diff options
| author | Tejun Heo <tj@kernel.org> | 2014-11-22 09:32:08 -0500 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2014-11-22 09:32:08 -0500 |
| commit | cceb9bd63373061ad7b75c321808a2fb11c86545 (patch) | |
| tree | a70d939eabed2e19538707402441644dfc26990e /lib/bitmap.c | |
| parent | 56e4dea81a55c338eede625f715c7fa21f1a28c4 (diff) | |
| parent | 8a84e01e147f44111988f9d8ccd2eaa30215a0f2 (diff) | |
Merge branch 'master' into for-3.19
Pull in to receive 54ef6df3f3f1 ("rcu: Provide counterpart to
rcu_dereference() for non-RCU situations").
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'lib/bitmap.c')
| -rw-r--r-- | lib/bitmap.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index cd250a2e14cb1..b499ab6ada29a 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -131,7 +131,9 @@ void __bitmap_shift_right(unsigned long *dst, lower = src[off + k]; if (left && off + k == lim - 1) lower &= mask; - dst[k] = upper << (BITS_PER_LONG - rem) | lower >> rem; + dst[k] = lower >> rem; + if (rem) + dst[k] |= upper << (BITS_PER_LONG - rem); if (left && k == lim - 1) dst[k] &= mask; } @@ -172,7 +174,9 @@ void __bitmap_shift_left(unsigned long *dst, upper = src[k]; if (left && k == lim - 1) upper &= (1UL << left) - 1; - dst[k + off] = lower >> (BITS_PER_LONG - rem) | upper << rem; + dst[k + off] = upper << rem; + if (rem) + dst[k + off] |= lower >> (BITS_PER_LONG - rem); if (left && k + off == lim - 1) dst[k + off] &= (1UL << left) - 1; } |