);
+ trans = btrfs_start_transaction(root, 11);
if (IS_ERR(trans)) {
ret = PTR_ERR(trans);
goto out_notrans;
projects / linux-2.6-block.git / blobdiff