summaryrefslogtreecommitdiffstats
path: root/fs/ext4
diff options
context:
space:
mode:
Diffstat (limited to 'fs/ext4')
-rw-r--r--fs/ext4/balloc.c10
-rw-r--r--fs/ext4/ext4.h9
-rw-r--r--fs/ext4/extents.c2
-rw-r--r--fs/ext4/ialloc.c7
-rw-r--r--fs/ext4/inode.c47
-rw-r--r--fs/ext4/mballoc.c34
-rw-r--r--fs/ext4/migrate.c8
-rw-r--r--fs/ext4/namei.c21
-rw-r--r--fs/ext4/resize.c3
-rw-r--r--fs/ext4/super.c12
10 files changed, 102 insertions, 51 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 6bba06b09dd..de9459b4cb9 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -609,7 +609,9 @@ int ext4_claim_free_blocks(struct ext4_sb_info *sbi,
*/
int ext4_should_retry_alloc(struct super_block *sb, int *retries)
{
- if (!ext4_has_free_blocks(EXT4_SB(sb), 1) || (*retries)++ > 3)
+ if (!ext4_has_free_blocks(EXT4_SB(sb), 1) ||
+ (*retries)++ > 3 ||
+ !EXT4_SB(sb)->s_journal)
return 0;
jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
@@ -684,15 +686,15 @@ ext4_fsblk_t ext4_count_free_blocks(struct super_block *sb)
gdp = ext4_get_group_desc(sb, i, NULL);
if (!gdp)
continue;
- desc_count += le16_to_cpu(gdp->bg_free_blocks_count);
+ desc_count += ext4_free_blks_count(sb, gdp);
brelse(bitmap_bh);
bitmap_bh = ext4_read_block_bitmap(sb, i);
if (bitmap_bh == NULL)
continue;
x = ext4_count_free(bitmap_bh, sb->s_blocksize);
- printk(KERN_DEBUG "group %lu: stored = %d, counted = %u\n",
- i, le16_to_cpu(gdp->bg_free_blocks_count), x);
+ printk(KERN_DEBUG "group %u: stored = %d, counted = %u\n",
+ i, ext4_free_blks_count(sb, gdp), x);
bitmap_count += x;
}
brelse(bitmap_bh);
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index c668e4377d7..b0c87dce66a 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -868,7 +868,7 @@ static inline unsigned ext4_rec_len_from_disk(__le16 dlen)
{
unsigned len = le16_to_cpu(dlen);
- if (len == EXT4_MAX_REC_LEN)
+ if (len == EXT4_MAX_REC_LEN || len == 0)
return 1 << 16;
return len;
}
@@ -1206,8 +1206,11 @@ static inline void ext4_r_blocks_count_set(struct ext4_super_block *es,
static inline loff_t ext4_isize(struct ext4_inode *raw_inode)
{
- return ((loff_t)le32_to_cpu(raw_inode->i_size_high) << 32) |
- le32_to_cpu(raw_inode->i_size_lo);
+ if (S_ISREG(le16_to_cpu(raw_inode->i_mode)))
+ return ((loff_t)le32_to_cpu(raw_inode->i_size_high) << 32) |
+ le32_to_cpu(raw_inode->i_size_lo);
+ else
+ return (loff_t) le32_to_cpu(raw_inode->i_size_lo);
}
static inline void ext4_isize_set(struct ext4_inode *raw_inode, loff_t i_size)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 54bf0623a9a..e2eab196875 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -3048,7 +3048,7 @@ retry:
WARN_ON(ret <= 0);
printk(KERN_ERR "%s: ext4_ext_get_blocks "
"returned error inode#%lu, block=%u, "
- "max_blocks=%lu", __func__,
+ "max_blocks=%u", __func__,
inode->i_ino, block, max_blocks);
#endif
ext4_mark_inode_dirty(handle, inode);
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 4fb86a0061d..f18a919be70 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -715,6 +715,13 @@ struct inode *ext4_new_inode(handle_t *handle, struct inode *dir, int mode)
if (sbi->s_log_groups_per_flex) {
ret2 = find_group_flex(sb, dir, &group);
+ if (ret2 == -1) {
+ ret2 = find_group_other(sb, dir, &group);
+ if (ret2 == 0 && printk_ratelimit())
+ printk(KERN_NOTICE "ext4: find_group_flex "
+ "failed, fallback succeeded dir %lu\n",
+ dir->i_ino);
+ }
goto got_group;
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index a6444cee0c7..c7fed5b1874 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -47,8 +47,10 @@
static inline int ext4_begin_ordered_truncate(struct inode *inode,
loff_t new_size)
{
- return jbd2_journal_begin_ordered_truncate(&EXT4_I(inode)->jinode,
- new_size);
+ return jbd2_journal_begin_ordered_truncate(
+ EXT4_SB(inode->i_sb)->s_journal,
+ &EXT4_I(inode)->jinode,
+ new_size);
}
static void ext4_invalidatepage(struct page *page, unsigned long offset);
