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authorAnatol Pomozov <anatol.pomozov@gmail.com>2012-09-18 19:38:59 +0200
committerTheodore Ts'o <tytso@mit.edu>2012-09-18 19:38:59 +0200
commitc9b92530a723ac5ef8e352885a1862b18f31b2f5 (patch)
treef58f88720dbf430ee33bee03d978dddf54584c33 /fs/ext4
parentext4: re-enable -o discard functionality in no-journal mode (diff)
downloadlinux-c9b92530a723ac5ef8e352885a1862b18f31b2f5.tar.xz
linux-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.c7
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);