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Btrfs-progs: Use /proc/mounts instead of /etc/mtab

Message ID 1364221302-7906-1-git-send-email-sbehrens@giantdisaster.de (mailing list archive)
State Superseded, archived
Headers show

Commit Message

Stefan Behrens March 25, 2013, 2:21 p.m. UTC 
/etc/mtab is not working correctly in situations where multiple
mount namespaces are used. Use /proc/mounts instead like the
rest of the code is doing it.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
---
 cmds-send.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/cmds-send.c b/cmds-send.c
index b2a340e..5a7183d 100644
--- a/cmds-send.c
+++ b/cmds-send.c
@@ -70,7 +70,7 @@  int find_mount_root(const char *path, char **mount_root)
 		return -errno;
 	close(fd);
 
-	mnttab = fopen("/etc/mtab", "r");
+	mnttab = fopen("/proc/mounts", "r");
 	while ((ent = getmntent(mnttab))) {
 		len = strlen(ent->mnt_dir);
 		if (strncmp(ent->mnt_dir, path, len) == 0) {