P: Adrian Hunter
M: ext-adrian.hunter@nokia.com
L: linux-mtd@lists.infradead.org
-T: git git://git.infradead.org/~dedekind/ubifs-2.6.git
+T: git git://git.infradead.org/ubifs-2.6.git
W: http://www.linux-mtd.infradead.org/doc/ubifs.html
S: Maintained
M: dedekind@infradead.org
W: http://www.linux-mtd.infradead.org/
L: linux-mtd@lists.infradead.org
-T: git git://git.infradead.org/~dedekind/ubi-2.6.git
+T: git git://git.infradead.org/ubi-2.6.git
S: Maintained
USB ACM DRIVER
int err;
struct ubifs_info *c = info;
- ubifs_msg("background thread \"%s\" started, PID %d",
- c->bgt_name, current->pid);
+ dbg_msg("background thread \"%s\" started, PID %d",
+ c->bgt_name, current->pid);
set_freezable();
while (1) {
if (c->key_fmt == UBIFS_SIMPLE_KEY_FMT) {
switch (type) {
case UBIFS_INO_KEY:
- sprintf(p, "(%lu, %s)", key_inum(c, key),
+ sprintf(p, "(%lu, %s)", (unsigned long)key_inum(c, key),
get_key_type(type));
break;
case UBIFS_DENT_KEY:
case UBIFS_XENT_KEY:
- sprintf(p, "(%lu, %s, %#08x)", key_inum(c, key),
+ sprintf(p, "(%lu, %s, %#08x)",
+ (unsigned long)key_inum(c, key),
get_key_type(type), key_hash(c, key));
break;
case UBIFS_DATA_KEY:
- sprintf(p, "(%lu, %s, %u)", key_inum(c, key),
+ sprintf(p, "(%lu, %s, %u)",
+ (unsigned long)key_inum(c, key),
get_key_type(type), key_block(c, key));
break;
case UBIFS_TRUN_KEY:
sprintf(p, "(%lu, %s)",
- key_inum(c, key), get_key_type(type));
+ (unsigned long)key_inum(c, key),
+ get_key_type(type));
break;
default:
sprintf(p, "(bad key type: %#08x, %#08x)",
le32_to_cpu(mst->ihead_lnum));
printk(KERN_DEBUG "\tihead_offs %u\n",
le32_to_cpu(mst->ihead_offs));
- printk(KERN_DEBUG "\tindex_size %u\n",
- le32_to_cpu(mst->index_size));
+ printk(KERN_DEBUG "\tindex_size %llu\n",
+ (unsigned long long)le64_to_cpu(mst->index_size));
printk(KERN_DEBUG "\tlpt_lnum %u\n",
le32_to_cpu(mst->lpt_lnum));
printk(KERN_DEBUG "\tlpt_offs %u\n",
if (inum > c->highest_inum) {
ubifs_err("too high inode number, max. is %lu",
- c->highest_inum);
+ (unsigned long)c->highest_inum);
return ERR_PTR(-EINVAL);
}
ino_key_init(c, &key, inum);
err = ubifs_lookup_level0(c, &key, &znode, &n);
if (!err) {
- ubifs_err("inode %lu not found in index", inum);
+ ubifs_err("inode %lu not found in index", (unsigned long)inum);
return ERR_PTR(-ENOENT);
} else if (err < 0) {
- ubifs_err("error %d while looking up inode %lu", err, inum);
+ ubifs_err("error %d while looking up inode %lu",
+ err, (unsigned long)inum);
return ERR_PTR(err);
}
zbr = &znode->zbranch[n];
if (zbr->len < UBIFS_INO_NODE_SZ) {
- ubifs_err("bad node %lu node length %d", inum, zbr->len);
+ ubifs_err("bad node %lu node length %d",
+ (unsigned long)inum, zbr->len);
return ERR_PTR(-EINVAL);
}
kfree(ino);
if (IS_ERR(fscki)) {
ubifs_err("error %ld while adding inode %lu node",
- PTR_ERR(fscki), inum);
+ PTR_ERR(fscki), (unsigned long)inum);
return fscki;
}
if (IS_ERR(fscki)) {
err = PTR_ERR(fscki);
ubifs_err("error %d while processing data node and "
- "trying to find inode node %lu", err, inum);
+ "trying to find inode node %lu",
+ err, (unsigned long)inum);
goto out_dump;
}
if (IS_ERR(fscki)) {
err = PTR_ERR(fscki);
ubifs_err("error %d while processing entry node and "
- "trying to find inode node %lu", err, inum);
+ "trying to find inode node %lu",
+ err, (unsigned long)inum);
goto out_dump;
}
err = PTR_ERR(fscki);
ubifs_err("error %d while processing entry node and "
"trying to find parent inode node %lu",
- err, inum);
+ err, (unsigned long)inum);
goto out_dump;
}
