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authorYury Norov <yury.norov@gmail.com>2021-08-14 23:17:03 +0200
committerYury Norov <yury.norov@gmail.com>2022-01-15 17:47:31 +0100
commitb5c7e7ec7d3418af2544452b45cc67297c857a86 (patch)
tree1b2d0bd3d0852b65d73b65982d4b8f69c27703e7 /arch
parentcpumask: use find_first_and_bit() (diff)
downloadlinux-b5c7e7ec7d3418af2544452b45cc67297c857a86.tar.xz
linux-b5c7e7ec7d3418af2544452b45cc67297c857a86.zip
all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate
find_first{,_zero}_bit is a more effective analogue of 'next' version if start == 0. This patch replaces 'next' with 'first' where things look trivial. Signed-off-by: Yury Norov <yury.norov@gmail.com> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/platforms/pasemi/dma_lib.c4
-rw-r--r--arch/s390/kvm/kvm-s390.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pasemi/dma_lib.c b/arch/powerpc/platforms/pasemi/dma_lib.c
index 270fa3c0d372..26427311fc72 100644
--- a/arch/powerpc/platforms/pasemi/dma_lib.c
+++ b/arch/powerpc/platforms/pasemi/dma_lib.c
@@ -375,7 +375,7 @@ int pasemi_dma_alloc_flag(void)
int bit;
retry:
- bit = find_next_bit(flags_free, MAX_FLAGS, 0);
+ bit = find_first_bit(flags_free, MAX_FLAGS);
if (bit >= MAX_FLAGS)
return -ENOSPC;
if (!test_and_clear_bit(bit, flags_free))
@@ -440,7 +440,7 @@ int pasemi_dma_alloc_fun(void)
int bit;
retry:
- bit = find_next_bit(fun_free, MAX_FLAGS, 0);
+ bit = find_first_bit(fun_free, MAX_FLAGS);
if (bit >= MAX_FLAGS)
return -ENOSPC;
if (!test_and_clear_bit(bit, fun_free))
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 14a18ba5ff2c..9aba96d621b9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2021,7 +2021,7 @@ static unsigned long kvm_s390_next_dirty_cmma(struct kvm_memslots *slots,
while ((slotidx > 0) && (ofs >= ms->npages)) {
slotidx--;
ms = slots->memslots + slotidx;
- ofs = find_next_bit(kvm_second_dirty_bitmap(ms), ms->npages, 0);
+ ofs = find_first_bit(kvm_second_dirty_bitmap(ms), ms->npages);
}
return ms->base_gfn + ofs;
}