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aio: remove an outdated BUG_ON and comment in aio_complete

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These days we don't treat sync iocbs special in the aio completion code as
they never use it.  Remove the old comment and BUG_ON given that the
current definition of is_sync_kiocb makes it impossible to hit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Christoph Hellwig 2017-11-23 19:53:40 +01:00
parent 01a658e1e9
commit c213dc826c
1 changed files with 0 additions and 9 deletions
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9
fs/aio.c
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@ -1107,15 +1107,6 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2)
file_end_write(file); file_end_write(file);
} }
/*
* Special case handling for sync iocbs:
* - events go directly into the iocb for fast handling
* - the sync task with the iocb in its stack holds the single iocb
* ref, no other paths have a way to get another ref
* - the sync task helpfully left a reference to itself in the iocb
*/
BUG_ON(is_sync_kiocb(kiocb));
if (iocb->ki_list.next) { if (iocb->ki_list.next) {
unsigned long flags; unsigned long flags;