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| author |   Boaz Harrosh <bharrosh@panasas.com> | 2009-08-19 17:56:46 +0300 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2009-09-24 07:47:38 -0400 |
| commit | 1ba50bbe93ebb98e83b174a85eff76af430c4e5b (patch) | |
| tree | 4c7b7db057fa5ca60a4e1adcb5dfb63cbf5a5702 /fs/exofs | |
| parent | fs/romfs: correct error-handling code (diff) | |
| download | linux-dev-1ba50bbe93ebb98e83b174a85eff76af430c4e5b.tar.xz linux-dev-1ba50bbe93ebb98e83b174a85eff76af430c4e5b.zip | |
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')
| -rw-r--r-- | fs/exofs/super.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/fs/exofs/super.c b/fs/exofs/super.c index 5ab10c3bbebe..9f500dec3b59 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(); } /* |