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| author | Karel Zak | 2010-10-15 01:33:28 +0200 |
|---|---|---|
| committer | Karel Zak | 2010-10-15 01:33:28 +0200 |
| commit | 973af806428c0f853ac0241ab46faee6ccdaab26 (patch) | |
| tree | 11842f1a0054c5fd867d56d64339e4fa87c90ee4 /include/c.h | |
| parent | libblkid: consolidate magic strings detection code (diff) | |
| download | kernel-qcow2-util-linux-973af806428c0f853ac0241ab46faee6ccdaab26.tar.gz kernel-qcow2-util-linux-973af806428c0f853ac0241ab46faee6ccdaab26.tar.xz kernel-qcow2-util-linux-973af806428c0f853ac0241ab46faee6ccdaab26.zip | |
libblkid: fix MBR detection on iPod and cleanup vfat code
- move all FAT code to superblocks/vfat.c only
- add a generic function to verify FAT superblock and use it
in FAT prober as well as in MBR parser
- add a more robust FAT cluster_count check
(it seems that iPod contains an "almost valid" FAT superblock before MBR)
Reported-by: Davidlohr Bueso <dave.bueso@gmail.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
Diffstat (limited to 'include/c.h')
| -rw-r--r-- | include/c.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/c.h b/include/c.h index 577b8a809..bed8f5ba0 100644 --- a/include/c.h +++ b/include/c.h @@ -62,4 +62,10 @@ _max1 > _max2 ? _max1 : _max2; }) #endif +static inline __attribute__((const)) int is_power_of_2(unsigned long num) +{ + return (num != 0 && ((num & (num - 1)) == 0)); +} + + #endif /* UTIL_LINUX_C_H */ |