diff options
| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-08-16 20:10:56 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-08-16 20:10:56 +0200 |
| commit | 13fe7056bebb4015c6231a07a1be4d3aebbfe979 (patch) | |
| tree | 8aefa59a61c081c402bc85f2b47c17e1374eabdd /lib/bitmap.c | |
| parent | MAINTAINERS: Add PhoenixRC Flight Controller Adapter (diff) | |
| parent | Input: do not use WARN() in input_alloc_absinfo() (diff) | |
| download | linux-13fe7056bebb4015c6231a07a1be4d3aebbfe979.tar.xz linux-13fe7056bebb4015c6231a07a1be4d3aebbfe979.zip | |
Merge branch 'next' into for-linus
Prepare input updates for 4.19 merge window.
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index a42eff7e8c48..5b476d8414be 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -13,6 +13,7 @@ #include <linux/bitops.h> #include <linux/bug.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/string.h> #include <linux/uaccess.h> @@ -1128,6 +1129,25 @@ void bitmap_copy_le(unsigned long *dst, const unsigned long *src, unsigned int n EXPORT_SYMBOL(bitmap_copy_le); #endif +unsigned long *bitmap_alloc(unsigned int nbits, gfp_t flags) +{ + return kmalloc_array(BITS_TO_LONGS(nbits), sizeof(unsigned long), + flags); +} +EXPORT_SYMBOL(bitmap_alloc); + +unsigned long *bitmap_zalloc(unsigned int nbits, gfp_t flags) +{ + return bitmap_alloc(nbits, flags | __GFP_ZERO); +} +EXPORT_SYMBOL(bitmap_zalloc); + +void bitmap_free(const unsigned long *bitmap) +{ + kfree(bitmap); +} +EXPORT_SYMBOL(bitmap_free); + #if BITS_PER_LONG == 64 /** * bitmap_from_arr32 - copy the contents of u32 array of bits to bitmap |