diff options
| author | Goldwyn Rodrigues <rgoldwyn@suse.com> | 2017-06-20 07:05:42 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-06-20 07:12:03 -0600 |
| commit | 9830f4be159b29399d107bffb99e0132bc5aedd4 (patch) | |
| tree | da2f9199e0921f78dd4500916215c19ae8914134 /fs/aio.c | |
| parent | 7fc9e4722435cd8459182c4975f48934f2bb1274 (diff) | |
| download | linux-stable-9830f4be159b29399d107bffb99e0132bc5aedd4.tar.gz linux-stable-9830f4be159b29399d107bffb99e0132bc5aedd4.tar.bz2 linux-stable-9830f4be159b29399d107bffb99e0132bc5aedd4.zip | |
fs: Use RWF_* flags for AIO operations
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>
Diffstat (limited to 'fs/aio.c')
| -rw-r--r-- | fs/aio.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -1541,7 +1541,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, ssize_t ret; /* enforce forwards compatibility on users */ - if (unlikely(iocb->aio_reserved1 || iocb->aio_reserved2)) { + if (unlikely(iocb->aio_reserved2)) { pr_debug("EINVAL: reserve field set\n"); return -EINVAL; } @@ -1586,6 +1586,12 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb, req->common.ki_flags |= IOCB_EVENTFD; } + ret = kiocb_set_rw_flags(&req->common, iocb->aio_rw_flags); + if (unlikely(ret)) { + pr_debug("EINVAL: aio_rw_flags\n"); + goto out_put_req; + } + ret = put_user(KIOCB_KEY, &user_iocb->aio_key); if (unlikely(ret)) { pr_debug("EFAULT: aio_key\n"); |