diff options
| author | Kukjin Kim <kgene.kim@samsung.com> | 2013-04-08 16:10:13 (GMT) |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2013-04-08 16:10:13 (GMT) |
| commit | da821eb7d42935b0f7056d98c75fd1150f6636f4 (patch) | |
| tree | de83ac171d51bbe7621110c3145a68c198b13711 /drivers/md/dm-thin.c | |
| parent | 296f3f2c9322480400338f71d8c118107f9a7f20 (diff) | |
| parent | 07961ac7c0ee8b546658717034fe692fd12eefa9 (diff) | |
| download | linux-da821eb7d42935b0f7056d98c75fd1150f6636f4.tar.xz | |
Merge commit 'v3.9-rc5' into next/clk-exynos
Conflicts:
arch/arm/boot/dts/exynos4.dtsi
arch/arm/boot/dts/exynos5440.dtsi
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 009339d..004ad165 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, |