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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-12 16:36:31 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-12 16:36:31 -0800 |
| commit | 802ea9d8645d33d24b7b4cd4537c14f3e698bde0 (patch) | |
| tree | 9a51a21025fa9a38263aa44883ea2b6af823ea05 /drivers/md/dm-cache-target.c | |
| parent | 8494bcf5b7c4b2416687e233dd34d4c6b6fe5653 (diff) | |
| parent | a4afe76b2b922e6197944d7be0be7a18b53175ae (diff) | |
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.c | 5 |
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) |