summaryrefslogtreecommitdiff
path: root/lib/find_bit.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2019-12-17 14:28:02 +0300
committerIngo Molnar <mingo@kernel.org>2019-12-17 14:28:02 +0300
commit57e04eeda515ee979fec3bc3d64c408feae18acc (patch)
treef18d4d0885211ee7bd543a2363c035a290037556 /lib/find_bit.c
parent0f60a0bcc1b96d531fa623ab520f863f1292c75b (diff)
parent58b3bafff8257c6946df5d6aeb215b8ac839ed2a (diff)
downloadlinux-57e04eeda515ee979fec3bc3d64c408feae18acc.tar.xz
Merge tag 'perf-urgent-for-mingo-5.5-20191216' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes: perf top: Arnaldo Carvalho de Melo: - Do not bail out when perf_env__read_cpuid() returns ENOSYS, which has been reported happening on aarch64. perf metricgroup: Kajol Jain: - Fix printing event names of metric group with multiple events vendor events: x86: Ravi Bangoria: - Fix Kernel_Utilization metric. s390: Ed Maste: - Fix counter long description for DTLB1_GPAGE_WRITES and L1D_RO_EXCL_WRITES. perf header: Michael Petlan: - Fix false warning when there are no duplicate cache entries libtraceevent: Sudip Mukherjee: - Allow custom libdir path API headers: Arnaldo Carvalho de Melo: - Sync linux/kvm.h with the kernel sources. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'lib/find_bit.c')
-rw-r--r--lib/find_bit.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/find_bit.c b/lib/find_bit.c
index 5c51eb45178a..e35a76b291e6 100644
--- a/lib/find_bit.c
+++ b/lib/find_bit.c
@@ -214,3 +214,17 @@ EXPORT_SYMBOL(find_next_bit_le);
#endif
#endif /* __BIG_ENDIAN */
+
+unsigned long find_next_clump8(unsigned long *clump, const unsigned long *addr,
+ unsigned long size, unsigned long offset)
+{
+ offset = find_next_bit(addr, size, offset);
+ if (offset == size)
+ return size;
+
+ offset = round_down(offset, 8);
+ *clump = bitmap_get_value8(addr, offset);
+
+ return offset;
+}
+EXPORT_SYMBOL(find_next_clump8);