A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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push BKL down into ->put_super

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Move BKL into ->put_super from the only caller.  A couple of
filesystems had trivial enough ->put_super (only kfree and NULLing of
s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
hugetlbfs, omfs, qnx4, shmem, all others got the full treatment.  Most
of them probably don't need it, but I'd rather sort that out individually.
Preferably after all the other BKL pushdowns in that area.

[AV: original used to move lock_super() down as well; these changes are
removed since we don't do lock_super() at all in generic_shutdown_super()
now]
[AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

Signed-off-by: Christoph Hellwig <[email protected]>
Signed-off-by: Al Viro <[email protected]>
This commit is contained in:
Christoph Hellwig 2009-05-05 15:40:36 +02:00 • committed by Al Viro
commit 6cfd014842
33 changed files with 133 additions and 12 deletions
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4
fs/bfs/inode.c
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@ -217,6 +217,8 @@ static void bfs_put_super(struct super_block *s)
if (!info)
return;
lock_kernel();
if (s->s_dirt)
bfs_write_super(s);
@ -225,6 +227,8 @@ static void bfs_put_super(struct super_block *s)
kfree(info->si_imap);
kfree(info);
s->s_fs_info = NULL;
unlock_kernel();
}
static int bfs_statfs(struct dentry *dentry, struct kstatfs *buf)