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authorBoaz Harrosh <bharrosh@panasas.com>2009-08-19 17:56:46 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2009-09-24 07:47:38 -0400
commit1ba50bbe93ebb98e83b174a85eff76af430c4e5b (patch)
tree4c7b7db057fa5ca60a4e1adcb5dfb63cbf5a5702 /fs/exofs/super.c
parent88a0a53d702b1fa39ed9e631939d2dbd92dfe486 (diff)
exofs: remove BKL from super operations
the two places inside exofs that where taking the BKL were: exofs_put_super() - .put_super and exofs_sync_fs() - which is .sync_fs and is also called from .write_super. Now exofs_sync_fs() is protected from itself by also taking the sb_lock. exofs_put_super() directly calls exofs_sync_fs() so there is no danger between these two either. In anyway there is absolutely nothing dangerous been done inside exofs_sync_fs(). Unless there is some subtle race with the actual lifetime of the super_block in regard to .put_super and some other parts of the VFS. Which is highly unlikely. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/exofs/super.c')
-rw-r--r--fs/exofs/super.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 5ab10c3bbeb..9f500dec3b5 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -214,7 +214,6 @@ int exofs_sync_fs(struct super_block *sb, int wait)
}
lock_super(sb);
- lock_kernel();
sbi = sb->s_fs_info;
fscb->s_nextid = cpu_to_le64(sbi->s_nextid);
fscb->s_numfiles = cpu_to_le32(sbi->s_numfiles);
@@ -245,7 +244,6 @@ int exofs_sync_fs(struct super_block *sb, int wait)
out:
if (or)
osd_end_request(or);
- unlock_kernel();
unlock_super(sb);
kfree(fscb);
return ret;
@@ -268,8 +266,6 @@ static void exofs_put_super(struct super_block *sb)
int num_pend;
struct exofs_sb_info *sbi = sb->s_fs_info;
- lock_kernel();
-
if (sb->s_dirt)
exofs_write_super(sb);
@@ -286,8 +282,6 @@ static void exofs_put_super(struct super_block *sb)
osduld_put_device(sbi->s_dev);
kfree(sb->s_fs_info);
sb->s_fs_info = NULL;
-
- unlock_kernel();
}
/*