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Date: Tue, 19 Jun 2012 16:32:46 +0800 From: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com> To: Andrew Morton <akpm@...ux-foundation.org> CC: Seth Jennings <sjenning@...ux.vnet.ibm.com>, Dan Magenheimer <dan.magenheimer@...cle.com>, LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org Subject: [PATCH 01/10] zcache: fix preemptable memory allocation in atomic context 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@...ux.vnet.ibm.com> --- 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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