fscki->references != 1) {
ubifs_err("directory inode %lu has %d "
"direntries which refer it, but "
- "should be 1", fscki->inum,
+ "should be 1",
+ (unsigned long)fscki->inum,
fscki->references);
goto out_dump;
}
fscki->references != 0) {
ubifs_err("root inode %lu has non-zero (%d) "
"direntries which refer it",
- fscki->inum, fscki->references);
+ (unsigned long)fscki->inum,
+ fscki->references);
goto out_dump;
}
if (fscki->calc_sz != fscki->size) {
ubifs_err("directory inode %lu size is %lld, "
"but calculated size is %lld",
- fscki->inum, fscki->size,
- fscki->calc_sz);
+ (unsigned long)fscki->inum,
+ fscki->size, fscki->calc_sz);
goto out_dump;
}
if (fscki->calc_cnt != fscki->nlink) {
ubifs_err("directory inode %lu nlink is %d, "
"but calculated nlink is %d",
- fscki->inum, fscki->nlink,
- fscki->calc_cnt);
+ (unsigned long)fscki->inum,
+ fscki->nlink, fscki->calc_cnt);
goto out_dump;
}
} else {
if (fscki->references != fscki->nlink) {
ubifs_err("inode %lu nlink is %d, but "
- "calculated nlink is %d", fscki->inum,
+ "calculated nlink is %d",
+ (unsigned long)fscki->inum,
fscki->nlink, fscki->references);
goto out_dump;
}
if (fscki->xattr_sz != fscki->calc_xsz) {
ubifs_err("inode %lu has xattr size %u, but "
"calculated size is %lld",
- fscki->inum, fscki->xattr_sz,
+ (unsigned long)fscki->inum, fscki->xattr_sz,
fscki->calc_xsz);
goto out_dump;
}
if (fscki->xattr_cnt != fscki->calc_xcnt) {
ubifs_err("inode %lu has %u xattrs, but "
- "calculated count is %lld", fscki->inum,
+ "calculated count is %lld",
+ (unsigned long)fscki->inum,
fscki->xattr_cnt, fscki->calc_xcnt);
goto out_dump;
}
if (fscki->xattr_nms != fscki->calc_xnms) {
ubifs_err("inode %lu has xattr names' size %u, but "
"calculated names' size is %lld",
- fscki->inum, fscki->xattr_nms,
+ (unsigned long)fscki->inum, fscki->xattr_nms,
fscki->calc_xnms);
goto out_dump;
}
ino_key_init(c, &key, fscki->inum);
err = ubifs_lookup_level0(c, &key, &znode, &n);
if (!err) {
- ubifs_err("inode %lu not found in index", fscki->inum);
+ ubifs_err("inode %lu not found in index",
+ (unsigned long)fscki->inum);
return -ENOENT;
} else if (err < 0) {
ubifs_err("error %d while looking up inode %lu",
- err, fscki->inum);
+ err, (unsigned long)fscki->inum);
return err;
}
}
ubifs_msg("dump of the inode %lu sitting in LEB %d:%d",
- fscki->inum, zbr->lnum, zbr->offs);
+ (unsigned long)fscki->inum, zbr->lnum, zbr->offs);
dbg_dump_node(c, ino);
kfree(ino);
return -EINVAL;
return ERR_PTR(-EINVAL);
}
ubifs_warn("running out of inode numbers (current %lu, max %d)",
- c->highest_inum, INUM_WATERMARK);
+ (unsigned long)c->highest_inum, INUM_WATERMARK);
}
inode->i_ino = ++c->highest_inum;
dbg_gen("feed '%s', ino %llu, new f_pos %#x",
dent->name, (unsigned long long)le64_to_cpu(dent->inum),
key_hash_flash(c, &dent->key));
- ubifs_assert(dent->ch.sqnum > ubifs_inode(dir)->creat_sqnum);
+ ubifs_assert(le64_to_cpu(dent->ch.sqnum) >
+ ubifs_inode(dir)->creat_sqnum);
nm.len = le16_to_cpu(dent->nlen);
over = filldir(dirent, dent->name, nm.len, file->f_pos,
return err;
}
- ubifs_assert(dn->ch.sqnum > ubifs_inode(inode)->creat_sqnum);
+ ubifs_assert(le64_to_cpu(dn->ch.sqnum) > ubifs_inode(inode)->creat_sqnum);
len = le32_to_cpu(dn->size);
if (len <= 0 || len > UBIFS_BLOCK_SIZE)
dn = bu->buf + (bu->zbranch[nn].offs - offs);
- ubifs_assert(dn->ch.sqnum >
+ ubifs_assert(le64_to_cpu(dn->ch.sqnum) >
ubifs_inode(inode)->creat_sqnum);
len = le32_to_cpu(dn->size);
/**
* ubifs_do_bulk_read - do bulk-read.
