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| author | WANG Chao <chao.wang@ucloud.cn> | 2019-04-18 03:41:14 +0000 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-04-20 12:16:52 +0200 |
| commit | 09cbd2197e9291d6a3d3f42873f06ca1f388c1a4 (patch) | |
| tree | 5626f4de88e0d5341a7b9d86f4aa5d16d226c50f /drivers/ras | |
| parent | 28156d7678431312b463361b23a218a1b5645ba5 (diff) | |
| download | lwn-09cbd2197e9291d6a3d3f42873f06ca1f388c1a4.tar.gz lwn-09cbd2197e9291d6a3d3f42873f06ca1f388c1a4.zip | |
RAS/CEC: Increment cec_entered under the mutex lock
Modify ->cec_entered in the critical section of the mutex.
Signed-off-by: WANG Chao <chao.wang@ucloud.cn>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: https://lkml.kernel.org/r/20190418034115.75954-2-chao.wang@ucloud.cn
Diffstat (limited to 'drivers/ras')
| -rw-r--r-- | drivers/ras/cec.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c index 2d9ec378a8bc..88e4f3ff0cb8 100644 --- a/drivers/ras/cec.c +++ b/drivers/ras/cec.c @@ -286,10 +286,10 @@ int cec_add_elem(u64 pfn) if (!ce_arr.array || ce_arr.disabled) return -ENODEV; - ca->ces_entered++; - mutex_lock(&ce_mutex); + ca->ces_entered++; + if (ca->n == MAX_ELEMS) WARN_ON(!del_lru_elem_unlocked(ca)); |