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xen: replace ffsl with ctzl

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ffsl is a GNU extension and not available in musl libc.

See also commit fbeadf50 (bitops: unify bitops_ffsl with the one in
host-utils.h, call it bitops_ctzl) on why ctzl should be used instead
of ffsl.

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
[PMM: rebased to accommodate file rename to xen-hvm.c]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Natanael Copa 2014-04-29 16:17:28 +02:00 committed by Peter Maydell
parent 6ad3f09bd4
commit adf9d70b0d
1 changed files with 1 additions and 1 deletions
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2
xen-hvm.c
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@ -511,7 +511,7 @@ static void xen_sync_dirty_bitmap(XenIOState *state,
for (i = 0; i < ARRAY_SIZE(bitmap); i++) {
unsigned long map = bitmap[i];
while (map != 0) {
j = ffsl(map) - 1;
j = ctzl(map);
map &= ~(1ul << j);
memory_region_set_dirty(framebuffer,
(i * width + j) * TARGET_PAGE_SIZE,