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| author | Christoph Hellwig | 2019-06-26 15:49:28 +0200 |
|---|---|---|
| committer | Jens Axboe | 2019-06-29 17:47:32 +0200 |
| commit | b620743077e291ae7d0debd21f50413a8c266229 (patch) | |
| tree | 965cefe7b283e821cc9f288e9ded8ba0778f6a60 /fs/io_uring.c | |
| parent | direct-io: use bio_release_pages in dio_bio_complete (diff) | |
| download | kernel-qcow2-linux-b620743077e291ae7d0debd21f50413a8c266229.tar.gz kernel-qcow2-linux-b620743077e291ae7d0debd21f50413a8c266229.tar.xz kernel-qcow2-linux-b620743077e291ae7d0debd21f50413a8c266229.zip | |
block: never take page references for ITER_BVEC
If we pass pages through an iov_iter we always already have a reference
in the caller. Thus remove the ITER_BVEC_FLAG_NO_REF and don't take
reference to pages by default for bvec backed iov_iters.
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/io_uring.c')
| -rw-r--r-- | fs/io_uring.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/io_uring.c b/fs/io_uring.c index 86a2bd721900..eb6ab1507913 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -997,9 +997,6 @@ static int io_import_fixed(struct io_ring_ctx *ctx, int rw, iov_iter_bvec(iter, rw, imu->bvec, imu->nr_bvecs, offset + len); if (offset) iov_iter_advance(iter, offset); - - /* don't drop a reference to these pages */ - iter->type |= ITER_BVEC_FLAG_NO_REF; return 0; } |