diff options
| author | Joe Thornber <ejt@redhat.com> | 2015-05-15 16:22:02 +0200 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-05-29 20:19:05 +0200 |
| commit | 451b9e0071b2833744db7f518115bc085bc7b23c (patch) | |
| tree | 40f56515e7d9f5c125e6b4d088729737b648c466 /drivers/md/dm-cache-target.c | |
| parent | dm cache: pass a new 'critical' flag to the policies when requesting writebac... (diff) | |
| download | linux-451b9e0071b2833744db7f518115bc085bc7b23c.tar.xz linux-451b9e0071b2833744db7f518115bc085bc7b23c.zip | |
dm cache: pull out some bitset utility functions for reuse
Signed-off-by: Joe Thornber <ejt@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.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 5a9cd2c5a359..5d3b20b91ba3 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -111,30 +111,6 @@ static void iot_io_end(struct io_tracker *iot, sector_t len) /*----------------------------------------------------------------*/ -static size_t bitset_size_in_bytes(unsigned nr_entries) -{ - return sizeof(unsigned long) * dm_div_up(nr_entries, BITS_PER_LONG); -} - -static unsigned long *alloc_bitset(unsigned nr_entries) -{ - size_t s = bitset_size_in_bytes(nr_entries); - return vzalloc(s); -} - -static void clear_bitset(void *bitset, unsigned nr_entries) -{ - size_t s = bitset_size_in_bytes(nr_entries); - memset(bitset, 0, s); -} - -static void free_bitset(unsigned long *bits) -{ - vfree(bits); -} - -/*----------------------------------------------------------------*/ - /* * There are a couple of places where we let a bio run, but want to do some * work before calling its endio function. We do this by temporarily |