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Pino Toscano

2015-Jan-13 09:38 UTC

[Libguestfs] [PATCH] mkfs: add 'label' optional argument

Add the 'label' optional argument to the mkfs action, so it is possible
to set a filesystem label direct when creating it. There may be
filesystems not supporting changing the label of existing filesystems
but only setting it at creation time, so this new optarg will help.

Implement it for the most common filesystems (ext*, fat, ntfs, btrfs,
xfs), giving an error for all the others, just like set_label does.
---
 daemon/mkfs.c        | 45 +++++++++++++++++++++++++++++++++++++++++++--
 generator/actions.ml | 42 +++++++++++++++++++++++-------------------
 2 files changed, 66 insertions(+), 21 deletions(-)

diff --git a/daemon/mkfs.c b/daemon/mkfs.c
index 95ab874..2994307 100644
--- a/daemon/mkfs.c
+++ b/daemon/mkfs.c
@@ -36,7 +36,7 @@ GUESTFSD_EXT_CMD(str_mkfs, mkfs);
 /* Takes optional arguments, consult optargs_bitmask. */
 int
 do_mkfs (const char *fstype, const char *device, int blocksize,
-         const char *features, int inode, int sectorsize)
+         const char *features, int inode, int sectorsize, const char *label)
 {
   const char *argv[MAX_ARGS];
   size_t i = 0;
@@ -194,6 +194,47 @@ do_mkfs (const char *fstype, const char *device, int
blocksize,
     ADD_ARG (argv, i, sectorsize_str);
   }
 
+  if (optargs_bitmask & GUESTFS_MKFS_LABEL_BITMASK) {
+    if (extfs) {
+      if (strlen (label) > EXT2_LABEL_MAX) {
+        reply_with_error ("%s: ext2 labels are limited to %d bytes",
+                          label, EXT2_LABEL_MAX);
+        return -1;
+      }
+
+      ADD_ARG (argv, i, "-L");
+      ADD_ARG (argv, i, label);
+    }
+    else if (STREQ (fstype, "fat") || STREQ (fstype,
"vfat") ||
+             STREQ (fstype, "msdos")) {
+      ADD_ARG (argv, i, "-n");
+      ADD_ARG (argv, i, label);
+    }
+    else if (STREQ (fstype, "ntfs")) {
+      ADD_ARG (argv, i, "-L");
+      ADD_ARG (argv, i, label);
+    }
+    else if (STREQ (fstype, "xfs")) {
+      if (strlen (label) > XFS_LABEL_MAX) {
+        reply_with_error ("%s: xfs labels are limited to %d bytes",
+                          label, XFS_LABEL_MAX);
+        return -1;
+      }
+
+      ADD_ARG (argv, i, "-L");
+      ADD_ARG (argv, i, label);
+    }
+    else if (STREQ (fstype, "btrfs")) {
+      ADD_ARG (argv, i, "-L");
+      ADD_ARG (argv, i, label);
+    }
+    else {
+      reply_with_error ("don't know how to set the label for
'%s' filesystems",
+                        fstype);
+      return -1;
+    }
+  }
+
   ADD_ARG (argv, i, device);
   ADD_ARG (argv, i, NULL);
 
