[dm-devel] [PATCH] Allocate only once the EMC-clariion global checker's stage area instead of multiple times.

[Konrad Rzeszutek]

The multi-path global context on every path checker init would be
set. In scenarios where you have four paths per multipath, that context
would be set four times instead of once causing a small memory leak
(4 bytes per block disk).
---
 libmultipath/checkers/emc_clariion.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/libmultipath/checkers/emc_clariion.c b/libmultipath/checkers/emc_clariion.c
index 200daee..08c9c26 100644
--- a/libmultipath/checkers/emc_clariion.c
+++ b/libmultipath/checkers/emc_clariion.c
@@ -76,7 +76,7 @@ int libcheck_init (struct checker * c)
 	/*
 	 * Allocate and initialize the multi-path global context.
 	 */
-	if (c->mpcontext) {
+	if (c->mpcontext && *c->mpcontext == NULL) {
 		void * mpctxt = MALLOC(sizeof(int));
 		*c->mpcontext = mpctxt;
 		CLR_INACTIVE_SNAP(c);
-- 
1.5.4.1