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| author | Michal Hocko <mhocko@suse.com> | 2017-05-08 15:57:37 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-08 17:15:13 -0700 |
| commit | bc4e54f6e966e9ca35064cd60f91b1478c07a1b2 (patch) | |
| tree | 125ce2441c6a621067bcf346c8cc6a04aef2b1b7 /drivers/md/bcache/super.c | |
| parent | d224e938189771dbd1e3b68ee8603a949bee76bb (diff) | |
| download | linux-bc4e54f6e966e9ca35064cd60f91b1478c07a1b2.tar.gz linux-bc4e54f6e966e9ca35064cd60f91b1478c07a1b2.tar.bz2 linux-bc4e54f6e966e9ca35064cd60f91b1478c07a1b2.zip | |
drivers/md/bcache/super.c: use kvmalloc
bcache_device_init uses kmalloc for small requests and vmalloc for those
which are larger than 64 pages. This alone is a strange criterion.
Moreover kmalloc can fallback to vmalloc on the failure. Let's simply
use kvmalloc instead as it knows how to handle the fallback properly
Link: http://lkml.kernel.org/r/20170306103327.2766-5-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/md/bcache/super.c')
| -rw-r--r-- | drivers/md/bcache/super.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index 85e3f21c2514..e57353e39168 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -767,16 +767,12 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size, } n = d->nr_stripes * sizeof(atomic_t); - d->stripe_sectors_dirty = n < PAGE_SIZE << 6 - ? kzalloc(n, GFP_KERNEL) - : vzalloc(n); + d->stripe_sectors_dirty = kvzalloc(n, GFP_KERNEL); if (!d->stripe_sectors_dirty) return -ENOMEM; n = BITS_TO_LONGS(d->nr_stripes) * sizeof(unsigned long); - d->full_dirty_stripes = n < PAGE_SIZE << 6 - ? kzalloc(n, GFP_KERNEL) - : vzalloc(n); + d->full_dirty_stripes = kvzalloc(n, GFP_KERNEL); if (!d->full_dirty_stripes) return -ENOMEM; |