@@ -212,5 +253,5 @@ int
 do_mkfs_b (const char *fstype, int blocksize, const char *device)
 {
   optargs_bitmask = GUESTFS_MKFS_BLOCKSIZE_BITMASK;
-  return do_mkfs (fstype, device, blocksize, 0, 0, 0);
+  return do_mkfs (fstype, device, blocksize, 0, 0, 0, NULL);
 }
diff --git a/generator/actions.ml b/generator/actions.ml
index a6a6dad..96a9dd6 100644
--- a/generator/actions.ml
+++ b/generator/actions.ml
@@ -3324,7 +3324,7 @@ let daemon_functions = [
     tests = [
       InitEmpty, Always, TestResultString (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["write"; "/new"; "new file contents"];
          ["cat"; "/new"]], "new file contents"),
[]
@@ -4138,12 +4138,12 @@ characters does I<not> work, even if the length is
specified." };
     tests = [
       InitEmpty, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["mounts"]], "is_device_list (ret, 1,
\"/dev/sda1\")"), [];
       InitEmpty, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["umount"; "/"; "false";
"false"];
          ["mounts"]], "is_string_list (ret, 0)"), []
@@ -4186,9 +4186,9 @@ See also: C<guestfs_mountpoints>" };
          ["part_add"; "/dev/sda"; "p";
"64"; "204799"];
          ["part_add"; "/dev/sda"; "p";
"204800"; "409599"];
          ["part_add"; "/dev/sda"; "p";
"409600"; "-64"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
-         ["mkfs"; "ext2"; "/dev/sda2";
""; "NOARG"; ""; ""];
-         ["mkfs"; "ext2"; "/dev/sda3";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
+         ["mkfs"; "ext2"; "/dev/sda2";
""; "NOARG"; ""; ""; "NOARG"];
+         ["mkfs"; "ext2"; "/dev/sda3";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["mkdir"; "/mp1"];
          ["mount"; "/dev/sda2"; "/mp1"];
@@ -5478,7 +5478,7 @@ the human-readable, canonical hex dump of the file."
};
     tests = [
       InitNone, Always, TestResultString (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext3"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext3"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["write"; "/new"; "test file"];
          ["umount"; "/dev/sda1"; "false";
"false"];
@@ -5602,7 +5602,7 @@ are activated or deactivated." };
          ["pvcreate"; "/dev/sda1"];
          ["vgcreate"; "VG"; "/dev/sda1"];
          ["lvcreate"; "LV"; "VG";
"10"];
-         ["mkfs"; "ext2"; "/dev/VG/LV";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/VG/LV";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/VG/LV"; "/"];
          ["write"; "/new"; "test content"];
          ["umount"; "/"; "false";
"false"];
@@ -5669,11 +5669,11 @@ Sleep for C<secs> seconds." };
     tests = [
       InitNone, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["ntfs_3g_probe"; "true"; "/dev/sda1"]],
"ret == 0"), [];
       InitNone, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["ntfs_3g_probe"; "true"; "/dev/sda1"]],
"ret == 12"), []
     ];
     shortdesc = "probe NTFS volume";
@@ -8543,7 +8543,11 @@ a file in the host and attach it as a device." };
     tests = [
       InitBasicFS, Always, TestResultString (
         [["set_label"; "/dev/sda1"; "LTEST"];
-         ["vfs_label"; "/dev/sda1"]], "LTEST"),
[]
+         ["vfs_label"; "/dev/sda1"]], "LTEST"),
[];
+      InitEmpty, Always, TestResultString (
+        [["part_disk"; "/dev/sda"; "mbr"];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; "";
"test-label"];
+         ["vfs_label"; "/dev/sda1"]],
"test-label"), [];
     ];
     shortdesc = "get the filesystem label";
     longdesc = "\
@@ -9015,13 +9019,13 @@ See also C<guestfs_is_lv>,
C<guestfs_canonical_device_name>." };
 
