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author | Ingo Molnar <mingo@kernel.org> | 2016-08-18 18:41:12 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-08-18 18:41:12 +0200 |
commit | f594d0b9b34aeb8e3ffa524eaa8a4085afb56d22 (patch) | |
tree | 7ef81ad042bcfe78dc0f41e05cebfdbc268871c4 /include/linux/page_ref.h | |
parent | b3830e8d478cd9fe33e820425ce431c8ef280967 (diff) | |
parent | 7b0501b1e7cddd32b265178e32d332bdfbb532d4 (diff) |
Merge branch 'x86/urgent' into x86/asm, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/page_ref.h')
-rw-r--r-- | include/linux/page_ref.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/page_ref.h b/include/linux/page_ref.h index 8b5e0a9f2431..610e13271918 100644 --- a/include/linux/page_ref.h +++ b/include/linux/page_ref.h @@ -124,6 +124,15 @@ static inline int page_ref_sub_and_test(struct page *page, int nr) return ret; } +static inline int page_ref_inc_return(struct page *page) +{ + int ret = atomic_inc_return(&page->_refcount); + + if (page_ref_tracepoint_active(__tracepoint_page_ref_mod_and_return)) + __page_ref_mod_and_return(page, 1, ret); + return ret; +} + static inline int page_ref_dec_and_test(struct page *page) { int ret = atomic_dec_and_test(&page->_refcount); |