The patch titled
Subject: zsmalloc: zspage sanity check
has been added to the -mm tree. Its filename is
zsmalloc-page-migration-support-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/zsmalloc-page-migration-support-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/zsmalloc-page-migration-support-fix.patch
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------------------------------------------------------
From: Minchan Kim <minchan@xxxxxxxxxx>
Subject: zsmalloc: zspage sanity check
The zsmalloc page migration is new feature so I want to catch any
corruption of zspage struct which is very critical to work regardless of
CONFIG_DEBUG_VM.
Link: http://lkml.kernel.org/r/20160603010129.GC3304@bbox
Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Sergey Senozhatsky <sergey.senozhatsky@xxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/zsmalloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/zsmalloc.c~zsmalloc-page-migration-support-fix mm/zsmalloc.c
--- a/mm/zsmalloc.c~zsmalloc-page-migration-support-fix
+++ a/mm/zsmalloc.c
@@ -523,7 +523,7 @@ static void get_zspage_mapping(struct zs
unsigned int *class_idx,
enum fullness_group *fullness)
{
- VM_BUG_ON(zspage->magic != ZSPAGE_MAGIC);
+ BUG_ON(zspage->magic != ZSPAGE_MAGIC);
*fullness = zspage->fullness;
*class_idx = zspage->class;
@@ -857,7 +857,7 @@ static struct zspage *get_zspage(struct
{
struct zspage *zspage = (struct zspage *)page->private;
- VM_BUG_ON(zspage->magic != ZSPAGE_MAGIC);
+ BUG_ON(zspage->magic != ZSPAGE_MAGIC);
return zspage;
}
_
Patches currently in -mm which might be from minchan@xxxxxxxxxx are
mm-use-put_page-to-free-page-instead-of-putback_lru_page.patch
mm-migrate-support-non-lru-movable-page-migration.patch
mm-balloon-use-general-non-lru-movable-page-feature.patch
zsmalloc-keep-max_object-in-size_class.patch
zsmalloc-use-bit_spin_lock.patch
zsmalloc-use-accessor.patch
zsmalloc-factor-page-chain-functionality-out.patch
zsmalloc-introduce-zspage-structure.patch
zsmalloc-separate-free_zspage-from-putback_zspage.patch
zsmalloc-use-freeobj-for-index.patch
zsmalloc-page-migration-support.patch
zsmalloc-page-migration-support-fix.patch
zram-use-__gfp_movable-for-memory-allocation.patch
mm-add-nr_zsmalloc-to-vmstat.patch
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