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| author | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
| commit | e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30 (patch) | |
| tree | 77926550ac0c31b1423bcf193a4ed0ecb7fda2c1 /lib/bitmap.c | |
| parent | x86, microcode rework, v2, renaming cont. (diff) | |
| parent | Linux 2.6.27-rc7 (diff) | |
| download | linux-e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30.tar.xz linux-e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30.zip | |
Merge commit 'v2.6.27-rc7' into x86/microcode
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 482df94ea21e..06fb57c86de0 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -316,6 +316,17 @@ int bitmap_scnprintf(char *buf, unsigned int buflen, EXPORT_SYMBOL(bitmap_scnprintf); /** + * bitmap_scnprintf_len - return buffer length needed to convert + * bitmap to an ASCII hex string + * @nr_bits: number of bits to be converted + */ +int bitmap_scnprintf_len(unsigned int nr_bits) +{ + unsigned int nr_nibbles = ALIGN(nr_bits, 4) / 4; + return nr_nibbles + ALIGN(nr_nibbles, CHUNKSZ / 4) / (CHUNKSZ / 4) - 1; +} + +/** * __bitmap_parse - convert an ASCII hex string into a bitmap. * @buf: pointer to buffer containing string. * @buflen: buffer size in bytes. If string is smaller than this |