[PATCH 02/36] aio: remove an outdated comment in aio_complete
From: Christoph Hellwig <hch@lst.de>
Date: 2018-01-22 20:12:09
Also in:
linux-fsdevel, lkml, netdev
Subsystem:
aio, filesystems (vfs and infrastructure), the rest · Maintainers:
Benjamin LaHaise, Alexander Viro, Christian Brauner, Linus Torvalds
These days we don't treat sync iocbs special in the aio completion code as they never use it. Remove the old comment, and move the BUG_ON for a sync iocb to the top of the function. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jeff Moyer <redacted> --- fs/aio.c | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-)
diff --git a/fs/aio.c b/fs/aio.c
index 03d59593912d..41fc8ce6bc7f 100644
--- a/fs/aio.c
+++ b/fs/aio.c@@ -1088,6 +1088,8 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2) unsigned tail, pos, head; unsigned long flags; + BUG_ON(is_sync_kiocb(kiocb)); + if (kiocb->ki_flags & IOCB_WRITE) { struct file *file = kiocb->ki_filp;
@@ -1100,15 +1102,6 @@ static void aio_complete(struct kiocb *kiocb, long res, long res2) 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) { unsigned long flags;
--
2.14.2
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