diff options
| author | karam.lee <karam.lee@lge.com> | 2014-12-13 03:56:47 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-12-13 23:42:49 +0300 |
| commit | b627cff3d308d3ccb3ec73a89260f5c7872e46a4 (patch) | |
| tree | 9b97db382c8467564528cad4503e369f45a0cc55 /drivers/block/zram | |
| parent | 9eec4cd53f9865b733dc78cf5f6465871beed014 (diff) | |
| download | linux-b627cff3d308d3ccb3ec73a89260f5c7872e46a4.tar.xz | |
zram: remove bio parameter from zram_bvec_rw()
Recently rw_page block device operation has been added. This patchset
implements rw_page operation for zram block device and does some clean-up.
This patch (of 3):
Remove an unnecessary parameter(bio) from zram_bvec_rw() and
zram_bvec_read(). zram_bvec_read() doesn't use a bio parameter, so remove
it. zram_bvec_rw() calls a read/write operation not using bio, so a rw
parameter replaces a bio parameter.
Signed-off-by: karam.lee <karam.lee@lge.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: <seungho1.park@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/block/zram')
| -rw-r--r-- | drivers/block/zram/zram_drv.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 3920ee45aa59..ac5be75c013f 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -453,7 +453,7 @@ static int zram_decompress_page(struct zram *zram, char *mem, u32 index) } static int zram_bvec_read(struct zram *zram, struct bio_vec *bvec, - u32 index, int offset, struct bio *bio) + u32 index, int offset) { int ret; struct page *page; @@ -645,14 +645,13 @@ out: } static int zram_bvec_rw(struct zram *zram, struct bio_vec *bvec, u32 index, - int offset, struct bio *bio) + int offset, int rw) { int ret; - int rw = bio_data_dir(bio); if (rw == READ) { atomic64_inc(&zram->stats.num_reads); - ret = zram_bvec_read(zram, bvec, index, offset, bio); + ret = zram_bvec_read(zram, bvec, index, offset); } else { atomic64_inc(&zram->stats.num_writes); ret = zram_bvec_write(zram, bvec, index, offset); @@ -853,7 +852,7 @@ out: static void __zram_make_request(struct zram *zram, struct bio *bio) { - int offset; + int offset, rw; u32 index; struct bio_vec bvec; struct bvec_iter iter; @@ -868,6 +867,7 @@ static void __zram_make_request(struct zram *zram, struct bio *bio) return; } + rw = bio_data_dir(bio); bio_for_each_segment(bvec, bio, iter) { int max_transfer_size = PAGE_SIZE - offset; @@ -882,15 +882,15 @@ static void __zram_make_request(struct zram *zram, struct bio *bio) bv.bv_len = max_transfer_size; bv.bv_offset = bvec.bv_offset; - if (zram_bvec_rw(zram, &bv, index, offset, bio) < 0) + if (zram_bvec_rw(zram, &bv, index, offset, rw) < 0) goto out; bv.bv_len = bvec.bv_len - max_transfer_size; bv.bv_offset += max_transfer_size; - if (zram_bvec_rw(zram, &bv, index + 1, 0, bio) < 0) + if (zram_bvec_rw(zram, &bv, index + 1, 0, rw) < 0) goto out; } else - if (zram_bvec_rw(zram, &bvec, index, offset, bio) < 0) + if (zram_bvec_rw(zram, &bvec, index, offset, rw) < 0) goto out; update_position(&index, &offset, &bvec); |