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authorMikulas Patocka <mpatocka@redhat.com>2015-11-25 16:03:31 -0500
committerMike Snitzer <snitzer@redhat.com>2015-12-10 10:38:56 -0500
commitfe3265b180d6282648f03bc6ac3958c733df01c2 (patch)
treeacf20a7a1efed26556b258a6f6339167bff59202 /drivers/md/dm-cache-target.c
parent086fbbbda9b743b149b0294e0feec257e2c311d5 (diff)
downloadlinux-fe3265b180d6282648f03bc6ac3958c733df01c2.tar.bz2
dm: don't save and restore bi_private
Device mapper used the field bi_private to point to dm_target_io. However, since kernel 3.15, the bi_private field is unused, and so the targets do not need to save and restore this field. This patch removes code that saves and restores bi_private from dm-cache, dm-snapshot and dm-verity. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-cache-target.c')
-rw-r--r--drivers/md/dm-cache-target.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 2fd4c8296144..5780accffa30 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -118,14 +118,12 @@ static void iot_io_end(struct io_tracker *iot, sector_t len)
*/
struct dm_hook_info {
bio_end_io_t *bi_end_io;
- void *bi_private;
};
static void dm_hook_bio(struct dm_hook_info *h, struct bio *bio,
bio_end_io_t *bi_end_io, void *bi_private)
{
h->bi_end_io = bio->bi_end_io;
- h->bi_private = bio->bi_private;
bio->bi_end_io = bi_end_io;
bio->bi_private = bi_private;
@@ -134,7 +132,6 @@ static void dm_hook_bio(struct dm_hook_info *h, struct bio *bio,
static void dm_unhook_bio(struct dm_hook_info *h, struct bio *bio)
{
bio->bi_end_io = h->bi_end_io;
- bio->bi_private = h->bi_private;
}
/*----------------------------------------------------------------*/