btrfs-progs: cmd subvolume: switch to common error message wrapper

Message texts were adjusted.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/cmds-subvolume.c b/cmds-subvolume.c
index be1a54a..ae3fb7c 100644 (file)
--- a/cmds-subvolume.c
+++ b/cmds-subvolume.c
@@ -77,9 +77,9 @@ static int wait_for_subvolume_cleaning(int fd, int count, u64 *ids,
                                continue;
                        ret = is_subvolume_cleaned(fd, ids[i]);
                        if (ret < 0) {
-                               fprintf(stderr,
-                                       "ERROR: can't perform the search - %s\n",
-                                       strerror(-ret));
+                               error(
+                           "cannot read status of dead subvolume %llu: %s",
+                                       (unsigned long long)ids[i], strerror(-ret));
                                return ret;
                        }
                        if (ret) {
@@ -159,7 +159,7 @@ static int cmd_subvol_create(int argc, char **argv)
        retval = 1;     /* failure */
        res = test_isdir(dst);
        if (res >= 0) {
-               fprintf(stderr, "ERROR: '%s' exists\n", dst);
+               error("target path already exists: %s", dst);
                goto out;
        }
 
@@ -169,15 +169,13 @@ static int cmd_subvol_create(int argc, char **argv)
        dstdir = dirname(dupdir);
 
        if (!test_issubvolname(newname)) {
-               fprintf(stderr, "ERROR: incorrect subvolume name '%s'\n",
-                       newname);
+               error("invalid subvolume name: %s", newname);
                goto out;
        }
 
        len = strlen(newname);
        if (len == 0 || len >= BTRFS_VOL_NAME_MAX) {
-               fprintf(stderr, "ERROR: subvolume name too long '%s'\n",
-                       newname);
+               error("subvolume name too long: %s", newname);
                goto out;
        }
 
@@ -206,8 +204,7 @@ static int cmd_subvol_create(int argc, char **argv)
        }
 
        if (res < 0) {
-               fprintf(stderr, "ERROR: cannot create subvolume - %s\n",
-                       strerror(errno));
+               error("cannot create subvolume: %s", strerror(errno));
                goto out;
        }
 
@@ -323,12 +320,12 @@ again:
 
        res = test_issubvolume(path);
        if (res < 0) {
-               fprintf(stderr, "ERROR: error accessing '%s'\n", path);
+               error("cannot access subvolume %s", path);
                ret = 1;
                goto out;
        }
        if (!res) {
-               fprintf(stderr, "ERROR: '%s' is not a subvolume\n", path);
+               error("not a subvolume: %s", path);
                ret = 1;
                goto out;
        }
@@ -336,7 +333,7 @@ again:
        cpath = realpath(path, NULL);
        if (!cpath) {
                ret = errno;
-               fprintf(stderr, "ERROR: finding real path for '%s': %s\n",
+               error("cannot find real path for '%s': %s",
                        path, strerror(errno));
                goto out;
        }
@@ -361,8 +358,7 @@ again:
        e = errno;
 
        if(res < 0 ){
-               fprintf( stderr, "ERROR: cannot delete '%s/%s' - %s\n",
-                       dname, vname, strerror(e));
+               error("cannot delete '%s/%s': %s", dname, vname, strerror(e));
                ret = 1;
                goto out;
        }
@@ -370,8 +366,7 @@ again:
        if (commit_mode == 1) {
                res = wait_for_commit(fd);
                if (res < 0) {
-                       fprintf(stderr,
-                               "ERROR: unable to wait for commit after '%s': %s\n",
+                       error("unable to wait for commit after '%s': %s",
                                path, strerror(errno));
                        ret = 1;
                }
@@ -394,8 +389,7 @@ out:
        if (commit_mode == 2 && fd != -1) {
                res = wait_for_commit(fd);
                if (res < 0) {
-                       fprintf(stderr,
-                               "ERROR: unable to do final sync: %s\n",
+                       error("unable to do final sync after deletion: %s",
                                strerror(errno));
                        ret = 1;
                }
@@ -564,13 +558,13 @@ static int cmd_subvol_list(int argc, char **argv)
        fd = btrfs_open_dir(subvol, &dirstream, 1);
        if (fd < 0) {
                ret = -1;
-               fprintf(stderr, "ERROR: can't access '%s'\n", subvol);
+               error("can't access '%s'", subvol);
                goto out;
        }
 
        ret = btrfs_list_get_path_rootid(fd, &top_id);
        if (ret) {
-               fprintf(stderr, "ERROR: can't get rootid for '%s'\n", subvol);
+               error("can't get rootid for '%s'", subvol);
                goto out;
        }
 