@@ -360,9 +362,9 @@ static int ext4_block_to_path(struct inode *inode,
final = ptrs;
} else {
ext4_warning(inode->i_sb, "ext4_block_to_path",
- "block %lu > max",
+ "block %lu > max in inode %lu",
i_block + direct_blocks +
- indirect_blocks + double_blocks);
+ indirect_blocks + double_blocks, inode->i_ino);
}
if (boundary)
*boundary = final - 1 - (i_block & (ptrs - 1));
@@ -1366,6 +1368,10 @@ retry:
goto out;
}
+ /* We cannot recurse into the filesystem as the transaction is already
+ * started */
+ flags |= AOP_FLAG_NOFS;
+
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page) {
ext4_journal_stop(handle);
@@ -1375,7 +1381,7 @@ retry:
*pagep = page;
ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
- ext4_get_block);
+ ext4_get_block);
if (!ret && ext4_should_journal_data(inode)) {
ret = walk_page_buffers(handle, page_buffers(page),
@@ -2437,6 +2443,7 @@ static int ext4_da_writepages(struct address_space *mapping,
int no_nrwrite_index_update;
int pages_written = 0;
long pages_skipped;
+ int range_cyclic, cycled = 1, io_done = 0;
int needed_blocks, ret = 0, nr_to_writebump = 0;
struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
@@ -2488,9 +2495,15 @@ static int ext4_da_writepages(struct address_space *mapping,
if (wbc->range_start == 0 && wbc->range_end == LLONG_MAX)
range_whole = 1;
- if (wbc->range_cyclic)
+ range_cyclic = wbc->range_cyclic;
+ if (wbc->range_cyclic) {
index = mapping->writeback_index;
- else
+ if (index)
+ cycled = 0;
+ wbc->range_start = index << PAGE_CACHE_SHIFT;
+ wbc->range_end = LLONG_MAX;
+ wbc->range_cyclic = 0;
+ } else
index = wbc->range_start >> PAGE_CACHE_SHIFT;
mpd.wbc = wbc;
@@ -2504,6 +2517,7 @@ static int ext4_da_writepages(struct address_space *mapping,
wbc->no_nrwrite_index_update = 1;
pages_skipped = wbc->pages_skipped;
+retry:
while (!ret && wbc->nr_to_write > 0) {
/*
@@ -2530,7 +2544,7 @@ static int ext4_da_writepages(struct address_space *mapping,
ext4_journal_stop(handle);
- if (mpd.retval == -ENOSPC) {
+ if ((mpd.retval == -ENOSPC) && sbi->s_journal) {
/* commit the transaction which would
* free blocks released in the transaction
* and try again
@@ -2546,6 +2560,7 @@ static int ext4_da_writepages(struct address_space *mapping,
pages_written += mpd.pages_written;
wbc->pages_skipped = pages_skipped;
ret = 0;
+ io_done = 1;
} else if (wbc->nr_to_write)
/*
* There is no more writeout needed
@@ -2554,6 +2569,13 @@ static int ext4_da_writepages(struct address_space *mapping,
*/
break;
}
+ if (!io_done && !cycled) {
+ cycled = 1;
+ index = 0;
+ wbc->range_start = index << PAGE_CACHE_SHIFT;
+ wbc->range_end = mapping->writeback_index - 1;
+ goto retry;
+ }
if (pages_skipped != wbc->pages_skipped)
printk(KERN_EMERG "This should not happen leaving %s "
"with nr_to_write = %ld ret = %d\n",
@@ -2561,6 +2583,7 @@ static int ext4_da_writepages(struct address_space *mapping,
/* Update index */
index += pages_written;
+ wbc->range_cyclic = range_cyclic;
if (wbc->range_cyclic || (range_whole && wbc->nr_to_write > 0))
/*
* set the writeback_index so that range_cyclic
@@ -2648,6 +2671,9 @@ retry:
ret = PTR_ERR(handle);
goto out;
}
+ /* We cannot recurse into the filesystem as the transaction is already
+ * started */
+ flags |= AOP_FLAG_NOFS;
page = grab_cache_page_write_begin(mapping, index, flags);
if (!page) {
@@ -2821,9 +2847,6 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
filemap_write_and_wait(mapping);
}
- BUG_ON(!EXT4_JOURNAL(inode) &&
- EXT4_I(inode)->i_state & EXT4_STATE_JDATA);
-
if (EXT4_JOURNAL(inode) && EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
/*
* This is a REALLY heavyweight approach, but the use of
@@ -3622,7 +3645,7 @@ static void ext4_free_data(handle_t *handle, struct inode *inode,
* block pointed to itself, it would have been detached when
* the block was cleared. Check for this instead of OOPSing.
