btrfs-progs: more scrub cancel error handling
If we request scrub cancel on an unmounted or non-btrfs device, we still get a "scrub canceled" success message: # btrfs scrub cancel /dev/loop1 scrub cancelled # blkid /dev/loop1 /dev/loop1: UUID="7f586941-1d5e-4ba7-9caa-b35934849957" TYPE="xfs" Fix this so that if check_mounted_where returns 0 we don't report success. While we're at it, use perror to report the reason for an open failure, if we get one. Signed-off-by: Eric Sandeen <sandeen@redhat.com>
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parent
5eaeb577b5
commit
d310e9cfff
15
cmds-scrub.c
15
cmds-scrub.c
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@ -1451,7 +1451,7 @@ static int cmd_scrub_cancel(int argc, char **argv)
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again:
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fdmnt = open_file_or_dir(path);
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if (fdmnt < 0) {
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fprintf(stderr, "ERROR: scrub cancel failed\n");
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perror("ERROR: scrub cancel failed:");
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return 1;
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}
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@ -1462,11 +1462,18 @@ again:
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/* path is not a btrfs mount point. See if it's a device. */
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ret = check_mounted_where(fdmnt, path, mp, sizeof(mp),
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&fs_devices_mnt);
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if (ret) {
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/* It is a device; try again with the mountpoint. */
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if (ret > 0) {
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/* It's a mounted btrfs device; retry w/ mountpoint. */
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close(fdmnt);
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path = mp;
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goto again;
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} else {
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/* It's not a mounted btrfs device either */
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fprintf(stderr,
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"ERROR: %s is not a mounted btrfs device\n",
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path);
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ret = 1;
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err = EINVAL;
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}
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}
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@ -1474,7 +1481,7 @@ again:
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if (ret) {
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fprintf(stderr, "ERROR: scrub cancel failed on %s: %s\n", path,
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err == ENOTCONN ? "not running" : strerror(errno));
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err == ENOTCONN ? "not running" : strerror(err));
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return 1;
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}
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