gfs2-utils: master - gfs_controld: fix ignore_nolock for mounted nolock fs

David Teigland teigland at fedoraproject.org
Thu Aug 30 16:54:37 UTC 2012


Gitweb:        http://git.fedorahosted.org/git/?p=gfs2-utils.git;a=commitdiff;h=e04ac4bed3cf5b2b3376fdcbf4485bc4fa2f2b36
Commit:        e04ac4bed3cf5b2b3376fdcbf4485bc4fa2f2b36
Parent:        0d6743bc762d01ca66867e9cf58692d57fce0317
Author:        Bob Peterson <rpeterso at redhat.com>
AuthorDate:    Thu Aug 30 11:36:43 2012 -0500
Committer:     David Teigland <teigland at redhat.com>
CommitterDate: Thu Aug 30 11:54:13 2012 -0500

gfs_controld: fix ignore_nolock for mounted nolock fs

kernel now shows lock_module/proto_name for
lock_nolock, so fix the check.

bz 853180

Signed-off-by: Bob Peterson <rpeterso at redhat.com>
Signed-off-by: David Teigland <teigland at redhat.com>
---
 group/gfs_controld/util.c |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)

diff --git a/group/gfs_controld/util.c b/group/gfs_controld/util.c
index 440f974..f77f85b 100644
--- a/group/gfs_controld/util.c
+++ b/group/gfs_controld/util.c
@@ -184,7 +184,8 @@ void update_dmsetup_wait(void)
 static int ignore_nolock(const char *sysfs_dir, char *table)
 {
 	char path[PATH_MAX];
-	int fd;
+	char buf[32];
+	int fd, rv;
 
 	memset(path, 0, PATH_MAX);
 
@@ -198,7 +199,16 @@ static int ignore_nolock(const char *sysfs_dir, char *table)
 	if (fd < 0)
 		return 1;
 
+	memset(buf, 0, sizeof(buf));
+
+	rv = read(fd, buf, sizeof(buf));
 	close(fd);
+	if (rv < 0)
+		return 1;
+
+	if (!strncmp(buf, "lock_nolock", 11))
+		return 1;
+
 	return 0;
 }
 


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