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| author |   Anatol Pomozov <anatol.pomozov@gmail.com> | 2012-09-18 13:38:59 -0400 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2012-09-18 13:38:59 -0400 |
| commit | c9b92530a723ac5ef8e352885a1862b18f31b2f5 (patch) | |
| tree | f58f88720dbf430ee33bee03d978dddf54584c33 /fs/ext4 | |
| parent | ext4: re-enable -o discard functionality in no-journal mode (diff) | |
| download | linux-dev-c9b92530a723ac5ef8e352885a1862b18f31b2f5.tar.xz linux-dev-c9b92530a723ac5ef8e352885a1862b18f31b2f5.zip | |
ext4: make orphan functions be no-op in no-journal mode
Instead of checking whether the handle is valid, we check if journal
is enabled. This avoids taking the s_orphan_lock mutex in all cases
when there is no journal in use, including the error paths where
ext4_orphan_del() is called with a handle set to NULL.
Signed-off-by: Anatol Pomozov <anatol.pomozov@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/namei.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 37c03b32e194..8f4bda75122e 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -2369,7 +2369,7 @@ int ext4_orphan_add(handle_t *handle, struct inode *inode) struct ext4_iloc iloc; int err = 0, rc; - if (!ext4_handle_valid(handle)) + if (!EXT4_SB(sb)->s_journal) return 0; mutex_lock(&EXT4_SB(sb)->s_orphan_lock); @@ -2443,8 +2443,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode) struct ext4_iloc iloc; int err = 0; - /* ext4_handle_valid() assumes a valid handle_t pointer */ - if (handle && !ext4_handle_valid(handle)) + if (!EXT4_SB(inode->i_sb)->s_journal) return 0; mutex_lock(&EXT4_SB(inode->i_sb)->s_orphan_lock); @@ -2463,7 +2462,7 @@ int ext4_orphan_del(handle_t *handle, struct inode *inode) * transaction handle with which to update the orphan list on * disk, but we still need to remove the inode from the linked * list in memory. */ - if (sbi->s_journal && !handle) + if (!handle) goto out; err = ext4_reserve_inode_write(handle, inode, &iloc); |