Re: [PATCH] mm/ksm: return NULL when doesn't get mergeable page

2013-09-21 Thread Jianguo Wu
On 2013/9/19 16:33, Petr Holasek wrote: > On Mon, 16 Sep 2013, Jianguo Wu wrote: >> In get_mergeable_page() local variable page is not initialized, >> it may hold a garbage value, when find_mergeable_vma() return NULL, >> get_mergeable_page() may return a garbage value to the caller. >> >> So init

Re: [PATCH] mm/ksm: return NULL when doesn't get mergeable page

2013-09-19 Thread Petr Holasek
On Mon, 16 Sep 2013, Jianguo Wu wrote: > In get_mergeable_page() local variable page is not initialized, > it may hold a garbage value, when find_mergeable_vma() return NULL, > get_mergeable_page() may return a garbage value to the caller. > > So initialize page as NULL. > > Signed-off-by: Jiangu

[PATCH] mm/ksm: return NULL when doesn't get mergeable page

2013-09-16 Thread Jianguo Wu
In get_mergeable_page() local variable page is not initialized, it may hold a garbage value, when find_mergeable_vma() return NULL, get_mergeable_page() may return a garbage value to the caller. So initialize page as NULL. Signed-off-by: Jianguo Wu --- mm/ksm.c |2 +- 1 files changed, 1 ins