@@ -682,17 +676,17 @@ static int cmd_subvol_snapshot(int argc, char **argv)
        retval = 1;     /* failure */
        res = test_issubvolume(subvol);
        if (res < 0) {
-               fprintf(stderr, "ERROR: error accessing '%s'\n", subvol);
+               error("cannot access subvolume %s", subvol);
                goto out;
        }
        if (!res) {
-               fprintf(stderr, "ERROR: '%s' is not a subvolume\n", subvol);
+               error("not a subvolume: %s", subvol);
                goto out;
        }
 
        res = test_isdir(dst);
        if (res == 0) {
-               fprintf(stderr, "ERROR: '%s' exists and it is not a directory\n", dst);
+               error("'%s' exists and it is not a directory", dst);
                goto out;
        }
 
@@ -708,15 +702,13 @@ static int cmd_subvol_snapshot(int argc, char **argv)
        }
 
        if (!test_issubvolname(newname)) {
-               fprintf(stderr, "ERROR: incorrect snapshot name '%s'\n",
-                       newname);
+               error("invalid snapshot name '%s'", newname);
                goto out;
        }
 
        len = strlen(newname);
        if (len == 0 || len >= BTRFS_VOL_NAME_MAX) {
-               fprintf(stderr, "ERROR: snapshot name too long '%s'\n",
-                       newname);
+               error("snapshot name too long '%s'", newname);
                goto out;
        }
 
@@ -748,8 +740,7 @@ static int cmd_subvol_snapshot(int argc, char **argv)
        res = ioctl(fddst, BTRFS_IOC_SNAP_CREATE_V2, &args);
 
        if (res < 0) {
-               fprintf( stderr, "ERROR: cannot snapshot '%s' - %s\n",
-                       subvol, strerror(errno));
+               error("cannot snapshot '%s': %s", subvol, strerror(errno));
                goto out;
        }
 
@@ -790,14 +781,14 @@ static int cmd_subvol_get_default(int argc, char **argv)
 
        ret = btrfs_list_get_default_subvolume(fd, &default_id);
        if (ret) {
-               fprintf(stderr, "ERROR: can't perform the search - %s\n",
+               error("failed to look up default subvolume: %s",
                        strerror(errno));
                goto out;
        }
 
        ret = 1;
        if (default_id == 0) {
-               fprintf(stderr, "ERROR: 'default' dir item not found\n");
+               error("'default' dir item not found");
                goto out;
        }
 
@@ -858,7 +849,7 @@ static int cmd_subvol_set_default(int argc, char **argv)
        e = errno;
        close_file_or_dir(fd, dirstream);
        if (ret < 0) {
-               fprintf(stderr, "ERROR: unable to set a new default subvolume - %s\n",
+               error("unable to set a new default subvolume: %s",
                        strerror(e));
                return 1;
        }
@@ -887,11 +878,11 @@ static int cmd_subvol_find_new(int argc, char **argv)
 
        ret = test_issubvolume(subvol);
        if (ret < 0) {
-               fprintf(stderr, "ERROR: error accessing '%s'\n", subvol);
+               error("cannot access subvolume %s", subvol);
                return 1;
        }
        if (!ret) {
-               fprintf(stderr, "ERROR: '%s' is not a subvolume\n", subvol);
+               error("not a subvolume: %s", subvol);
                return 1;
        }
 
