xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mm/slab: clean up DEBUG_PAGEALLOC processing code

Browse Source 
Currently, open code for checking DEBUG_PAGEALLOC cache is spread to
some sites.  It makes code unreadable and hard to change.

This patch cleans up this code.  The following patch will change the
criteria for DEBUG_PAGEALLOC cache so this clean-up will help it, too.

[akpm@linux-foundation.org: fix build with CONFIG_DEBUG_PAGEALLOC=n]
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joonsoo Kim
2016-03-15 14:54:21 -07:00
committed by Linus Torvalds
parent 40323278b5
commit 40b4413797
2 changed files with 57 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
include/linux/mm.h
View File

@@ -2195,14 +2195,18 @@ kernel_map_pages(struct page *page, int numpages, int enable)
}
#ifdef CONFIG_HIBERNATION
extern bool kernel_page_present(struct page *page);
#endif /* CONFIG_HIBERNATION */
#else
#endif /* CONFIG_HIBERNATION */
#else /* CONFIG_DEBUG_PAGEALLOC */
static inline void
kernel_map_pages(struct page *page, int numpages, int enable) {}
#ifdef CONFIG_HIBERNATION
static inline bool kernel_page_present(struct page *page) { return true; }
#endif /* CONFIG_HIBERNATION */
#endif
#endif /* CONFIG_HIBERNATION */
static inline bool debug_pagealloc_enabled(void)
{
return false;
}
#endif /* CONFIG_DEBUG_PAGEALLOC */
#ifdef __HAVE_ARCH_GATE_AREA
extern struct vm_area_struct *get_gate_vma(struct mm_struct *mm);