* @c: UBIFS file-system description object
- * @page1: first page
+ * @bu: bulk-read information
+ * @page1: first page to read
*
* This function returns %1 if the bulk-read is done, otherwise %0 is returned.
*/
-static int ubifs_do_bulk_read(struct ubifs_info *c, struct page *page1)
+static int ubifs_do_bulk_read(struct ubifs_info *c, struct bu_info *bu,
+ struct page *page1)
{
pgoff_t offset = page1->index, end_index;
struct address_space *mapping = page1->mapping;
struct inode *inode = mapping->host;
struct ubifs_inode *ui = ubifs_inode(inode);
- struct bu_info *bu;
int err, page_idx, page_cnt, ret = 0, n = 0;
+ int allocate = bu->buf ? 0 : 1;
loff_t isize;
- bu = kmalloc(sizeof(struct bu_info), GFP_NOFS);
- if (!bu)
- return 0;
-
- bu->buf_len = c->bulk_read_buf_size;
- bu->buf = kmalloc(bu->buf_len, GFP_NOFS);
- if (!bu->buf)
- goto out_free;
-
- data_key_init(c, &bu->key, inode->i_ino,
- offset << UBIFS_BLOCKS_PER_PAGE_SHIFT);
-
err = ubifs_tnc_get_bu_keys(c, bu);
if (err)
goto out_warn;
* together. If all the pages were like this, bulk-read would
* reduce performance, so we turn it off for a while.
*/
- ui->read_in_a_row = 0;
- ui->bulk_read = 0;
- goto out_free;
+ goto out_bu_off;
}
if (bu->cnt) {
+ if (allocate) {
+ /*
+ * Allocate bulk-read buffer depending on how many data
+ * nodes we are going to read.
+ */
+ bu->buf_len = bu->zbranch[bu->cnt - 1].offs +
+ bu->zbranch[bu->cnt - 1].len -
+ bu->zbranch[0].offs;
+ ubifs_assert(bu->buf_len > 0);
+ ubifs_assert(bu->buf_len <= c->leb_size);
+ bu->buf = kmalloc(bu->buf_len, GFP_NOFS | __GFP_NOWARN);
+ if (!bu->buf)
+ goto out_bu_off;
+ }
+
err = ubifs_tnc_bulk_read(c, bu);
if (err)
goto out_warn;
ui->last_page_read = offset + page_idx - 1;
out_free:
- kfree(bu->buf);
- kfree(bu);
+ if (allocate)
+ kfree(bu->buf);
return ret;
out_warn:
ubifs_warn("ignoring error %d and skipping bulk-read", err);
goto out_free;
+
+out_bu_off:
+ ui->read_in_a_row = ui->bulk_read = 0;
+ goto out_free;
}
/**
struct ubifs_info *c = inode->i_sb->s_fs_info;
struct ubifs_inode *ui = ubifs_inode(inode);
pgoff_t index = page->index, last_page_read = ui->last_page_read;
- int ret = 0;
+ struct bu_info *bu;
+ int err = 0, allocated = 0;
ui->last_page_read = index;
-
if (!c->bulk_read)
return 0;
+
/*
- * Bulk-read is protected by ui_mutex, but it is an optimization, so
- * don't bother if we cannot lock the mutex.
