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authorLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 03:36:31 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-13 03:36:31 +0300
commit802ea9d8645d33d24b7b4cd4537c14f3e698bde0 (patch)
tree9a51a21025fa9a38263aa44883ea2b6af823ea05 /drivers/md/dm-cache-target.c
parent8494bcf5b7c4b2416687e233dd34d4c6b6fe5653 (diff)
parenta4afe76b2b922e6197944d7be0be7a18b53175ae (diff)
downloadlinux-802ea9d8645d33d24b7b4cd4537c14f3e698bde0.tar.xz
Merge tag 'dm-3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper changes from Mike Snitzer: - The most significant change this cycle is request-based DM now supports stacking ontop of blk-mq devices. This blk-mq support changes the model request-based DM uses for cloning a request to relying on calling blk_get_request() directly from the underlying blk-mq device. An early consumer of this code is Intel's emerging NVMe hardware; thanks to Keith Busch for working on, and pushing for, these changes. - A few other small fixes and cleanups across other DM targets. * tag 'dm-3.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm: inherit QUEUE_FLAG_SG_GAPS flags from underlying queues dm snapshot: remove unnecessary NULL checks before vfree() calls dm mpath: simplify failure path of dm_multipath_init() dm thin metadata: remove unused dm_pool_get_data_block_size() dm ioctl: fix stale comment above dm_get_inactive_table() dm crypt: update url in CONFIG_DM_CRYPT help text dm bufio: fix time comparison to use time_after_eq() dm: use time_in_range() and time_after() dm raid: fix a couple integer overflows dm table: train hybrid target type detection to select blk-mq if appropriate dm: allocate requests in target when stacking on blk-mq devices dm: prepare for allocating blk-mq clone requests in target dm: submit stacked requests in irq enabled context dm: split request structure out from dm_rq_target_io structure dm: remove exports for request-based interfaces without external callers
Diffstat (limited to 'drivers/md/dm-cache-target.c')
-rw-r--r--drivers/md/dm-cache-target.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index e1650539cc2f..7755af351867 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -11,6 +11,7 @@
#include <linux/dm-io.h>
#include <linux/dm-kcopyd.h>
+#include <linux/jiffies.h>
#include <linux/init.h>
#include <linux/mempool.h>
#include <linux/module.h>
@@ -1562,8 +1563,8 @@ static void process_bio(struct cache *cache, struct prealloc *structs,
static int need_commit_due_to_time(struct cache *cache)
{
- return jiffies < cache->last_commit_jiffies ||
- jiffies > cache->last_commit_jiffies + COMMIT_PERIOD;
+ return !time_in_range(jiffies, cache->last_commit_jiffies,
+ cache->last_commit_jiffies + COMMIT_PERIOD);
}
static int commit_if_needed(struct cache *cache)