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From 24cd2c1c2893cf456bd93ed3091fca878bfc014f Mon Sep 17 00:00:00 2001
From: Eddie James <eajames@us.ibm.com>
Date: Thu, 5 Jul 2018 08:46:18 -0500
Subject: [PATCH] umount: ignore -c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
systemd uses -c.
-c, --no-canonicalize
Do not canonicalize paths. The paths canonicalization is based
on stat(2) and readlink(2) system calls. These system calls may
hang in some cases (for example on NFS if server is not avail‐
able). The option has to be used with canonical path to the
mount point.
For more details about this option see the mount(8) man page.
Note that umount does not pass this option to the
/sbin/umount.type helpers.
As busybox doesn't canonicalize paths in the first place it is safe to
ignore this option.
See https://github.com/systemd/systemd/issues/7786
Signed-off-by: Shawn Landden <slandden at gmail.com>
Signed-off-by: Eddie James <eajames@us.ibm.com>
---
util-linux/umount.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/util-linux/umount.c b/util-linux/umount.c
index 0c50dc9..0425c5b 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -68,8 +68,8 @@ static struct mntent *getmntent_r(FILE* stream, struct mntent* result,
}
#endif
-/* ignored: -v -t -i */
-#define OPTION_STRING "fldnra" "vt:i"
+/* ignored: -c -v -t -i */
+#define OPTION_STRING "fldnra" "cvt:i"
#define OPT_FORCE (1 << 0) // Same as MNT_FORCE
#define OPT_LAZY (1 << 1) // Same as MNT_DETACH
#define OPT_FREELOOP (1 << 2)
--
1.8.3.1
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