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util: don't fail recursive bind mounting if we cannot read the mount flags from an obstructed mounted

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Lennart Poettering
2015-01-07 01:32:13 +01:00
parent 2339fc936a
commit a7e0720602
1 changed files with 9 additions and 6 deletions
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src/shared/util.c
+9 -6
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@@ -6980,10 +6980,10 @@ int bind_remount_recursive(const char *prefix, bool ro) {
if (mount(cleaned, cleaned, NULL, MS_BIND|MS_REC, NULL) < 0)
return -errno;
r = get_mount_flags(prefix, &orig_flags);
if (r < 0)
return r;
orig_flags = 0;
(void) get_mount_flags(cleaned, &orig_flags);
orig_flags &= ~MS_RDONLY;
if (mount(NULL, prefix, NULL, orig_flags|MS_BIND|MS_REMOUNT|(ro ? MS_RDONLY : 0), NULL) < 0)
return -errno;
@@ -7004,10 +7004,13 @@ int bind_remount_recursive(const char *prefix, bool ro) {
if (r < 0)
return r;
r = get_mount_flags(x, &orig_flags);
if (r < 0)
return r;
/* Try to reuse the original flag set, but
* don't care for errors, in case of
* obstructed mounts */
orig_flags = 0;
(void) get_mount_flags(x, &orig_flags);
orig_flags &= ~MS_RDONLY;
if (mount(NULL, x, NULL, orig_flags|MS_BIND|MS_REMOUNT|(ro ? MS_RDONLY : 0), NULL) < 0) {
/* Deal with mount points that are