+ * Bulk-read is protected by @ui->ui_mutex, but it is an optimization,
+ * so don't bother if we cannot lock the mutex.
*/
if (!mutex_trylock(&ui->ui_mutex))
return 0;
+
if (index != last_page_read + 1) {
/* Turn off bulk-read if we stop reading sequentially */
ui->read_in_a_row = 1;
ui->bulk_read = 0;
goto out_unlock;
}
+
if (!ui->bulk_read) {
ui->read_in_a_row += 1;
if (ui->read_in_a_row < 3)
/* Three reads in a row, so switch on bulk-read */
ui->bulk_read = 1;
}
- ret = ubifs_do_bulk_read(c, page);
+
+ /*
+ * If possible, try to use pre-allocated bulk-read information, which
+ * is protected by @c->bu_mutex.
+ */
+ if (mutex_trylock(&c->bu_mutex))
+ bu = &c->bu;
+ else {
+ bu = kmalloc(sizeof(struct bu_info), GFP_NOFS | __GFP_NOWARN);
+ if (!bu)
+ goto out_unlock;
+
+ bu->buf = NULL;
+ allocated = 1;
+ }
+
+ bu->buf_len = c->max_bu_buf_len;
+ data_key_init(c, &bu->key, inode->i_ino,
+ page->index << UBIFS_BLOCKS_PER_PAGE_SHIFT);
+ err = ubifs_do_bulk_read(c, bu, page);
+
+ if (!allocated)
+ mutex_unlock(&c->bu_mutex);
+ else
+ kfree(bu);
+
out_unlock:
mutex_unlock(&ui->ui_mutex);
- return ret;
+ return err;
}
static int ubifs_readpage(struct file *file, struct page *page)
int dlen = UBIFS_DATA_NODE_SZ + UBIFS_BLOCK_SIZE * WORST_COMPR_FACTOR;
struct ubifs_inode *ui = ubifs_inode(inode);
- dbg_jnl("ino %lu, blk %u, len %d, key %s", key_inum(c, key),
- key_block(c, key), len, DBGKEY(key));
+ dbg_jnl("ino %lu, blk %u, len %d, key %s",
+ (unsigned long)key_inum(c, key), key_block(c, key), len,
+ DBGKEY(key));
ubifs_assert(len <= UBIFS_BLOCK_SIZE);
data = kmalloc(dlen, GFP_NOFS);
ino_t inum = inode->i_ino;
unsigned int blk;
- dbg_jnl("ino %lu, size %lld -> %lld", inum, old_size, new_size);
+ dbg_jnl("ino %lu, size %lld -> %lld",
+ (unsigned long)inum, old_size, new_size);
ubifs_assert(!ui->data_len);
ubifs_assert(S_ISREG(inode->i_mode));
ubifs_assert(mutex_is_locked(&ui->ui_mutex));
{
const union ubifs_key *key = k;
- return le32_to_cpu(key->u32[1]) >> UBIFS_S_KEY_BLOCK_BITS;
+ return le32_to_cpu(key->j32[1]) >> UBIFS_S_KEY_BLOCK_BITS;
}
/**
{
const union ubifs_key *key = k;
- return le32_to_cpu(key->u32[1]) & UBIFS_S_KEY_BLOCK_MASK;
+ return le32_to_cpu(key->j32[1]) & UBIFS_S_KEY_BLOCK_MASK;
}
/**
/* We assume here that LEB zero is never an LPT LEB */
if (nnode->nbranch[iip].lnum)
return ubifs_get_pnode(c, nnode, iip);
- else
- return NULL;
}
/* Go up while can't go right */
list_add_tail(&orphan->list, &c->orph_list);
list_add_tail(&orphan->new_list, &c->orph_new);
spin_unlock(&c->orphan_lock);
- dbg_gen("ino %lu", inum);
+ dbg_gen("ino %lu", (unsigned long)inum);
return 0;
}
else {
if (o->dnext) {
spin_unlock(&c->orphan_lock);
- dbg_gen("deleted twice ino %lu", inum);
+ dbg_gen("deleted twice ino %lu",
+ (unsigned long)inum);
return;
}
if (o->cnext) {
o->dnext = c->orph_dnext;
c->orph_dnext = o;
spin_unlock(&c->orphan_lock);
- dbg_gen("delete later ino %lu", inum);
+ dbg_gen("delete later ino %lu",
