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authorJens Axboe <axboe@kernel.dk>2020-08-10 18:44:24 -0600
committerJens Axboe <axboe@kernel.dk>2020-08-11 08:09:01 -0600
commitefa8480a831673bb52400df9dbe5da0aacda97bf (patch)
treeef35b265ada3875915696ee6b3112d5f688ed708
parent51a4cc112c7a42b62a91bcccdfac42e7c4561729 (diff)
downloadlinux-efa8480a831673bb52400df9dbe5da0aacda97bf.tar.gz
linux-efa8480a831673bb52400df9dbe5da0aacda97bf.tar.xz
fs: RWF_NOWAIT should imply IOCB_NOIO
With the change allowing read-ahead for IOCB_NOWAIT, we changed the RWF_NOWAIT semantics of only doing cached reads. Since we know have IOCB_NOIO to manage that specific side of it, just make RWF_NOWAIT imply IOCB_NOIO as well to restore the previous behavior. Fixes: 2e85abf053b9 ("mm: allow read-ahead with IOCB_NOWAIT set") Reported-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--include/linux/fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bd7ec3eaeed0..f1cca4bfdd7b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -3293,7 +3293,7 @@ static inline int kiocb_set_rw_flags(struct kiocb *ki, rwf_t flags)
if (flags & RWF_NOWAIT) {
if (!(ki->ki_filp->f_mode & FMODE_NOWAIT))
return -EOPNOTSUPP;
- kiocb_flags |= IOCB_NOWAIT;
+ kiocb_flags |= IOCB_NOWAIT | IOCB_NOIO;
}
if (flags & RWF_HIPRI)
kiocb_flags |= IOCB_HIPRI;