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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 23:10:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-05 23:10:54 -0800
commit2e3078af2c67730c479f1d183af5b367f5d95337 (patch)
treeb7881c6c9c479aadac345df7e18e3c0e10f0811e /mm/page_counter.c
parentea5c58e70c3a148ada0d3061a8f529589bb766ba (diff)
parentb3b0d09c7a2330759ac293f5269bd932439ea0ff (diff)
Merge branch 'akpm' (patches from Andrew)
Merge patch-bomb from Andrew Morton: - inotify tweaks - some ocfs2 updates (many more are awaiting review) - various misc bits - kernel/watchdog.c updates - Some of mm. I have a huge number of MM patches this time and quite a lot of it is quite difficult and much will be held over to next time. * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (162 commits) selftests: vm: add tests for lock on fault mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage mm: introduce VM_LOCKONFAULT mm: mlock: add new mlock system call mm: mlock: refactor mlock, munlock, and munlockall code kasan: always taint kernel on report mm, slub, kasan: enable user tracking by default with KASAN=y kasan: use IS_ALIGNED in memory_is_poisoned_8() kasan: Fix a type conversion error lib: test_kasan: add some testcases kasan: update reference to kasan prototype repo kasan: move KASAN_SANITIZE in arch/x86/boot/Makefile kasan: various fixes in documentation kasan: update log messages kasan: accurately determine the type of the bad access kasan: update reported bug types for kernel memory accesses kasan: update reported bug types for not user nor kernel memory accesses mm/kasan: prevent deadlock in kasan reporting mm/kasan: don't use kasan shadow pointer in generic functions mm/kasan: MODULE_VADDR is not available on all archs ...
Diffstat (limited to 'mm/page_counter.c')
-rw-r--r--mm/page_counter.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/page_counter.c b/mm/page_counter.c
index 11b4beda14ba..7c6a63d2c27f 100644
--- a/mm/page_counter.c
+++ b/mm/page_counter.c
@@ -56,12 +56,12 @@ void page_counter_charge(struct page_counter *counter, unsigned long nr_pages)
* @nr_pages: number of pages to charge
* @fail: points first counter to hit its limit, if any
*
- * Returns 0 on success, or -ENOMEM and @fail if the counter or one of
- * its ancestors has hit its configured limit.
+ * Returns %true on success, or %false and @fail if the counter or one
+ * of its ancestors has hit its configured limit.
*/
-int page_counter_try_charge(struct page_counter *counter,
- unsigned long nr_pages,
- struct page_counter **fail)
+bool page_counter_try_charge(struct page_counter *counter,
+ unsigned long nr_pages,
+ struct page_counter **fail)
{
struct page_counter *c;
@@ -99,13 +99,13 @@ int page_counter_try_charge(struct page_counter *counter,
if (new > c->watermark)
c->watermark = new;
}
- return 0;
+ return true;
failed:
for (c = counter; c != *fail; c = c->parent)
page_counter_cancel(c, nr_pages);
- return -ENOMEM;
+ return false;
}
/**