+ (unsigned long)inum);
return;
}
rb_erase(p, &c->orph_tree);
}
spin_unlock(&c->orphan_lock);
kfree(o);
- dbg_gen("inum %lu", inum);
+ dbg_gen("inum %lu", (unsigned long)inum);
return;
}
}
spin_unlock(&c->orphan_lock);
- dbg_err("missing orphan ino %lu", inum);
+ dbg_err("missing orphan ino %lu", (unsigned long)inum);
dbg_dump_stack();
}
rb_erase(&orphan->rb, &c->orph_tree);
list_del(&orphan->list);
c->tot_orphans -= 1;
- dbg_gen("deleting orphan ino %lu", orphan->inum);
+ dbg_gen("deleting orphan ino %lu", (unsigned long)orphan->inum);
kfree(orphan);
}
c->orph_dnext = NULL;
list_add_tail(&orphan->list, &c->orph_list);
orphan->dnext = c->orph_dnext;
c->orph_dnext = orphan;
- dbg_mnt("ino %lu, new %d, tot %d",
- inum, c->new_orphans, c->tot_orphans);
+ dbg_mnt("ino %lu, new %d, tot %d", (unsigned long)inum,
+ c->new_orphans, c->tot_orphans);
return 0;
}
n = (le32_to_cpu(orph->ch.len) - UBIFS_ORPH_NODE_SZ) >> 3;
for (i = 0; i < n; i++) {
inum = le64_to_cpu(orph->inos[i]);
- dbg_rcvry("deleting orphaned inode %lu", inum);
+ dbg_rcvry("deleting orphaned inode %lu",
+ (unsigned long)inum);
err = ubifs_tnc_remove_ino(c, inum);
if (err)
return err;
if (inum != ci->last_ino) {
/* Lowest node type is the inode node, so it comes first */
if (key_type(c, &zbr->key) != UBIFS_INO_KEY)
- ubifs_err("found orphan node ino %lu, type %d", inum,
- key_type(c, &zbr->key));
+ ubifs_err("found orphan node ino %lu, type %d",
+ (unsigned long)inum, key_type(c, &zbr->key));
ci->last_ino = inum;
ci->tot_inos += 1;
err = ubifs_tnc_read_node(c, zbr, ci->node);
/* Must be recorded as an orphan */
if (!dbg_find_check_orphan(&ci->root, inum) &&
!dbg_find_orphan(c, inum)) {
- ubifs_err("missing orphan, ino %lu", inum);
+ ubifs_err("missing orphan, ino %lu",
+ (unsigned long)inum);
ci->missing += 1;
}
}
struct ubifs_mst_node *mst)
{
int err = 0, lnum = UBIFS_MST_LNUM, sz = c->mst_node_alsz;
- uint32_t save_flags;
+ __le32 save_flags;
dbg_rcvry("recovery");
save_flags = mst->flags;
- mst->flags = cpu_to_le32(le32_to_cpu(mst->flags) | UBIFS_MST_RCVRY);
+ mst->flags |= cpu_to_le32(UBIFS_MST_RCVRY);
ubifs_prepare_node(c, mst, UBIFS_MST_NODE_SZ, 1);
err = ubi_leb_change(c->ubi, lnum, mst, sz, UBI_SHORTTERM);
err = ubi_leb_change(c->ubi, lnum, c->sbuf, len, UBI_UNKNOWN);
if (err)
goto out;
- dbg_rcvry("inode %lu at %d:%d size %lld -> %lld ", e->inum, lnum, offs,
- i_size, e->d_size);
+ dbg_rcvry("inode %lu at %d:%d size %lld -> %lld ",
+ (unsigned long)e->inum, lnum, offs, i_size, e->d_size);
return 0;
out:
ubifs_warn("inode %lu failed to fix size %lld -> %lld error %d",
- e->inum, e->i_size, e->d_size, err);
+ (unsigned long)e->inum, e->i_size, e->d_size, err);
return err;
}
return err;
if (err == -ENOENT) {
/* Remove data nodes that have no inode */
- dbg_rcvry("removing ino %lu", e->inum);
+ dbg_rcvry("removing ino %lu",
+ (unsigned long)e->inum);
err = ubifs_tnc_remove_ino(c, e->inum);
if (err)
return err;
