diff options
| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-12-15 16:48:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:19 -0800 |
| commit | e756fd8080622998007b592bd33f86cecf56587a (patch) | |
| tree | a39e0bea4984e28fedefb196ebaf1a95e89778fc /arch/sparc/kernel | |
| parent | 43ff8b60853793fb0155b3e465739d2170c3aa2f (diff) | |
sparc: use bitmap_find_next_zero_area
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/ldc.c | 16 |
1 files changed, 4 insertions, 12 deletions
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index e0ba898e30c..df39a0f0d27 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -14,6 +14,7 @@ #include <linux/interrupt.h> #include <linux/list.h> #include <linux/init.h> +#include <linux/bitmap.h> #include <asm/hypervisor.h> #include <asm/iommu.h> @@ -1875,7 +1876,7 @@ EXPORT_SYMBOL(ldc_read); static long arena_alloc(struct ldc_iommu *iommu, unsigned long npages) { struct iommu_arena *arena = &iommu->arena; - unsigned long n, i, start, end, limit; + unsigned long n, start, end, limit; int pass; limit = arena->limit; @@ -1883,7 +1884,7 @@ static long arena_alloc(struct ldc_iommu *iommu, unsigned long npages) pass = 0; again: - n = find_next_zero_bit(arena->map, limit, start); + n = bitmap_find_next_zero_area(arena->map, limit, start, npages, 0); end = n + npages; if (unlikely(end >= limit)) { if (likely(pass < 1)) { @@ -1896,16 +1897,7 @@ again: return -1; } } - - for (i = n; i < end; i++) { - if (test_bit(i, arena->map)) { - start = i + 1; - goto again; - } - } - - for (i = n; i < end; i++) - __set_bit(i, arena->map); + bitmap_set(arena->map, n, npages); arena->hint = end; |