   { defaults with
     name = "mkfs";
-    style = RErr, [String "fstype"; Device "device"], [OInt
"blocksize"; OString "features"; OInt "inode";
OInt "sectorsize"];
+    style = RErr, [String "fstype"; Device "device"], [OInt
"blocksize"; OString "features"; OInt "inode";
OInt "sectorsize"; OString "label"];
     proc_nr = Some 278;
     once_had_no_optargs = true;
     tests = [
       InitEmpty, Always, TestResultString (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["write"; "/new"; "new file contents"];
          ["cat"; "/new"]], "new file contents"),
[]
@@ -9761,7 +9765,7 @@ device." };
     optional = Some "ntfs3g";
     tests = [
       InitPartition, Always, TestRun (
-        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["ntfsfix"; "/dev/sda1"; "false"]]), []
     ];
     shortdesc = "fix common errors and force Windows to check NTFS";
@@ -9820,7 +9824,7 @@ any existing contents of this device." };
         [["set_label"; "/dev/sda1"; "testlabel"];
          ["vfs_label"; "/dev/sda1"]],
"testlabel"), [];
       InitPartition, IfAvailable "ntfs3g", TestResultString (
-        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["set_label"; "/dev/sda1";
"testlabel2"];
          ["vfs_label"; "/dev/sda1"]],
"testlabel2"), [];
       InitPartition, Always, TestLastFail (
@@ -10485,7 +10489,7 @@ call C<guestfs_max_disks>." };
     tests = [
       InitEmpty, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["xfs_info"; "/"]], "ret->xfs_blocksize ==
4096"), []
     ];
@@ -10585,7 +10589,7 @@ in the returned structure is defined by the API."
};
          ["pvcreate"; "/dev/sda1"];
          ["vgcreate"; "VG"; "/dev/sda1"];
          ["lvcreate"; "LV"; "VG";
"40"];
-         ["mkfs"; "xfs"; "/dev/VG/LV";
""; "NOARG"; ""; ""];
+         ["mkfs"; "xfs"; "/dev/VG/LV";
""; "NOARG"; ""; ""; "NOARG"];
          ["lvresize"; "/dev/VG/LV"; "80"];
          ["mount"; "/dev/VG/LV"; "/"];
          ["xfs_growfs"; "/"; "true";
"false"; "false"; ""; ""; "";
""; ""];
@@ -10722,7 +10726,7 @@ with zeroes)." };
     tests = [
       InitEmpty, Always, TestResult (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["xfs_admin"; "/dev/sda1"; "";
""; ""; ""; "false"; "NOARG";
"NOARG"];
          ["mount"; "/dev/sda1"; "/"];
          ["xfs_info"; "/"]], "ret->xfs_lazycount ==
0"), [];
@@ -10956,7 +10960,7 @@ This is a wrapper around the L<hivex(3)> call of
the same name." };
     tests = [
       InitEmpty, Always, TestRun (
         [["part_disk"; "/dev/sda"; "mbr"];
-         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
+         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
          ["xfs_repair"; "/dev/sda1"; "";
"true"; ""; ""; ""; "";
""; ""; "NOARG"; "NOARG"]
         ]), []
     ];
-- 
1.9.3

Pino Toscano

2015-Jan-13 09:38 UTC

head link

[Libguestfs] [PATCH] format, make-fs: specify the label on mkfs

If specified, pass the label for the new filesystem directly to the
mkfs (or mkfs_btrfs) call.

This saves one set_label call, mostly.
---
 format/format.c   | 10 ++++++----
 make-fs/make-fs.c | 28 +++++++++++++++++-----------
 2 files changed, 23 insertions(+), 15 deletions(-)

diff --git a/format/format.c b/format/format.c
index 4e6069f..cc371ab 100644
--- a/format/format.c
+++ b/format/format.c
@@ -434,13 +434,15 @@ do_format (void)
     }
 
     if (filesystem) {
-      if (guestfs_mkfs_opts (g, filesystem, dev, -1) == -1)
-        exit (EXIT_FAILURE);
+      struct guestfs_mkfs_opts_argv optargs = { .bitmask = 0 };
 
       if (label) {
-        if (guestfs_set_label (g, dev, label) == -1)
-          exit (EXIT_FAILURE);
+        optargs.label = label;
+        optargs.bitmask |= GUESTFS_MKFS_OPTS_LABEL_BITMASK;
       }
+
+      if (guestfs_mkfs_opts_argv (g, filesystem, dev, &optargs) == -1)
+        exit (EXIT_FAILURE);
     }
 
     if (free_dev)
diff --git a/make-fs/make-fs.c b/make-fs/make-fs.c
index 841c202..14729ad 100644
--- a/make-fs/make-fs.c
+++ b/make-fs/make-fs.c
@@ -755,9 +755,15 @@ do_make_fs (const char *input, const char *output_str)
   /* Create the filesystem. */
   if (STRNEQ (type, "btrfs")) {
     int r;
+    struct guestfs_mkfs_opts_argv optargs = { .bitmask = 0 };
+
+    if (label) {
+      optargs.label = label;
+      optargs.bitmask |= GUESTFS_MKFS_OPTS_LABEL_BITMASK;
+    }
 
     guestfs_push_error_handler (g, NULL, NULL);
-    r = guestfs_mkfs (g, type, dev);
+    r = guestfs_mkfs_opts_argv (g, type, dev, &optargs);
     guestfs_pop_error_handler (g);
 
     if (r == -1) {
@@ -774,17 +780,17 @@ do_make_fs (const char *input, const char *output_str)
   }
   else {
     const char *devs[] = { dev, NULL };
+    struct guestfs_mkfs_btrfs_argv optargs = { .bitmask = 0 };
+
+    optargs.datatype = "single";
+    optargs.metadata = "single";
+    optargs.bitmask |= GUESTFS_MKFS_BTRFS_DATATYPE_BITMASK |
GUESTFS_MKFS_BTRFS_METADATA_BITMASK;
+    if (label) {
+      optargs.label = label;
+      optargs.bitmask |= GUESTFS_MKFS_BTRFS_LABEL_BITMASK;
+    }
 
