zcache_do_preload uses ZCACHE_GFP_MASK to allocate memory that will be sleep, but zcache_do_preload is called in zcache_put_page where IRQ is disabled Fix it by use GFP_ATOMIC flag Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx> --- drivers/staging/zcache/zcache-main.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c index 03f690b..d215fb4 100644 --- a/drivers/staging/zcache/zcache-main.c +++ b/drivers/staging/zcache/zcache-main.c @@ -45,13 +45,8 @@ #include <linux/frontswap.h> #endif -#if 0 /* this is more aggressive but may cause other problems? */ #define ZCACHE_GFP_MASK (GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN) -#else -#define ZCACHE_GFP_MASK \ - (__GFP_FS | __GFP_NORETRY | __GFP_NOWARN | __GFP_NOMEMALLOC) -#endif #define MAX_POOLS_PER_CLIENT 16 -- 1.7.7.6 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>