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fs: Use RWF_* flags for AIO operations

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aio_rw_flags is introduced in struct iocb (using aio_reserved1) which will
carry the RWF_* flags. We cannot use aio_flags because they are not
checked for validity which may break existing applications.

Note, the only place RWF_HIPRI comes in effect is dio_await_one().
All the rest of the locations, aio code return -EIOCBQUEUED before the
checks for RWF_HIPRI.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Goldwyn Rodrigues
2017-06-20 07:05:42 -05:00
committed by Jens Axboe
parent 7fc9e47224
commit 9830f4be15
2 changed files with 8 additions and 2 deletions
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2
include/uapi/linux/aio_abi.h
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@@ -79,7 +79,7 @@ struct io_event {
struct iocb {
/* these are internal to the kernel/libc. */
__u64 aio_data; /* data to be returned in event's data */
__u32 PADDED(aio_key, aio_reserved1);
__u32 PADDED(aio_key, aio_rw_flags);
/* the kernel sets aio_key to the req # */
/* common fields */