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| author | Geliang Tang <geliangtang@163.com> | 2015-11-21 17:27:31 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-11-24 15:24:25 -0700 |
| commit | bd5cecea43ef379e82250addd0303e2f9ede6793 (patch) | |
| tree | 1a7368f90cea503866269a605c3dbd7be44c37be /block/bio.c | |
| parent | 1fe8f348416b3fb35ea3f24fa92bb1d29ffe7b0b (diff) | |
| download | lwn-bd5cecea43ef379e82250addd0303e2f9ede6793.tar.gz lwn-bd5cecea43ef379e82250addd0303e2f9ede6793.zip | |
bio: use offset_in_page macro
Use offset_in_page macro instead of (addr & ~PAGE_MASK).
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/block/bio.c b/block/bio.c index 4f184d938942..dbabd48b1934 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1125,7 +1125,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, int i, ret; int nr_pages = 0; unsigned int len = iter->count; - unsigned int offset = map_data ? map_data->offset & ~PAGE_MASK : 0; + unsigned int offset = map_data ? offset_in_page(map_data->offset) : 0; for (i = 0; i < iter->nr_segs; i++) { unsigned long uaddr; @@ -1304,7 +1304,7 @@ struct bio *bio_map_user_iov(struct request_queue *q, goto out_unmap; } - offset = uaddr & ~PAGE_MASK; + offset = offset_in_page(uaddr); for (j = cur_page; j < page_limit; j++) { unsigned int bytes = PAGE_SIZE - offset; |