return PTR_ERR(inode);
if (inode->i_size < e->d_size) {
dbg_rcvry("ino %lu size %lld -> %lld",
- e->inum, e->d_size,
- inode->i_size);
+ (unsigned long)e->inum,
+ e->d_size, inode->i_size);
inode->i_size = e->d_size;
ubifs_inode(inode)->ui_size = e->d_size;
e->inode = inode;
ubifs_assert(c->bud_bytes <= c->max_bud_bytes || c->need_recovery);
dbg_mnt("finished, log head LEB %d:%d, max_sqnum %llu, "
"highest_inum %lu", c->lhead_lnum, c->lhead_offs, c->max_sqnum,
- c->highest_inum);
+ (unsigned long)c->highest_inum);
out:
destroy_replay_tree(c);
destroy_bud_list(c);
int lpt_lebs, lpt_first, orph_lebs, big_lpt, ino_waste, sup_flags = 0;
int min_leb_cnt = UBIFS_MIN_LEB_CNT;
uint64_t tmp64, main_bytes;
+ __le64 tmp_le64;
/* Some functions called from here depend on the @c->key_len filed */
c->key_len = UBIFS_SK_LEN;
ino->ch.node_type = UBIFS_INO_NODE;
ino->creat_sqnum = cpu_to_le64(++c->max_sqnum);
ino->nlink = cpu_to_le32(2);
- tmp = cpu_to_le64(CURRENT_TIME_SEC.tv_sec);
- ino->atime_sec = tmp;
- ino->ctime_sec = tmp;
- ino->mtime_sec = tmp;
+ tmp_le64 = cpu_to_le64(CURRENT_TIME_SEC.tv_sec);
+ ino->atime_sec = tmp_le64;
+ ino->ctime_sec = tmp_le64;
+ ino->mtime_sec = tmp_le64;
ino->atime_nsec = 0;
ino->ctime_nsec = 0;
ino->mtime_nsec = 0;
#include <linux/mount.h>
#include "ubifs.h"
+/*
+ * Maximum amount of memory we may 'kmalloc()' without worrying that we are
+ * allocating too much.
+ */
+#define UBIFS_KMALLOC_OK (128*1024)
+
/* Slab cache for UBIFS inodes */
struct kmem_cache *ubifs_inode_slab;
* calculations when reporting free space.
*/
c->leb_overhead = c->leb_size % UBIFS_MAX_DATA_NODE_SZ;
- /* Buffer size for bulk-reads */
- c->bulk_read_buf_size = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ;
- if (c->bulk_read_buf_size > c->leb_size)
- c->bulk_read_buf_size = c->leb_size;
- if (c->bulk_read_buf_size > 128 * 1024) {
- /* Check if we can kmalloc more than 128KiB */
- void *try = kmalloc(c->bulk_read_buf_size, GFP_KERNEL);
- kfree(try);
- if (!try)
- c->bulk_read_buf_size = 128 * 1024;
- }
+ /* Buffer size for bulk-reads */
+ c->max_bu_buf_len = UBIFS_MAX_BULK_READ * UBIFS_MAX_DATA_NODE_SZ;
+ if (c->max_bu_buf_len > c->leb_size)
+ c->max_bu_buf_len = c->leb_size;
return 0;
}
free_buds(c);
}
+/**
+ * bu_init - initialize bulk-read information.
+ * @c: UBIFS file-system description object
+ */
+static void bu_init(struct ubifs_info *c)
+{
+ ubifs_assert(c->bulk_read == 1);
+
+ if (c->bu.buf)
+ return; /* Already initialized */
+
+again:
+ c->bu.buf = kmalloc(c->max_bu_buf_len, GFP_KERNEL | __GFP_NOWARN);
+ if (!c->bu.buf) {
+ if (c->max_bu_buf_len > UBIFS_KMALLOC_OK) {
+ c->max_bu_buf_len = UBIFS_KMALLOC_OK;
+ goto again;
+ }
+
+ /* Just disable bulk-read */
+ ubifs_warn("Cannot allocate %d bytes of memory for bulk-read, "
+ "disabling it", c->max_bu_buf_len);
+ c->mount_opts.bulk_read = 1;
+ c->bulk_read = 0;
+ return;
+ }
+}
+
/**
* mount_ubifs - mount UBIFS file-system.