-    if (guestfs_mkfs_btrfs (g, (char **) devs,
-                            GUESTFS_MKFS_BTRFS_DATATYPE, "single",
-                            GUESTFS_MKFS_BTRFS_METADATA, "single",
-                            -1) == -1)
-      return -1;
-  }
-
-  /* Set label. */
-  if (label) {
-    if (guestfs_set_label (g, dev, label) == -1)
+    if (guestfs_mkfs_btrfs_argv (g, (char **) devs, &optargs) == -1)
       return -1;
   }
 
-- 
1.9.3

Richard W.M. Jones

2015-Jan-19 14:41 UTC

head link

Re: [Libguestfs] [PATCH] mkfs: add 'label' optional argument

On Tue, Jan 13, 2015 at 10:38:09AM +0100, Pino Toscano
wrote:> Add the 'label' optional argument to the mkfs action, so it is
possible
> to set a filesystem label direct when creating it. There may be
> filesystems not supporting changing the label of existing filesystems
> but only setting it at creation time, so this new optarg will help.
> 
> Implement it for the most common filesystems (ext*, fat, ntfs, btrfs,
> xfs), giving an error for all the others, just like set_label does.
> ---
>  daemon/mkfs.c        | 45 +++++++++++++++++++++++++++++++++++++++++++--
>  generator/actions.ml | 42 +++++++++++++++++++++++-------------------
>  2 files changed, 66 insertions(+), 21 deletions(-)
> 
> diff --git a/daemon/mkfs.c b/daemon/mkfs.c
> index 95ab874..2994307 100644
> --- a/daemon/mkfs.c
> +++ b/daemon/mkfs.c
> @@ -36,7 +36,7 @@ GUESTFSD_EXT_CMD(str_mkfs, mkfs);
>  /* Takes optional arguments, consult optargs_bitmask. */
>  int
>  do_mkfs (const char *fstype, const char *device, int blocksize,
> -         const char *features, int inode, int sectorsize)
> +         const char *features, int inode, int sectorsize, const char
*label)
>  {
>    const char *argv[MAX_ARGS];
>    size_t i = 0;
> @@ -194,6 +194,47 @@ do_mkfs (const char *fstype, const char *device, int
blocksize,
>      ADD_ARG (argv, i, sectorsize_str);
>    }
>  
> +  if (optargs_bitmask & GUESTFS_MKFS_LABEL_BITMASK) {
> +    if (extfs) {
> +      if (strlen (label) > EXT2_LABEL_MAX) {
> +        reply_with_error ("%s: ext2 labels are limited to %d
bytes",
> +                          label, EXT2_LABEL_MAX);
> +        return -1;
> +      }
> +
> +      ADD_ARG (argv, i, "-L");
> +      ADD_ARG (argv, i, label);
> +    }
> +    else if (STREQ (fstype, "fat") || STREQ (fstype,
"vfat") ||
> +             STREQ (fstype, "msdos")) {
> +      ADD_ARG (argv, i, "-n");
> +      ADD_ARG (argv, i, label);
> +    }
> +    else if (STREQ (fstype, "ntfs")) {
> +      ADD_ARG (argv, i, "-L");
> +      ADD_ARG (argv, i, label);
> +    }
> +    else if (STREQ (fstype, "xfs")) {
> +      if (strlen (label) > XFS_LABEL_MAX) {
> +        reply_with_error ("%s: xfs labels are limited to %d
bytes",
> +                          label, XFS_LABEL_MAX);
> +        return -1;
> +      }
> +
> +      ADD_ARG (argv, i, "-L");
> +      ADD_ARG (argv, i, label);
> +    }
> +    else if (STREQ (fstype, "btrfs")) {
> +      ADD_ARG (argv, i, "-L");
> +      ADD_ARG (argv, i, label);
> +    }
> +    else {
> +      reply_with_error ("don't know how to set the label for
'%s' filesystems",
> +                        fstype);
> +      return -1;
> +    }
> +  }
> +
>    ADD_ARG (argv, i, device);
>    ADD_ARG (argv, i, NULL);
>  
> @@ -212,5 +253,5 @@ int
>  do_mkfs_b (const char *fstype, int blocksize, const char *device)
>  {
>    optargs_bitmask = GUESTFS_MKFS_BLOCKSIZE_BITMASK;
> -  return do_mkfs (fstype, device, blocksize, 0, 0, 0);
> +  return do_mkfs (fstype, device, blocksize, 0, 0, 0, NULL);
>  }
