evie/android_kernel_oneplus_msm8998
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Merge "zsmalloc: use bit_spin_lock"

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Linux Build Service Account 2017-02-25 01:09:49 -08:00 • committed by Gerrit - the friendly Code Review server
commit 88cb62f261
1 changed files with 3 additions and 7 deletions
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mm/zsmalloc.c
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@ -868,21 +868,17 @@ static unsigned long obj_idx_to_offset(struct page *page,
static inline int trypin_tag(unsigned long handle) static inline int trypin_tag(unsigned long handle)
{ {
unsigned long *ptr = (unsigned long *)handle; return bit_spin_trylock(HANDLE_PIN_BIT, (unsigned long *)handle);
return !test_and_set_bit_lock(HANDLE_PIN_BIT, ptr);
} }
static void pin_tag(unsigned long handle) static void pin_tag(unsigned long handle)
{ {
while (!trypin_tag(handle)); bit_spin_lock(HANDLE_PIN_BIT, (unsigned long *)handle);
} }
static void unpin_tag(unsigned long handle) static void unpin_tag(unsigned long handle)
{ {
unsigned long *ptr = (unsigned long *)handle; bit_spin_unlock(HANDLE_PIN_BIT, (unsigned long *)handle);
clear_bit_unlock(HANDLE_PIN_BIT, ptr);
} }
static void reset_page(struct page *page) static void reset_page(struct page *page)