* @c: UBIFS file-system description object
goto out_free;
}
+ if (c->bulk_read == 1)
+ bu_init(c);
+
+ /*
+ * We have to check all CRCs, even for data nodes, when we mount the FS
+ * (specifically, when we are replaying).
+ */
c->always_chk_crc = 1;
err = ubifs_read_superblock(c);
out_dereg:
dbg_failure_mode_deregistration(c);
out_free:
+ kfree(c->bu.buf);
vfree(c->ileb_buf);
vfree(c->sbuf);
kfree(c->bottom_up_buf);
kfree(c->cbuf);
kfree(c->rcvrd_mst_node);
kfree(c->mst_node);
+ kfree(c->bu.buf);
+ vfree(c->ileb_buf);
vfree(c->sbuf);
kfree(c->bottom_up_buf);
UBIFS_DBG(vfree(c->dbg_buf));
- vfree(c->ileb_buf);
dbg_failure_mode_deregistration(c);
}
ubifs_err("invalid or unknown remount parameter");
return err;
}
+
if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
err = ubifs_remount_rw(c);
if (err)
} else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY))
ubifs_remount_ro(c);
+ if (c->bulk_read == 1)
+ bu_init(c);
+ else {
+ dbg_gen("disable bulk-read");
+ kfree(c->bu.buf);
+ c->bu.buf = NULL;
+ }
+
return 0;
}
mutex_init(&c->log_mutex);
mutex_init(&c->mst_mutex);
mutex_init(&c->umount_mutex);
+ mutex_init(&c->bu_mutex);
init_waitqueue_head(&c->cmt_wq);
c->buds = RB_ROOT;
c->old_idx = RB_ROOT;
* @bu: bulk-read parameters and results
*
* Lookup consecutive data node keys for the same inode that reside
- * consecutively in the same LEB.
+ * consecutively in the same LEB. This function returns zero in case of success
+ * and a negative error code in case of failure.
+ *
+ * Note, if the bulk-read buffer length (@bu->buf_len) is known, this function
+ * makes sure bulk-read nodes fit the buffer. Otherwise, this function prepares
+ * maxumum possible amount of nodes for bulk-read.
*/
int ubifs_tnc_get_bu_keys(struct ubifs_info *c, struct bu_info *bu)
{
struct ubifs_dent_node *xent, *pxent = NULL;
struct qstr nm = { .name = NULL };
- dbg_tnc("ino %lu", inum);
+ dbg_tnc("ino %lu", (unsigned long)inum);
/*
* Walk all extended attribute entries and remove them together with
}
xattr_inum = le64_to_cpu(xent->inum);
- dbg_tnc("xent '%s', ino %lu", xent->name, xattr_inum);
+ dbg_tnc("xent '%s', ino %lu", xent->name,
+ (unsigned long)xattr_inum);
nm.name = xent->name;
nm.len = le16_to_cpu(xent->nlen);
};
/**
- * struct bu_info - bulk-read information
+ * struct bu_info - bulk-read information.
* @key: first data node key
* @zbranch: zbranches of data nodes to bulk read
* @buf: buffer to read into
* @mst_node: master node
* @mst_offs: offset of valid master node
* @mst_mutex: protects the master node area, @mst_node, and @mst_offs
- * @bulk_read_buf_size: buffer size for bulk-reads
+ *
+ * @max_bu_buf_len: maximum bulk-read buffer length
+ * @bu_mutex: protects the pre-allocated bulk-read buffer and @c->bu
+ * @bu: pre-allocated bulk-read information
*
* @log_lebs: number of logical eraseblocks in the log
* @log_bytes: log size in bytes
struct ubifs_mst_node *mst_node;
int mst_offs;
struct mutex mst_mutex;
- int bulk_read_buf_size;
+
+ int max_bu_buf_len;
+ struct mutex bu_mutex;
+ struct bu_info bu;
int log_lebs;
long long log_bytes;
projects / linux-2.6-block.git / commitdiff