> diff --git a/generator/actions.ml b/generator/actions.ml
> index a6a6dad..96a9dd6 100644
> --- a/generator/actions.ml
> +++ b/generator/actions.ml
> @@ -3324,7 +3324,7 @@ let daemon_functions = [
>      tests = [
>        InitEmpty, Always, TestResultString (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["write"; "/new"; "new file
contents"];
>           ["cat"; "/new"]], "new file
contents"), []
> @@ -4138,12 +4138,12 @@ characters does I<not> work, even if the
length is specified." };
>      tests = [
>        InitEmpty, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["mounts"]], "is_device_list (ret, 1,
\"/dev/sda1\")"), [];
>        InitEmpty, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["umount"; "/"; "false";
"false"];
>           ["mounts"]], "is_string_list (ret, 0)"), []
> @@ -4186,9 +4186,9 @@ See also: C<guestfs_mountpoints>" };
>           ["part_add"; "/dev/sda"; "p";
"64"; "204799"];
>           ["part_add"; "/dev/sda"; "p";
"204800"; "409599"];
>           ["part_add"; "/dev/sda"; "p";
"409600"; "-64"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> -         ["mkfs"; "ext2"; "/dev/sda2";
""; "NOARG"; ""; ""];
> -         ["mkfs"; "ext2"; "/dev/sda3";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
> +         ["mkfs"; "ext2"; "/dev/sda2";
""; "NOARG"; ""; ""; "NOARG"];
> +         ["mkfs"; "ext2"; "/dev/sda3";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["mkdir"; "/mp1"];
>           ["mount"; "/dev/sda2"; "/mp1"];
> @@ -5478,7 +5478,7 @@ the human-readable, canonical hex dump of the
file." };
>      tests = [
>        InitNone, Always, TestResultString (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext3"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext3"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["write"; "/new"; "test file"];
>           ["umount"; "/dev/sda1"; "false";
"false"];
> @@ -5602,7 +5602,7 @@ are activated or deactivated." };
>           ["pvcreate"; "/dev/sda1"];
>           ["vgcreate"; "VG"; "/dev/sda1"];
>           ["lvcreate"; "LV"; "VG";
"10"];
> -         ["mkfs"; "ext2"; "/dev/VG/LV";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/VG/LV";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/VG/LV"; "/"];
>           ["write"; "/new"; "test content"];
>           ["umount"; "/"; "false";
"false"];
> @@ -5669,11 +5669,11 @@ Sleep for C<secs> seconds." };
>      tests = [
>        InitNone, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["ntfs_3g_probe"; "true";
"/dev/sda1"]], "ret == 0"), [];
>        InitNone, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["ntfs_3g_probe"; "true";
"/dev/sda1"]], "ret == 12"), []
>      ];
>      shortdesc = "probe NTFS volume";
> @@ -8543,7 +8543,11 @@ a file in the host and attach it as a device."
};
>      tests = [
>        InitBasicFS, Always, TestResultString (
>          [["set_label"; "/dev/sda1";
"LTEST"];
> -         ["vfs_label"; "/dev/sda1"]],
"LTEST"), []
> +         ["vfs_label"; "/dev/sda1"]],
"LTEST"), [];
> +      InitEmpty, Always, TestResultString (
> +        [["part_disk"; "/dev/sda"; "mbr"];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; "";
"test-label"];
> +         ["vfs_label"; "/dev/sda1"]],
"test-label"), [];
>      ];
>      shortdesc = "get the filesystem label";
>      longdesc = "\
> @@ -9015,13 +9019,13 @@ See also C<guestfs_is_lv>,
C<guestfs_canonical_device_name>." };
>  
>    { defaults with
>      name = "mkfs";
> -    style = RErr, [String "fstype"; Device "device"],
