#include <getopt.h>
#include "ctree.h"
+#include "volumes.h"
#include "transaction.h"
#include "disk-io.h"
#include "commands.h"
#include "utils.h"
+#include "help.h"
static const char * const rescue_cmd_group_usage[] = {
"btrfs rescue <command> [options] <path>",
NULL
};
-static const char * const cmd_rescue_super_recover_usage[] = {
- "btrfs rescue super-recover [options] <device>",
- "Recover bad superblocks from good copies",
- "",
- "-y Assume an answer of `yes' to all questions",
- "-v Verbose mode",
- NULL
-};
-
-int cmd_rescue_chunk_recover(int argc, char *argv[])
+static int cmd_rescue_chunk_recover(int argc, char *argv[])
{
int ret = 0;
char *file;
}
}
- argc = argc - optind;
- if (check_argc_exact(argc, 1))
+ if (check_argc_exact(argc - optind, 1))
usage(cmd_rescue_chunk_recover_usage);
file = argv[optind];
ret = check_mounted(file);
if (ret < 0) {
- fprintf(stderr, "Could not check mount status: %s\n",
- strerror(-ret));
+ error("could not check mount status: %s", strerror(-ret));
return 1;
} else if (ret) {
- fprintf(stderr, "the device is busy\n");
+ error("the device is busy");
return 1;
}
ret = btrfs_recover_chunk_tree(file, verbose, yes);
if (!ret) {
- fprintf(stdout, "Recover the chunk tree successfully.\n");
+ fprintf(stdout, "Chunk tree recovered successfully\n");
} else if (ret > 0) {
ret = 0;
- fprintf(stdout, "Abort to rebuild the on-disk chunk tree.\n");
+ fprintf(stdout, "Chunk tree recovery aborted\n");
} else {
- fprintf(stdout, "Fail to recover the chunk tree.\n");
+ fprintf(stdout, "Chunk tree recovery failed\n");
}
return ret;
}
+static const char * const cmd_rescue_super_recover_usage[] = {
+ "btrfs rescue super-recover [options] <device>",
+ "Recover bad superblocks from good copies",
+ "",
+ "-y Assume an answer of `yes' to all questions",
+ "-v Verbose mode",
+ NULL
+};
+
/*
* return codes:
* 0 : All superblocks are valid, no need to recover
* 3 : Fail to Recover bad supeblocks
* 4 : Abort to recover bad superblocks
*/
-int cmd_rescue_super_recover(int argc, char **argv)
+static int cmd_rescue_super_recover(int argc, char **argv)
{
int ret;
int verbose = 0;
usage(cmd_rescue_super_recover_usage);
}
}
- argc = argc - optind;
- if (check_argc_exact(argc, 1))
+ if (check_argc_exact(argc - optind, 1))
usage(cmd_rescue_super_recover_usage);
dname = argv[optind];
ret = check_mounted(dname);
if (ret < 0) {
- fprintf(stderr, "Could not check mount status: %s\n",
- strerror(-ret));
+ error("could not check mount status: %s", strerror(-ret));
return 1;
} else if (ret) {
- fprintf(stderr, "the device is busy\n");
+ error("the device is busy");
return 1;
}
ret = btrfs_recover_superblocks(dname, verbose, yes);
NULL
};
-int cmd_rescue_zero_log(int argc, char **argv)
+static int cmd_rescue_zero_log(int argc, char **argv)
{
struct btrfs_root *root;
struct btrfs_trans_handle *trans;
char *devname;
int ret;
+ clean_args_no_options(argc, argv, cmd_rescue_zero_log_usage);
+
if (check_argc_exact(argc, 2))
usage(cmd_rescue_zero_log_usage);
devname = argv[optind];
ret = check_mounted(devname);
if (ret < 0) {
- fprintf(stderr, "Could not check mount status: %s\n", strerror(-ret));
+ error("could not check mount status: %s", strerror(-ret));
goto out;
} else if (ret) {
- fprintf(stderr, "%s is currently mounted. Aborting.\n", devname);
+ error("%s is currently mounted", devname);
ret = -EBUSY;
+ goto out;
}
root = open_ctree(devname, 0, OPEN_CTREE_WRITES | OPEN_CTREE_PARTIAL);
if (!root) {
- fprintf(stderr, "Could not open ctree\n");
+ error("could not open ctree");
return 1;
}
(unsigned long long)btrfs_super_log_root(sb),
(unsigned)btrfs_super_log_root_level(sb));
trans = btrfs_start_transaction(root, 1);
+ BUG_ON(IS_ERR(trans));
btrfs_set_super_log_root(sb, 0);
btrfs_set_super_log_root_level(sb, 0);
btrfs_commit_transaction(trans, root);
return !!ret;
}
+static const char * const cmd_rescue_fix_device_size_usage[] = {
+ "btrfs rescue fix-device-size <device>",
+ "Re-align device and super block sizes. Usable if newer kernel refuse to mount it due to mismatch super size",
+ "",
+ NULL
+};
+
+static int cmd_rescue_fix_device_size(int argc, char **argv)
+{
+ struct btrfs_fs_info *fs_info;
+ char *devname;
+ int ret;
+
+ clean_args_no_options(argc, argv, cmd_rescue_fix_device_size_usage);
+
+ if (check_argc_exact(argc, 2))
+ usage(cmd_rescue_fix_device_size_usage);
+
+ devname = argv[optind];
+ ret = check_mounted(devname);
+ if (ret < 0) {
+ error("could not check mount status: %s", strerror(-ret));
+ goto out;
+ } else if (ret) {
+ error("%s is currently mounted", devname);
+ ret = -EBUSY;
+ goto out;
+ }
+
+ fs_info = open_ctree_fs_info(devname, 0, 0, 0, OPEN_CTREE_WRITES |
+ OPEN_CTREE_PARTIAL);
+ if (!fs_info) {
+ error("could not open btrfs");
+ ret = -EIO;
+ goto out;
+ }
+
+ ret = btrfs_fix_device_and_super_size(fs_info);
+ if (ret > 0)
+ ret = 0;
+ close_ctree(fs_info->tree_root);
+out:
+ return !!ret;
+}
+
static const char rescue_cmd_group_info[] =
"toolbox for specific rescue operations";
{ "super-recover", cmd_rescue_super_recover,
cmd_rescue_super_recover_usage, NULL, 0},
{ "zero-log", cmd_rescue_zero_log, cmd_rescue_zero_log_usage, NULL, 0},
+ { "fix-device-size", cmd_rescue_fix_device_size,
+ cmd_rescue_fix_device_size_usage, NULL, 0},
NULL_CMD_STRUCT
}
};
projects / platform / upstream / btrfs-progs.git / blobdiff