diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2013-04-09 15:57:27 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2013-04-09 16:02:14 +0200 |
| commit | 71f6424023cb9fa381efc7237ca05926b2b1ca9a (patch) | |
| tree | 6c3c4a2110d0ff3d73c4bacaddb23b9295663695 /drivers/md/dm-thin.c | |
| parent | 9bc128e16bb82c046d6972171de572affc5c4cbf (diff) | |
| parent | e933a1a12a02f42e0013cda87bba37ccb59efc47 (diff) | |
Merge branch 'mxs/cleanup' into next/multiplatform
This is a dependency for mxs/multiplatform
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Conflicts:
drivers/clocksource/Makefile
Diffstat (limited to 'drivers/md/dm-thin.c')
| -rw-r--r-- | drivers/md/dm-thin.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 009339d62828..004ad1652b73 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1577,6 +1577,11 @@ static bool data_dev_supports_discard(struct pool_c *pt) return q && blk_queue_discard(q); } +static bool is_factor(sector_t block_size, uint32_t n) +{ + return !sector_div(block_size, n); +} + /* * If discard_passdown was enabled verify that the data device * supports discards. Disable discard_passdown if not. @@ -1602,7 +1607,7 @@ static void disable_passdown_if_not_supported(struct pool_c *pt) else if (data_limits->discard_granularity > block_size) reason = "discard granularity larger than a block"; - else if (block_size & (data_limits->discard_granularity - 1)) + else if (!is_factor(block_size, data_limits->discard_granularity)) reason = "discard granularity not a factor of block size"; if (reason) { @@ -2544,7 +2549,7 @@ static struct target_type pool_target = { .name = "thin-pool", .features = DM_TARGET_SINGLETON | DM_TARGET_ALWAYS_WRITEABLE | DM_TARGET_IMMUTABLE, - .version = {1, 6, 1}, + .version = {1, 7, 0}, .module = THIS_MODULE, .ctr = pool_ctr, .dtr = pool_dtr, @@ -2831,7 +2836,7 @@ static int thin_iterate_devices(struct dm_target *ti, static struct target_type thin_target = { .name = "thin", - .version = {1, 7, 1}, + .version = {1, 8, 0}, .module = THIS_MODULE, .ctr = thin_ctr, .dtr = thin_dtr, |