From 44a33d0d14856a6c8c309c98e3223adaca452a30 Mon Sep 17 00:00:00 2001 From: Anand Jain Date: Thu, 14 Mar 2013 11:17:19 +0800 Subject: btrfs-progs: print errno string when /dev/btrfs-control open fails Of recently and intermittently I am seeing open fail for /dev/btrfs-control (btrfs is loaded), and there are no dmesg errors, this may not be a complete help in digging this issue but something which is necessary. Thanks Signed-off-by: Anand Jain Signed-off-by: David Sterba --- utils.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/utils.c b/utils.c index cfb6116d..7b028a79 100644 --- a/utils.c +++ b/utils.c @@ -1024,7 +1024,8 @@ void btrfs_register_one_device(char *fname) fd = open("/dev/btrfs-control", O_RDONLY); if (fd < 0) { fprintf(stderr, "failed to open /dev/btrfs-control " - "skipping device registration\n"); + "skipping device registration: %s\n", + strerror(errno)); return; } strncpy(args.name, fname, BTRFS_PATH_NAME_MAX); -- cgit v1.2.3