diff options
| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2016-01-22 15:11:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-01-22 17:02:18 -0800 |
| commit | 1d5cfdb076288df5eb95545a547a39905e95c930 (patch) | |
| tree | c644d2e609c3054833710b75ab1d0fe50fb17c01 /arch/arm/mm/dma-mapping.c | |
| parent | eab95db69d334745d3034072f4a7204084136c88 (diff) | |
tree wide: use kvfree() than conditional kfree()/vfree()
There are many locations that do
if (memory_was_allocated_by_vmalloc)
vfree(ptr);
else
kfree(ptr);
but kvfree() can handle both kmalloc()ed memory and vmalloc()ed memory
using is_vmalloc_addr(). Unless callers have special reasons, we can
replace this branch with kvfree(). Please check and reply if you found
problems.
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jan Kara <jack@suse.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: Boris Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 534a60ae282e..0eca3812527e 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1200,10 +1200,7 @@ error: while (i--) if (pages[i]) __free_pages(pages[i], 0); - if (array_size <= PAGE_SIZE) - kfree(pages); - else - vfree(pages); + kvfree(pages); return NULL; } @@ -1211,7 +1208,6 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages, size_t size, struct dma_attrs *attrs) { int count = size >> PAGE_SHIFT; - int array_size = count * sizeof(struct page *); int i; if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) { @@ -1222,10 +1218,7 @@ static int __iommu_free_buffer(struct device *dev, struct page **pages, __free_pages(pages[i], 0); } - if (array_size <= PAGE_SIZE) - kfree(pages); - else - vfree(pages); + kvfree(pages); return 0; } |