Messages in this thread Patch in this message | | | From | weiyj_lk@163 ... | Subject | [PATCH] QE: Use GFP_ATOMIC under spin lock | Date | Fri, 5 Feb 2016 21:52:23 +0800 |
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From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
The function cpm_muram_alloc_common() is called from several places, in some of which, such as cpm_muram_alloc(), a lock is held here, so we should use GFP_ATOMIC when a lock is held.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> --- drivers/soc/fsl/qe/qe_common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/fsl/qe/qe_common.c b/drivers/soc/fsl/qe/qe_common.c index 419fa5b..d774e54 100644 --- a/drivers/soc/fsl/qe/qe_common.c +++ b/drivers/soc/fsl/qe/qe_common.c @@ -194,7 +194,7 @@ unsigned long cpm_muram_alloc_common(unsigned long size, genpool_algo_t algo, goto out2; start = start - GENPOOL_OFFSET; memset_io(cpm_muram_addr(start), 0, size); - entry = kmalloc(sizeof(*entry), GFP_KERNEL); + entry = kmalloc(sizeof(*entry), GFP_ATOMIC); if (!entry) goto out1; entry->start = start;
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