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btrfs-progs: add the error message when open fails

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When open in btrfs_open_devices failed, only the following message is
displayed. Therefore the user doesn't understand the reason why open
failed.

  # btrfs check /dev/sdb8
  Couldn't open file system

This patch adds the error message when open fails.

Signed-off-by: Tsutomu Itoh <t-itoh@jp.fujitsu.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Tsutomu Itoh 2016-06-09 10:23:15 +09:00 committed by David Sterba
parent e67219255c
commit dabd283583
1 changed files with 2 additions and 0 deletions
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2
volumes.c
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@ -227,6 +227,8 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices, int flags)
fd = open(device->name, flags); fd = open(device->name, flags);
if (fd < 0) { if (fd < 0) {
ret = -errno; ret = -errno;
error("cannot open device '%s': %s", device->name,
strerror(errno));
goto fail; goto fail;
} }