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Btrfs-progs: bugfix for scrubbing single devices

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Scrub can be invoked to scrub only a single device of a (mounted) filesystem.
The code determines whether the given path is a mountpoint of a filesystem
by issueing a btrfs-specific ioctl to it. Only in case of EINVAL it assumed
it may be a device, all other errnos just caused it fail, but some devices
(correctly) return ENOTTY. This patch adds this to the error check.

Signed-off-by: Arne Jansen <sensille@gmx.net>
This commit is contained in:
Arne Jansen 2011-11-29 08:40:28 +01:00 committed by David Sterba
parent 681813b797
commit 133e4520ea
1 changed files with 1 additions and 1 deletions
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cmds-scrub.c
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@ -1002,7 +1002,7 @@ static int scrub_fs_info(char *path,
}
ret = ioctl(fd, BTRFS_IOC_FS_INFO, fi_args);
if (ret && errno == EINVAL) {
if (ret && (errno == EINVAL || errno == ENOTTY)) {
/* path is no mounted btrfs. try if it's a device */
ret = check_mounted_where(fd, path, mp, sizeof(mp),
&fs_devices_mnt);