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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-05-08 21:33:55 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-05-14 13:16:11 -0600 |
| commit | 6e6e811d747bfe40228dc72309450803ef74d380 (patch) | |
| tree | a25834cab4b4cbeb1d7b8c16c6cf907ffd93c49d /block/bio.c | |
| parent | 45db54d58de0b7171fe1f0d1dfc14378e464949e (diff) | |
| download | linux-0-day-6e6e811d747bfe40228dc72309450803ef74d380.tar.gz linux-0-day-6e6e811d747bfe40228dc72309450803ef74d380.tar.xz | |
block: Add missing flush_dcache_page() call
Since a bio can point to userspace pages (e.g. direct IO), this is
generally necessary.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c index 858f56f3edcb6..2112ad01b52cd 100644 --- a/block/bio.c +++ b/block/bio.c @@ -994,6 +994,8 @@ void bio_copy_data_iter(struct bio *dst, struct bvec_iter *dst_iter, kunmap_atomic(dst_p); kunmap_atomic(src_p); + flush_dcache_page(dst_bv.bv_page); + bio_advance_iter(src, src_iter, bytes); bio_advance_iter(dst, dst_iter, bytes); } |