From: Dave Chinner Date: Tue, 10 Feb 2015 22:10:01 +0000 (+1100) Subject: xfsprogs: Space management tool X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0a5aba4afea2c73af72ebf9aa1be85fae6fa472;p=thirdparty%2Fxfsprogs-dev.git xfsprogs: Space management tool xfs_spaceman is intended as a diagnostic and control tool for space management operations within XFS. Operations like examining free space, managing allocation policies, issuing block discards on free space, etc. The tool is modelled on the xfs_io interface, allowing both interactive and command line control of the tool, enabling it to be used in scripts and automated management tools. Signed-off-by: Dave Chinner --- diff --git a/Makefile b/Makefile index f56aebd9c..5846a8ae7 100644 --- a/Makefile +++ b/Makefile @@ -42,7 +42,7 @@ endif LIB_SUBDIRS = libxfs libxlog libxcmd libhandle libdisk TOOL_SUBDIRS = copy db estimate fsck fsr growfs io logprint mkfs quota \ - mdrestore repair rtcp m4 man doc po debian + mdrestore repair rtcp m4 man doc po debian spaceman SUBDIRS = include $(LIB_SUBDIRS) $(TOOL_SUBDIRS) @@ -63,6 +63,7 @@ io: libxcmd libhandle mkfs: libxfs quota: libxcmd repair: libxfs libxlog +spaceman: libxcmd ifneq ($(ENABLE_BLKID), yes) mkfs: libdisk diff --git a/spaceman/Makefile b/spaceman/Makefile new file mode 100644 index 000000000..ff8d23ef2 --- /dev/null +++ b/spaceman/Makefile @@ -0,0 +1,34 @@ +# +# Copyright (c) 2012 Red Hat, Inc. All Rights Reserved. +# + +TOPDIR = .. +include $(TOPDIR)/include/builddefs + +LTCOMMAND = xfs_spaceman +HFILES = init.h space.h +CFILES = init.c \ + file.c + +LLDLIBS = $(LIBXCMD) +LTDEPENDENCIES = $(LIBXCMD) +LLDFLAGS = -static + +ifeq ($(ENABLE_READLINE),yes) +LLDLIBS += $(LIBREADLINE) $(LIBTERMCAP) +endif + +ifeq ($(ENABLE_EDITLINE),yes) +LLDLIBS += $(LIBEDITLINE) $(LIBTERMCAP) +endif + +default: depend $(LTCOMMAND) + +include $(BUILDRULES) + +install: default + $(INSTALL) -m 755 -d $(PKG_SBIN_DIR) + $(LTINSTALL) -m 755 $(LTCOMMAND) $(PKG_SBIN_DIR) +install-dev: + +-include .dep diff --git a/spaceman/file.c b/spaceman/file.c new file mode 100644 index 000000000..ea4ab0ca8 --- /dev/null +++ b/spaceman/file.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2004-2005 Silicon Graphics, Inc. + * Copyright (c) 2012 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include "init.h" +#include "space.h" + +static cmdinfo_t print_cmd; + +fileio_t *filetable; +int filecount; +fileio_t *file; + +static void +print_fileio( + fileio_t *file, + int index, + int braces) +{ + printf(_("%c%03d%c %-14s (%s,%s,%s%s%s)\n"), + braces? '[' : ' ', index, braces? ']' : ' ', file->name, + file->flags & O_SYNC ? _("sync") : _("non-sync"), + file->flags & O_DIRECT ? _("direct") : _("non-direct"), + file->flags & O_RDONLY ? _("read-only") : _("read-write"), + file->flags & O_APPEND ? _(",append-only") : "", + file->flags & O_NONBLOCK ? _(",non-block") : ""); +} + +int +filelist_f(void) +{ + int i; + + for (i = 0; i < filecount; i++) + print_fileio(&filetable[i], i, &filetable[i] == file); + return 0; +} + +static int +print_f( + int argc, + char **argv) +{ + filelist_f(); + return 0; +} + +int +openfile( + char *path, + xfs_fsop_geom_t *geom, + int flags, + mode_t mode) +{ + int fd; + + fd = open(path, flags, mode); + if (fd < 0) { + if ((errno == EISDIR) && (flags & O_RDWR)) { + /* make it as if we asked for O_RDONLY & try again */ + flags &= ~O_RDWR; + flags |= O_RDONLY; + fd = open(path, flags, mode); + if (fd < 0) { + perror(path); + return -1; + } + } else { + perror(path); + return -1; + } + } + + if (xfsctl(path, fd, XFS_IOC_FSGEOMETRY, geom) < 0) { + perror("XFS_IOC_FSGEOMETRY"); + close(fd); + return -1; + } + return fd; +} + +int +addfile( + char *name, + int fd, + xfs_fsop_geom_t *geometry, + int flags) +{ + char *filename; + + filename = strdup(name); + if (!filename) { + perror("strdup"); + close(fd); + return -1; + } + + /* Extend the table of currently open files */ + filetable = (fileio_t *)realloc(filetable, /* growing */ + ++filecount * sizeof(fileio_t)); + if (!filetable) { + perror("realloc"); + filecount = 0; + free(filename); + close(fd); + return -1; + } + + /* Finally, make this the new active open file */ + file = &filetable[filecount - 1]; + file->fd = fd; + file->flags = flags; + file->name = filename; + file->geom = *geometry; + return 0; +} + +void +file_init(void) +{ + print_cmd.name = "print"; + print_cmd.altname = "p"; + print_cmd.cfunc = print_f; + print_cmd.argmin = 0; + print_cmd.argmax = 0; + print_cmd.flags = CMD_FLAG_GLOBAL; + print_cmd.oneline = _("list current open files"); + + add_command(&print_cmd); +} diff --git a/spaceman/init.c b/spaceman/init.c new file mode 100644 index 000000000..98c79e548 --- /dev/null +++ b/spaceman/init.c @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2012 Red Hat, Inc + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include "init.h" +#include "space.h" + +char *progname; +int exitcode; + +void +usage(void) +{ + fprintf(stderr, + _("Usage: %s [-c cmd] file\n"), + progname); + exit(1); +} + +static void +init_commands(void) +{ + file_init(); + help_init(); + quit_init(); +} + +static int +init_args_command( + int index) +{ + if (index >= filecount) + return 0; + file = &filetable[index++]; + return index; +} + +static int +init_check_command( + const cmdinfo_t *ct) +{ + if (!(ct->flags & CMD_FLAG_GLOBAL)) + return 0; + return 1; +} + +void +init( + int argc, + char **argv) +{ + int c, flags = 0; + mode_t mode = 0600; + xfs_fsop_geom_t geometry = { 0 }; + + progname = basename(argv[0]); + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); + + while ((c = getopt(argc, argv, "c:V")) != EOF) { + switch (c) { + case 'c': + add_user_command(optarg); + break; + case 'V': + printf(_("%s version %s\n"), progname, VERSION); + exit(0); + default: + usage(); + } + } + + if (optind == argc) + usage(); + + while (optind < argc) { + if ((c = openfile(argv[optind], &geometry, flags, mode)) < 0) + exit(1); + if (!platform_test_xfs_fd(c)) { + printf(_("Not an XFS filesystem!\n")); + exit(1); + } + if (addfile(argv[optind], c, &geometry, flags) < 0) + exit(1); + optind++; + } + + init_commands(); + add_args_command(init_args_command); + add_check_command(init_check_command); +} + +int +main( + int argc, + char **argv) +{ + init(argc, argv); + command_loop(); + return exitcode; +} diff --git a/spaceman/init.h b/spaceman/init.h new file mode 100644 index 000000000..ecd0b5dd2 --- /dev/null +++ b/spaceman/init.h @@ -0,0 +1,24 @@ +/* + * Copyright (c) 2012 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +extern char *progname; +extern int exitcode; + +#define min(a,b) (((a)<(b))?(a):(b)) +#define max(a,b) (((a)>(b))?(a):(b)) + diff --git a/spaceman/space.h b/spaceman/space.h new file mode 100644 index 000000000..6e1bc5205 --- /dev/null +++ b/spaceman/space.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2012 Red Hat, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +typedef struct fileio { + int fd; /* open file descriptor */ + int flags; /* flags describing file state */ + char *name; /* file name at time of open */ + xfs_fsop_geom_t geom; /* XFS filesystem geometry */ +} fileio_t; + +extern fileio_t *filetable; /* open file table */ +extern int filecount; /* number of open files */ +extern fileio_t *file; /* active file in file table */ +extern int filelist_f(void); + +extern int openfile(char *, xfs_fsop_geom_t *, int, mode_t); +extern int addfile(char *, int , xfs_fsop_geom_t *, int); + +extern void file_init(void); +extern void help_init(void); +extern void quit_init(void);