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btrfs-progs: Add missing devices check for mounted btrfs.

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In btrfs/003 of xfstest, it will check whether btrfs fi show can find
missing devices.

But before the patch, btrfs-progs will not check whether device missing
if given a mounted btrfs mountpoint/block device.
This patch fixes the bug and will pass btrfs/003.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Cc: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Qu Wenruo 2014-02-07 15:07:19 +08:00 committed by Chris Mason
parent 1484081f61
commit 206efb60cb
1 changed files with 12 additions and 0 deletions
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12
cmds-filesystem.c
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@ -364,6 +364,8 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
char *label, char *path)
{
int i;
int fd;
int missing = 0;
char uuidbuf[BTRFS_UUID_UNPARSED_SIZE];
struct btrfs_ioctl_dev_info_args *tmp_dev_info;
int ret;
@ -386,6 +388,14 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
for (i = 0; i < fs_info->num_devices; i++) {
tmp_dev_info = (struct btrfs_ioctl_dev_info_args *)&dev_info[i];
/* Add check for missing devices even mounted */
fd = open((char *)tmp_dev_info->path, O_RDONLY);
if (fd < 0) {
missing = 1;
continue;
}
close(fd);
printf("\tdevid %4llu size %s used %s path %s\n",
tmp_dev_info->devid,
pretty_size(tmp_dev_info->total_bytes),
@ -393,6 +403,8 @@ static int print_one_fs(struct btrfs_ioctl_fs_info_args *fs_info,
tmp_dev_info->path);
}
if (missing)
printf("\t*** Some devices missing\n");
printf("\n");
return 0;
}