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File 0091-maps-Use-keyvalue-for-null-terminator-to-indicate-un.patch of Package mdadm.7989

From 5e8e35fb7e17495032e144f319517dcae38d1b56 Mon Sep 17 00:00:00 2001
From: Jes Sorensen <jsorensen@fb.com>
Date: Thu, 20 Apr 2017 00:19:44 -0400
Subject: [PATCH] maps: Use keyvalue for null terminator to indicate 'unset'
 value
Git-commit: 5e8e35fb7e17495032e144f319517dcae38d1b56
Patch-mainline: mdadm-4.0+
References: bsc#1069165, bsc#1069167, bsc#1068030

This simplifies the code calling map_name() so it no longer has to
manually check for UnSet and convert the value manually.

Signed-off-by: Jes Sorensen <jsorensen@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>

---
 maps.c  | 17 +++++++++--------
 sysfs.c |  2 --
 2 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/maps.c b/maps.c
index a2d293b..11dd3d2 100644
--- a/maps.c
+++ b/maps.c
@@ -44,7 +44,7 @@ mapping_t r5layout[] = {
 	{ "ddf-N-restart", ALGORITHM_LEFT_ASYMMETRIC},
 	{ "ddf-N-continue", ALGORITHM_LEFT_SYMMETRIC},
 
-	{ NULL, 0}
+	{ NULL, UnSet }
 };
 mapping_t r6layout[] = {
 	{ "left-asymmetric", ALGORITHM_LEFT_ASYMMETRIC},
@@ -70,7 +70,7 @@ mapping_t r6layout[] = {
 	{ "right-symmetric-6", ALGORITHM_RIGHT_SYMMETRIC_6},
 	{ "parity-first-6", ALGORITHM_PARITY_0_6},
 
-	{ NULL, 0}
+	{ NULL, UnSet }
 };
 
 mapping_t pers[] = {
@@ -93,7 +93,7 @@ mapping_t pers[] = {
 	{ "10", 10},
 	{ "faulty", LEVEL_FAULTY},
 	{ "container", LEVEL_CONTAINER},
-	{ NULL, 0}
+	{ NULL, UnSet }
 };
 
 mapping_t modes[] = {
@@ -106,7 +106,7 @@ mapping_t modes[] = {
 	{ "grow", GROW},
 	{ "incremental", INCREMENTAL},
 	{ "auto-detect", AUTODETECT},
-	{ NULL, 0 }
+	{ NULL, UnSet }
 };
 
 mapping_t faultylayout[] = {
@@ -127,7 +127,7 @@ mapping_t faultylayout[] = {
 	{ "flush", ClearFaults},
 	{ "none", ClearErrors},
 	{ "default", ClearErrors},
-	{ NULL, 0}
+	{ NULL, UnSet }
 };
 
 mapping_t consistency_policies[] = {
@@ -137,7 +137,7 @@ mapping_t consistency_policies[] = {
 	{ "bitmap", CONSISTENCY_POLICY_BITMAP},
 	{ "journal", CONSISTENCY_POLICY_JOURNAL},
 	{ "ppl", CONSISTENCY_POLICY_PPL},
-	{ NULL, 0}
+	{ NULL, UnSet }
 };
 
 mapping_t sysfs_array_states[] = {
@@ -154,7 +154,7 @@ mapping_t sysfs_array_states[] = {
 	{ "read-auto", ARRAY_READ_AUTO },
 	{ "clean", ARRAY_CLEAN },
 	{ "write-pending", ARRAY_WRITE_PENDING },
-	{ NULL, 0 }
+	{ NULL, ARRAY_UNKNOWN_STATE }
 };
 
 char *map_num(mapping_t *map, int num)
@@ -174,5 +174,6 @@ int map_name(mapping_t *map, char *name)
 			return map->num;
 		map++;
 	}
-	return UnSet;
+
+	return map->num;
 }
diff --git a/sysfs.c b/sysfs.c
index c6df9b0..712f8b3 100644
--- a/sysfs.c
+++ b/sysfs.c
@@ -250,8 +250,6 @@ struct mdinfo *sysfs_read(int fd, char *devnm, unsigned long options)
 		if (load_sys(fname, buf, sizeof(buf)))
 			goto abort;
 		sra->array_state = map_name(sysfs_array_states, buf);
-		if (sra->array_state == UnSet)
-			sra->array_state = ARRAY_UNKNOWN_STATE;
 	}
 
 	if (options & GET_CONSISTENCY_POLICY) {
-- 
2.13.6
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