@@ -901,7 +892,7 @@ static int cmd_subvol_find_new(int argc, char **argv)
 
        ret = ioctl(fd, BTRFS_IOC_SYNC);
        if (ret < 0) {
-               fprintf(stderr, "ERROR: unable to fs-syncing '%s' - %s\n",
+               error("sync ioctl failed on '%s': %s",
                        subvol, strerror(errno));
                close_file_or_dir(fd, dirstream);
                return 1;
@@ -936,32 +927,30 @@ static int cmd_subvol_show(int argc, char **argv)
 
        fullpath = realpath(argv[1], NULL);
        if (!fullpath) {
-               fprintf(stderr, "ERROR: finding real path for '%s', %s\n",
+               error("cannot find real path for '%s': %s",
                        argv[1], strerror(errno));
                goto out;
        }
 
        ret = test_issubvolume(fullpath);
        if (ret < 0) {
-               fprintf(stderr, "ERROR: error accessing '%s'\n", fullpath);
+               error("cannot access subvolume %s", fullpath);
                goto out;
        }
        if (!ret) {
-               fprintf(stderr, "ERROR: '%s' is not a subvolume\n", fullpath);
+               error("not a subvolume: %s", fullpath);
                ret = 1;
                goto out;
        }
 
        ret = find_mount_root(fullpath, &mnt);
        if (ret < 0) {
-               fprintf(stderr, "ERROR: find_mount_root failed on '%s': "
-                               "%s\n", fullpath, strerror(-ret));
+               error("find_mount_root failed on '%s': %s",
+                       fullpath, strerror(-ret));
                goto out;
        }
        if (ret > 0) {
-               fprintf(stderr,
-                       "ERROR: %s doesn't belong to btrfs mount point\n",
-                       fullpath);
+               error("%s doesn't belong to btrfs mount point", fullpath);
                goto out;
        }
        ret = 1;
@@ -973,8 +962,7 @@ static int cmd_subvol_show(int argc, char **argv)
 
        ret = btrfs_list_get_path_rootid(fd, &sv_id);
        if (ret) {
-               fprintf(stderr, "ERROR: can't get rootid for '%s'\n",
-                       fullpath);
+               error("can't get rootid for '%s'", fullpath);
                goto out;
        }
 
@@ -983,7 +971,7 @@ static int cmd_subvol_show(int argc, char **argv)
                goto out;
 
        if (sv_id == BTRFS_FS_TREE_OBJECTID) {
-               printf("%s is btrfs root\n", fullpath);
+               printf("%s is toplevel subvolume\n", fullpath);
                goto out;
        }
 
@@ -992,8 +980,7 @@ static int cmd_subvol_show(int argc, char **argv)
 
        ret = btrfs_get_subvol(mntfd, &get_ri);
        if (ret) {
-               fprintf(stderr, "ERROR: can't find '%s'\n",
-                       svpath);
+               error("can't find '%s'", svpath);
                goto out;
        }
 
@@ -1239,8 +1226,7 @@ static int cmd_subvol_sync(int argc, char **argv)
                case 's':
                        sleep_interval = atoi(argv[optind]);
                        if (sleep_interval < 1) {
-                               fprintf(stderr,
-                                       "ERROR: invalid sleep interval %s\n",
+                               error("invalid sleep interval %s",
                                        argv[optind]);
                                ret = 1;
                                goto out;
@@ -1265,7 +1251,7 @@ static int cmd_subvol_sync(int argc, char **argv)
        if (!id_count) {
                id_count = enumerate_dead_subvols(fd, &ids);
                if (id_count < 0) {
-                       fprintf(stderr, "ERROR: can't enumerate dead subvolumes: %s\n",
+                       error("can't enumerate dead subvolumes: %s",
                                        strerror(-id_count));
                        ret = 1;
                        goto out;
@@ -1277,7 +1263,7 @@ static int cmd_subvol_sync(int argc, char **argv)
        } else {
                ids = (u64*)malloc(id_count * sizeof(u64));
                if (!ids) {
-                       fprintf(stderr, "ERROR: not enough memory\n");
+                       error("not enough memory");
                        ret = 1;
                        goto out;
                }
@@ -1290,17 +1276,13 @@ static int cmd_subvol_sync(int argc, char **argv)
                        errno = 0;
                        id = strtoull(arg, NULL, 10);
                        if (errno < 0) {
-                               fprintf(stderr,
-                                       "ERROR: unrecognized subvolume id %s\n",
-                                       arg);
+                               error("unrecognized subvolume id %s", arg);
                                ret = 1;
                                goto out;
                        }
                        if (id < BTRFS_FIRST_FREE_OBJECTID
                                        || id > BTRFS_LAST_FREE_OBJECTID) {
-                               fprintf(stderr,
-                                       "ERROR: subvolume id %s out of range\n",
-                                       arg);
+                               error("subvolume id %s out of range\n", arg);
                                ret = 1;
                                goto out;
                        }