diff options
| -rw-r--r-- | cmds-inspect.c | 23 | ||||
| -rw-r--r-- | man/btrfs.8.in | 7 |
2 files changed, 22 insertions, 8 deletions
diff --git a/cmds-inspect.c b/cmds-inspect.c index 376fab28..4e072b0a 100644 --- a/cmds-inspect.c +++ b/cmds-inspect.c @@ -113,8 +113,13 @@ static int cmd_inode_resolve(int argc, char **argv) } static const char * const cmd_logical_resolve_usage[] = { - "btrfs inspect-internal logical-resolve [-Pv] <logical> <path>", + "btrfs inspect-internal logical-resolve [-Pv] [-s bufsize] <logical> <path>", "Get file system paths for the given logical address", + "-P skip the path resolving and print the inodes instead", + "-v verbose mode", + "-s bufsize set inode container's size. This is used to increase inode", + " container's size in case it is not enough to read all the ", + " resolved results. The max value one can set is 64k", NULL }; @@ -128,12 +133,13 @@ static int cmd_logical_resolve(int argc, char **argv) int bytes_left; struct btrfs_ioctl_logical_ino_args loi; struct btrfs_data_container *inodes; + u64 size = 4096; char full_path[4096]; char *path_ptr; optind = 1; while (1) { - int c = getopt(argc, argv, "Pv"); + int c = getopt(argc, argv, "Pvs:"); if (c < 0) break; @@ -144,6 +150,9 @@ static int cmd_logical_resolve(int argc, char **argv) case 'v': verbose = 1; break; + case 's': + size = atoll(optarg); + break; default: usage(cmd_logical_resolve_usage); } @@ -152,12 +161,13 @@ static int cmd_logical_resolve(int argc, char **argv) if (check_argc_exact(argc - optind, 2)) usage(cmd_logical_resolve_usage); - inodes = malloc(4096); + size = min(size, 64 * 1024); + inodes = malloc(size); if (!inodes) return 1; loi.logical = atoll(argv[optind]); - loi.size = 4096; + loi.size = size; loi.inodes = (u64)inodes; fd = open_file_or_dir(argv[optind+1]); @@ -174,8 +184,9 @@ static int cmd_logical_resolve(int argc, char **argv) } if (verbose) - printf("ioctl ret=%d, bytes_left=%lu, bytes_missing=%lu, " - "cnt=%d, missed=%d\n", ret, + printf("ioctl ret=%d, total_size=%llu, bytes_left=%lu, " + "bytes_missing=%lu, cnt=%d, missed=%d\n", + ret, size, (unsigned long)inodes->bytes_left, (unsigned long)inodes->bytes_missing, inodes->elem_cnt, inodes->elem_missed); diff --git a/man/btrfs.8.in b/man/btrfs.8.in index a8b4e9dc..92225800 100644 --- a/man/btrfs.8.in +++ b/man/btrfs.8.in @@ -50,7 +50,7 @@ btrfs \- control a btrfs filesystem \fBbtrfs\fP \fBinspect-internal inode-resolve\fP [-v] \fI<inode>\fP \fI<path>\fP .PP \fBbtrfs\fP \fBinspect-internal logical-resolve\fP -[-Pv] \fI<logical>\fP \fI<path>\fP +[-Pv] [-s size] \fI<logical>\fP \fI<path>\fP .PP \fBbtrfs\fP \fBhelp|\-\-help|\-h \fP\fI\fP .PP @@ -335,7 +335,7 @@ verbose mode. print count of returned paths and ioctl() return value .RE .TP -\fBinspect-internal logical-resolve\fP [-Pv] \fI<logical>\fP \fI<path>\fP +\fBinspect-internal logical-resolve\fP [-Pv] [-s bufsize] \fI<logical>\fP \fI<path>\fP Resolves a <logical> address in the filesystem mounted at <path> to all inodes. By default, each inode is then resolved to a file system path (similar to the \fBinode-resolve\fP subcommand). @@ -346,6 +346,9 @@ By default, each inode is then resolved to a file system path (similar to the skip the path resolving and print the inodes instead .IP -v 5 verbose mode. print count of returned paths and all ioctl() return values +.IP -s bufsize 5 +set inode container's size. This is used to increase inode container's size in case it is +not enough to read all the resolved results. The max value one can set is 64k. .RE .SH EXIT STATUS |