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locks: let the caller free file_lock on ->setlease failure

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The caller allocated it, the caller should free it.

The only issue so far is that we could change the flp pointer even on an
error return if the fl_change callback failed.  But we can simply move
the flp assignment after the fl_change invocation, as the callers don't
care about the flp return value if the setlease call failed.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Hellwig
2010-10-31 08:35:10 -04:00
committed by Linus Torvalds
parent 96f9359345
commit 51ee4b84f5
5 changed files with 13 additions and 17 deletions
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5
fs/cifs/cifsfs.c
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@@ -625,11 +625,8 @@ static int cifs_setlease(struct file *file, long arg, struct file_lock **lease)
knows that the file won't be changed on the server
by anyone else */
return generic_setlease(file, arg, lease);
else {
if (arg != F_UNLCK)
locks_free_lock(*lease);
else
return -EAGAIN;
}
}
struct file_system_type cifs_fs_type = {