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| author | Yunfeng Ye <yeyunfeng@huawei.com> | 2019-11-30 17:57:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-01 12:59:09 -0800 |
| commit | 2184f9928ab52f26c2ae5e9ba37faf29c78f50b8 (patch) | |
| tree | be4a75d56f77031775701cba8e1bd73c3195616e | |
| parent | 75f360696ce9d8ec8b253452b23b3e24c0689b4b (diff) | |
| download | lwn-2184f9928ab52f26c2ae5e9ba37faf29c78f50b8.tar.gz lwn-2184f9928ab52f26c2ae5e9ba37faf29c78f50b8.zip | |
mm/cma.c: switch to bitmap_zalloc() for cma bitmap allocation
kzalloc() is used for cma bitmap allocation in cma_activate_area(),
switch to bitmap_zalloc() for clarity.
Link: http://lkml.kernel.org/r/895d4627-f115-c77a-d454-c0a196116426@huawei.com
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Yue Hu <huyue2@yulong.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ryohei Suzuki <ryh.szk.cmnty@gmail.com>
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: Doug Berger <opendmb@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/cma.c | 6 |
1 files changed, 2 insertions, 4 deletions
@@ -95,13 +95,11 @@ static void cma_clear_bitmap(struct cma *cma, unsigned long pfn, static int __init cma_activate_area(struct cma *cma) { - int bitmap_size = BITS_TO_LONGS(cma_bitmap_maxno(cma)) * sizeof(long); unsigned long base_pfn = cma->base_pfn, pfn = base_pfn; unsigned i = cma->count >> pageblock_order; struct zone *zone; - cma->bitmap = kzalloc(bitmap_size, GFP_KERNEL); - + cma->bitmap = bitmap_zalloc(cma_bitmap_maxno(cma), GFP_KERNEL); if (!cma->bitmap) { cma->count = 0; return -ENOMEM; @@ -139,7 +137,7 @@ static int __init cma_activate_area(struct cma *cma) not_in_zone: pr_err("CMA area %s could not be activated\n", cma->name); - kfree(cma->bitmap); + bitmap_free(cma->bitmap); cma->count = 0; return -EINVAL; } |