*/
- if (bh2jh(this_bh))
+ if ((EXT4_JOURNAL(inode) == NULL) || bh2jh(this_bh))
ext4_handle_dirty_metadata(handle, inode, this_bh);
else
ext4_error(inode->i_sb, __func__,
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 918aec0c8a1..4415beeb0b6 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3025,7 +3025,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
goto out_err;
ext4_debug("using block group %u(%d)\n", ac->ac_b_ex.fe_group,
- gdp->bg_free_blocks_count);
+ ext4_free_blks_count(sb, gdp));
err = ext4_journal_get_write_access(handle, gdp_bh);
if (err)
@@ -3693,6 +3693,8 @@ ext4_mb_new_inode_pa(struct ext4_allocation_context *ac)
pa->pa_free = pa->pa_len;
atomic_set(&pa->pa_count, 1);
spin_lock_init(&pa->pa_lock);
+ INIT_LIST_HEAD(&pa->pa_inode_list);
+ INIT_LIST_HEAD(&pa->pa_group_list);
pa->pa_deleted = 0;
pa->pa_linear = 0;
@@ -3755,6 +3757,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
atomic_set(&pa->pa_count, 1);
spin_lock_init(&pa->pa_lock);
INIT_LIST_HEAD(&pa->pa_inode_list);
+ INIT_LIST_HEAD(&pa->pa_group_list);
pa->pa_deleted = 0;
pa->pa_linear = 1;
@@ -4476,23 +4479,26 @@ static int ext4_mb_release_context(struct ext4_allocation_context *ac)
pa->pa_free -= ac->ac_b_ex.fe_len;
pa->pa_len -= ac->ac_b_ex.fe_len;
spin_unlock(&pa->pa_lock);
- /*
- * We want to add the pa to the right bucket.
- * Remove it from the list and while adding
- * make sure the list to which we are adding
- * doesn't grow big.
- */
- if (likely(pa->pa_free)) {
- spin_lock(pa->pa_obj_lock);
- list_del_rcu(&pa->pa_inode_list);
- spin_unlock(pa->pa_obj_lock);
- ext4_mb_add_n_trim(ac);
- }
}
- ext4_mb_put_pa(ac, ac->ac_sb, pa);
}
if (ac->alloc_semp)
up_read(ac->alloc_semp);
+ if (pa) {
+ /*
+ * We want to add the pa to the right bucket.
