From: Karel Zak <kzak@redhat.com>
Date: Mon, 15 Aug 2016 09:02:18 +0000 (+0200)
Subject: lsns: missing ns/<name> is not error
X-Git-Tag: v2.28.2~17
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=3cd98e951ad1c469c8a0c973c0afa1f892cb9491;p=thirdparty%2Futil-linux.git

lsns: missing ns/<name> is not error

For example user namespace is optional it does not make sense to
ignore process completely if the ns/user file is missing.

Reported-by: Michał Bartoszkiewicz <mbartoszkiewicz@gmail.com>
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/sys-utils/lsns.c b/sys-utils/lsns.c
index 9621425271..443efde507 100644
--- a/sys-utils/lsns.c
+++ b/sys-utils/lsns.c
@@ -202,7 +202,7 @@ static inline const struct colinfo *get_column_info(unsigned num)
 	return &infos[ get_column_id(num) ];
 }
 
-static ino_t get_ns_ino(int dir, const char *nsname, ino_t *ino)
+static int get_ns_ino(int dir, const char *nsname, ino_t *ino)
 {
 	struct stat st;
 	char path[16];
@@ -267,7 +267,7 @@ static int read_process(struct lsns *ls, pid_t pid)
 			continue;
 
 		rc = get_ns_ino(dirfd(dir), ns_names[i], &p->ns_ids[i]);
-		if (rc && rc != -EACCES)
+		if (rc && rc != -EACCES && rc != -ENOENT)
 			goto done;
 		rc = 0;
 	}