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From 294a277fceb5cd6640a9b7a6e8af7b2567150f34 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Mon, 20 Mar 2017 12:03:40 +0100
Subject: [PATCH 104/116] swapon: fix discard option parsing
Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1378100
Upstream: https://github.com/karelzak/util-linux/commit/07332bfa1ec122a251194a62f91319841121d5aa
Signed-off-by: Karel Zak <kzak@redhat.com>
---
sys-utils/swapon.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/sys-utils/swapon.c b/sys-utils/swapon.c
index d85b910..d4f2c08 100644
--- a/sys-utils/swapon.c
+++ b/sys-utils/swapon.c
@@ -632,20 +632,21 @@ static int swapon_all(void)
while (mnt_table_find_next_fs(tb, itr, match_swap, NULL, &fs) == 0) {
/* defaults */
+ size_t argsz = 0;
int pri = priority, dsc = discard, nofail = ifexists;
char *p, *src, *dscarg;
if (mnt_fs_get_option(fs, "noauto", NULL, NULL) == 0)
continue;
- if (mnt_fs_get_option(fs, "discard", &dscarg, NULL) == 0) {
+ if (mnt_fs_get_option(fs, "discard", &dscarg, &argsz) == 0) {
dsc |= SWAP_FLAG_DISCARD;
if (dscarg) {
/* only single-time discards are wanted */
- if (strcmp(dscarg, "once") == 0)
+ if (strncmp(dscarg, "once", argsz) == 0)
dsc |= SWAP_FLAG_DISCARD_ONCE;
/* do discard for every released swap page */
- if (strcmp(dscarg, "pages") == 0)
+ if (strncmp(dscarg, "pages", argsz) == 0)
dsc |= SWAP_FLAG_DISCARD_PAGES;
}
}
--
2.9.3