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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3
fs/super.c
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@ -309,7 +309,6 @@ void generic_shutdown_super(struct super_block *sb)
/* bad name - it should be evict_inodes() */
invalidate_inodes(sb);
lock_kernel();
if (sop->put_super)
sop->put_super(sb);
@ -320,8 +319,6 @@ void generic_shutdown_super(struct super_block *sb)
"Self-destruct in 5 seconds. Have a nice day...\n",
sb->s_id);
}
unlock_kernel();
put_fs_excl();
}
spin_lock(&sb_lock);