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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 17:41:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 17:41:19 -0700
commit77aa56ba09b7416764aec2e3f7b41e023cf30602 (patch)
treed4247c8ee6b7371e60dcadaf1540c943ed7a9801 /fs/ext3
parent179198373cf374f0ef793f1023c1cdd83b53674d (diff)
parent0c755de03e69619c768867d89e6d827d3afa13d9 (diff)
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Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: ext3: Always set dx_node's fake_dirent explicitly. ext3: Fix an overflow in ext3_trim_fs. jbd: Remove one to many n's in a word. ext3: skip orphan cleanup on rocompat fs ext2: Fix link count corruption under heavy link+rename load ext3: speed up group trim with the right free block count. ext3: Adjust trim start with first_data_block. quota: return -ENOMEM when memory allocation fails
Diffstat (limited to 'fs/ext3')
-rw-r--r--fs/ext3/balloc.c21
-rw-r--r--fs/ext3/namei.c2
-rw-r--r--fs/ext3/super.c7
3 files changed, 20 insertions, 10 deletions
diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c
index 045995c..1532421 100644
--- a/fs/ext3/balloc.c
+++ b/fs/ext3/balloc.c
@@ -1991,6 +1991,7 @@ ext3_grpblk_t ext3_trim_all_free(struct super_block *sb, unsigned int group,
spin_unlock(sb_bgl_lock(sbi, group));
percpu_counter_sub(&sbi->s_freeblocks_counter, next - start);
+ free_blocks -= next - start;
/* Do not issue a TRIM on extents smaller than minblocks */
if ((next - start) < minblocks)
goto free_extent;
@@ -2040,7 +2041,7 @@ free_extent:
cond_resched();
/* No more suitable extents */
- if ((free_blocks - count) < minblocks)
+ if (free_blocks < minblocks)
break;
}
@@ -2090,7 +2091,8 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
ext3_fsblk_t max_blks = le32_to_cpu(es->s_blocks_count);
int ret = 0;
- start = range->start >> sb->s_blocksize_bits;
+ start = (range->start >> sb->s_blocksize_bits) +
+ le32_to_cpu(es->s_first_data_block);
len = range->len >> sb->s_blocksize_bits;
minlen = range->minlen >> sb->s_blocksize_bits;
trimmed = 0;
@@ -2099,10 +2101,6 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
return -EINVAL;
if (start >= max_blks)
goto out;
- if (start < le32_to_cpu(es->s_first_data_block)) {
- len -= le32_to_cpu(es->s_first_data_block) - start;
- start = le32_to_cpu(es->s_first_data_block);
- }
if (start + len > max_blks)
len = max_blks - start;
@@ -2129,10 +2127,15 @@ int ext3_trim_fs(struct super_block *sb, struct fstrim_range *range)
if (free_blocks < minlen)
continue;
- if (len >= EXT3_BLOCKS_PER_GROUP(sb))
- len -= (EXT3_BLOCKS_PER_GROUP(sb) - first_block);
- else
+ /*
+ * For all the groups except the last one, last block will
+ * always be EXT3_BLOCKS_PER_GROUP(sb), so we only need to
+ * change it for the last group in which case first_block +
+ * len < EXT3_BLOCKS_PER_GROUP(sb).
+ */
+ if (first_block + len < EXT3_BLOCKS_PER_GROUP(sb))
last_block = first_block + len;
+ len -= last_block - first_block;
ret = ext3_trim_all_free(sb, group, first_block,
last_block, minlen);
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 0521a00..32f3b86 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1540,8 +1540,8 @@ static int ext3_dx_add_entry(handle_t *handle, struct dentry *dentry,
goto cleanup;
node2 = (struct dx_node *)(bh2->b_data);
entries2 = node2->entries;
+ memset(&node2->fake, 0, sizeof(struct fake_dirent));
node2->fake.rec_len = ext3_rec_len_to_disk(sb->s_blocksize);
- node2->fake.inode = 0;
BUFFER_TRACE(frame->bh, "get_write_access");
err = ext3_journal_get_write_access(handle, frame->bh);
if (err)
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 9cc19a1d..071689f 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1464,6 +1464,13 @@ static void ext3_orphan_cleanup (struct super_block * sb,
return;
}
+ /* Check if feature set allows readwrite operations */
+ if (EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP)) {
+ ext3_msg(sb, KERN_INFO, "Skipping orphan cleanup due to "
+ "unknown ROCOMPAT features");
+ return;
+ }
+
if (EXT3_SB(sb)->s_mount_state & EXT3_ERROR_FS) {
if (es->s_last_orphan)
jbd_debug(1, "Errors on filesystem, "