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authorChristoph Hellwig <hch@lst.de>2023-04-11 19:14:47 +0200
committerAndrew Morton <akpm@linux-foundation.org>2023-04-19 01:29:57 +0200
commitd6eea0097e26769fb58c2773214c3bda85d1678a (patch)
treeaf0ddee440248aca1f049498aecfaf94450732d5 /drivers/block/zram/zram_drv.c
parentzram: simplify bvec iteration in __zram_make_request (diff)
downloadlinux-d6eea0097e26769fb58c2773214c3bda85d1678a.tar.xz
linux-d6eea0097e26769fb58c2773214c3bda85d1678a.zip
zram: move discard handling to zram_submit_bio
Switch on the bio operation in zram_submit_bio and only call into __zram_make_request for read and write operations. Link: https://lkml.kernel.org/r/20230411171459.567614-6-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Acked-by: Minchan Kim <minchan@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to '')
-rw-r--r--drivers/block/zram/zram_drv.c23
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index e13c7d8e283b..00f13eb1c800 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1958,15 +1958,6 @@ static void __zram_make_request(struct zram *zram, struct bio *bio)
struct bio_vec bv;
unsigned long start_time;
- switch (bio_op(bio)) {
- case REQ_OP_DISCARD:
- case REQ_OP_WRITE_ZEROES:
- zram_bio_discard(zram, bio);
- return;
- default:
- break;
- }
-
start_time = bio_start_io_acct(bio);
bio_for_each_segment(bv, bio, iter) {
u32 index = iter.bi_sector >> SECTORS_PER_PAGE_SHIFT;
@@ -1990,7 +1981,19 @@ static void zram_submit_bio(struct bio *bio)
{
struct zram *zram = bio->bi_bdev->bd_disk->private_data;
- __zram_make_request(zram, bio);
+ switch (bio_op(bio)) {
+ case REQ_OP_READ:
+ case REQ_OP_WRITE:
+ __zram_make_request(zram, bio);
+ break;
+ case REQ_OP_DISCARD:
+ case REQ_OP_WRITE_ZEROES:
+ zram_bio_discard(zram, bio);
+ break;
+ default:
+ WARN_ON_ONCE(1);
+ bio_endio(bio);
+ }
}
static void zram_slot_free_notify(struct block_device *bdev,