+ * Remove it from the list and while adding
+ * make sure the list to which we are adding
+ * doesn't grow big. We need to release
+ * alloc_semp before calling ext4_mb_add_n_trim()
+ */
+ if (pa->pa_linear && likely(pa->pa_free)) {
+ spin_lock(pa->pa_obj_lock);
+ list_del_rcu(&pa->pa_inode_list);
+ spin_unlock(pa->pa_obj_lock);
+ ext4_mb_add_n_trim(ac);
+ }
+ ext4_mb_put_pa(ac, ac->ac_sb, pa);
+ }
if (ac->ac_bitmap_page)
page_cache_release(ac->ac_bitmap_page);
if (ac->ac_buddy_page)
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 734abca25e3..fe64d9f7985 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -481,7 +481,7 @@ int ext4_ext_migrate(struct inode *inode)
+ 1);
if (IS_ERR(handle)) {
retval = PTR_ERR(handle);
- goto err_out;
+ return retval;
}
tmp_inode = ext4_new_inode(handle,
inode->i_sb->s_root->d_inode,
@@ -489,8 +489,7 @@ int ext4_ext_migrate(struct inode *inode)
if (IS_ERR(tmp_inode)) {
retval = -ENOMEM;
ext4_journal_stop(handle);
- tmp_inode = NULL;
- goto err_out;
+ return retval;
}
i_size_write(tmp_inode, i_size_read(inode));
/*
@@ -618,8 +617,7 @@ err_out:
ext4_journal_stop(handle);
- if (tmp_inode)
- iput(tmp_inode);
+ iput(tmp_inode);
return retval;
}
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index fec0b4c2f5f..ba702bd7910 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1368,7 +1368,7 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
struct fake_dirent *fde;
blocksize = dir->i_sb->s_blocksize;
- dxtrace(printk(KERN_DEBUG "Creating index\n"));
+ dxtrace(printk(KERN_DEBUG "Creating index: inode %lu\n", dir->i_ino));
retval = ext4_journal_get_write_access(handle, bh);
if (retval) {
ext4_std_error(dir->i_sb, retval);
@@ -1377,6 +1377,20 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
}
root = (struct dx_root *) bh->b_data;
+ /* The 0th block becomes the root, move the dirents out */
+ fde = &root->dotdot;
+ de = (struct ext4_dir_entry_2 *)((char *)fde +
+ ext4_rec_len_from_disk(fde->rec_len));
+ if ((char *) de >= (((char *) root) + blocksize)) {
+ ext4_error(dir->i_sb, __func__,
+ "invalid rec_len for '..' in inode %lu",
+ dir->i_ino);
+ brelse(bh);
+ return -EIO;
+ }
+ len = ((char *) root) + blocksize - (char *) de;
+
+ /* Allocate new block for the 0th block's dirents */
bh2 = ext4_append(handle, dir, &block, &retval);
if (!(bh2)) {
brelse(bh);
@@ -1385,11 +1399,6 @@ static int make_indexed_dir(handle_t *handle, struct dentry *dentry,
EXT4_I(dir)->i_flags |= EXT4_INDEX_FL;
data1 = bh2->b_data;
- /* The 0th block becomes the root, move the dirents out */
- fde = &root->dotdot;
- de = (struct ext4_dir_entry_2 *)((char *)fde +
- ext4_rec_len_from_disk(fde->rec_len));
- len = ((char *) root) + blocksize - (char *) de;
memcpy (data1, de, len);
de = (struct ext4_dir_entry_2 *) data1;
top = data1 + len;
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index c328be5d688..c06886abd65 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -861,12 +861,13 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
gdp = (struct ext4_group_desc *)((char *)primary->b_data +
gdb_off * EXT4_DESC_SIZE(sb));
+ memset(gdp, 0, EXT4_DESC_SIZE(sb));
ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */
ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */
ext4_free_blks_set(sb, gdp, input->free_blocks_count);
ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
- gdp->bg_flags |= cpu_to_le16(EXT4_BG_INODE_ZEROED);
+ gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED);
gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
/*
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index e5f06a5f045..39d1993cfa1 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3046,14 +3046,17 @@ static void ext4_write_super(struct super_block *sb)
static int ext4_sync_fs(struct super_block *sb, int wait)
{
int ret = 0;
+ tid_t target;
trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait);
sb->s_dirt = 0;
if (EXT4_SB(sb)->s_journal) {
- if (wait)
- ret = ext4_force_commit(sb);
- else
- jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL);
+ if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal,
+ &target)) {
+ if (wait)
+ jbd2_log_wait_commit(EXT4_SB(sb)->s_journal,
+ target);
+ }
} else {
ext4_commit_super(sb, EXT4_SB(sb)->s_es, wait);
}
@@ -3088,7 +3091,6 @@ static int ext4_freeze(struct super_block *sb)
/* Journal blocked and flushed, clear needs_recovery flag. */
EXT4_CLEAR_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
- ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
error = ext4_commit_super(sb, EXT4_SB(sb)->s_es, 1);
if (error)
goto out;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 13:25:47 +0000