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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-03 23:49:26 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-03 23:49:26 +0200 |
| commit | 57a9d89dc093d86920748fa706fd55f4fcd2399a (patch) | |
| tree | 9f0e1fe5ffb42713f381739d0140e8ae677375e3 /lib | |
| parent | Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/ker... (diff) | |
| parent | block: fix blk_stack_limits() regression due to lcm() change (diff) | |
| download | linux-57a9d89dc093d86920748fa706fd55f4fcd2399a.tar.xz linux-57a9d89dc093d86920748fa706fd55f4fcd2399a.zip | |
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block layer fix from Jens Axboe:
"Just one patch in this pull request, fixing a regression caused by a
'mathematically correct' change to lcm()"
* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix blk_stack_limits() regression due to lcm() change
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/lcm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/lib/lcm.c b/lib/lcm.c index e97dbd51e756..03d7fcb420b5 100644 --- a/lib/lcm.c +++ b/lib/lcm.c @@ -12,3 +12,14 @@ unsigned long lcm(unsigned long a, unsigned long b) return 0; } EXPORT_SYMBOL_GPL(lcm); + +unsigned long lcm_not_zero(unsigned long a, unsigned long b) +{ + unsigned long l = lcm(a, b); + + if (l) + return l; + + return (b ? : a); +} +EXPORT_SYMBOL_GPL(lcm_not_zero); |