diff options
| author | Joe Thornber <ejt@redhat.com> | 2016-09-15 15:23:46 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2016-09-22 17:15:02 +0200 |
| commit | 4e781b498ee5008ede91362d91404a362e7a46b3 (patch) | |
| tree | 039f3914f839b455759253fb0395a639a1912dae /drivers/md/dm-cache-policy-cleaner.c | |
| parent | dm array: add dm_array_new() (diff) | |
| download | linux-4e781b498ee5008ede91362d91404a362e7a46b3.tar.xz linux-4e781b498ee5008ede91362d91404a362e7a46b3.zip | |
dm cache: speed up writing of the hint array
It's far quicker to always delete the hint array and recreate with
dm_array_new() because we avoid the copying caused by mutation.
Also simplifies the policy interface, replacing the walk_hints() with
the simpler get_hint().
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-cache-policy-cleaner.c')
| -rw-r--r-- | drivers/md/dm-cache-policy-cleaner.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-cache-policy-cleaner.c b/drivers/md/dm-cache-policy-cleaner.c index 14aaaf059f06..2e8a8f1d8358 100644 --- a/drivers/md/dm-cache-policy-cleaner.c +++ b/drivers/md/dm-cache-policy-cleaner.c @@ -395,7 +395,7 @@ static void init_policy_functions(struct policy *p) p->policy.set_dirty = wb_set_dirty; p->policy.clear_dirty = wb_clear_dirty; p->policy.load_mapping = wb_load_mapping; - p->policy.walk_mappings = NULL; + p->policy.get_hint = NULL; p->policy.remove_mapping = wb_remove_mapping; p->policy.writeback_work = wb_writeback_work; p->policy.force_mapping = wb_force_mapping; |