evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Merge "zsmalloc: use bit_spin_lock"

Browse source
This commit is contained in:
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
Show stats Download patch file Download diff file Expand all files Collapse all files

10
mm/zsmalloc.c
View file

@ -868,21 +868,17 @@ static unsigned long obj_idx_to_offset(struct page *page,
static inline int trypin_tag(unsigned long handle)
{
unsigned long *ptr = (unsigned long *)handle;
return !test_and_set_bit_lock(HANDLE_PIN_BIT, ptr);
return bit_spin_trylock(HANDLE_PIN_BIT, (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)
{
unsigned long *ptr = (unsigned long *)handle;
clear_bit_unlock(HANDLE_PIN_BIT, ptr);
bit_spin_unlock(HANDLE_PIN_BIT, (unsigned long *)handle);
}
static void reset_page(struct page *page)