[OInt "blocksize"; OString "features"; OInt
"inode"; OInt "sectorsize"];
> +    style = RErr, [String "fstype"; Device "device"],
[OInt "blocksize"; OString "features"; OInt
"inode"; OInt "sectorsize"; OString "label"];
>      proc_nr = Some 278;
>      once_had_no_optargs = true;
>      tests = [
>        InitEmpty, Always, TestResultString (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "ext2"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["write"; "/new"; "new file
contents"];
>           ["cat"; "/new"]], "new file
contents"), []
> @@ -9761,7 +9765,7 @@ device." };
>      optional = Some "ntfs3g";
>      tests = [
>        InitPartition, Always, TestRun (
> -        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["ntfsfix"; "/dev/sda1";
"false"]]), []
>      ];
>      shortdesc = "fix common errors and force Windows to check
NTFS";
> @@ -9820,7 +9824,7 @@ any existing contents of this device." };
>          [["set_label"; "/dev/sda1";
"testlabel"];
>           ["vfs_label"; "/dev/sda1"]],
"testlabel"), [];
>        InitPartition, IfAvailable "ntfs3g", TestResultString (
> -        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +        [["mkfs"; "ntfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["set_label"; "/dev/sda1";
"testlabel2"];
>           ["vfs_label"; "/dev/sda1"]],
"testlabel2"), [];
>        InitPartition, Always, TestLastFail (
> @@ -10485,7 +10489,7 @@ call C<guestfs_max_disks>." };
>      tests = [
>        InitEmpty, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["xfs_info"; "/"]],
"ret->xfs_blocksize == 4096"), []
>      ];
> @@ -10585,7 +10589,7 @@ in the returned structure is defined by the
API." };
>           ["pvcreate"; "/dev/sda1"];
>           ["vgcreate"; "VG"; "/dev/sda1"];
>           ["lvcreate"; "LV"; "VG";
"40"];
> -         ["mkfs"; "xfs"; "/dev/VG/LV";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "xfs"; "/dev/VG/LV";
""; "NOARG"; ""; ""; "NOARG"];
>           ["lvresize"; "/dev/VG/LV"; "80"];
>           ["mount"; "/dev/VG/LV"; "/"];
>           ["xfs_growfs"; "/"; "true";
"false"; "false"; ""; ""; "";
""; ""];
> @@ -10722,7 +10726,7 @@ with zeroes)." };
>      tests = [
>        InitEmpty, Always, TestResult (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["xfs_admin"; "/dev/sda1"; "";
""; ""; ""; "false"; "NOARG";
"NOARG"];
>           ["mount"; "/dev/sda1"; "/"];
>           ["xfs_info"; "/"]],
"ret->xfs_lazycount == 0"), [];
> @@ -10956,7 +10960,7 @@ This is a wrapper around the L<hivex(3)> call
of the same name." };
>      tests = [
>        InitEmpty, Always, TestRun (
>          [["part_disk"; "/dev/sda"; "mbr"];
> -         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""];
> +         ["mkfs"; "xfs"; "/dev/sda1";
""; "NOARG"; ""; ""; "NOARG"];
>           ["xfs_repair"; "/dev/sda1"; "";
"true"; ""; ""; ""; "";
""; ""; "NOARG"; "NOARG"]
>          ]), []
>      ];
Looks good, ACK.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top

Richard W.M. Jones

2015-Jan-19 14:43 UTC

head link

Re: [Libguestfs] [PATCH] format, make-fs: specify the label on mkfs

On Tue, Jan 13, 2015 at 10:38:10AM +0100, Pino Toscano
wrote:> If specified, pass the label for the new filesystem directly to the
> mkfs (or mkfs_btrfs) call.
> 
> This saves one set_label call, mostly.
> ---
>  format/format.c   | 10 ++++++----
>  make-fs/make-fs.c | 28 +++++++++++++++++-----------
>  2 files changed, 23 insertions(+), 15 deletions(-)
> 
> diff --git a/format/format.c b/format/format.c
> index 4e6069f..cc371ab 100644
> --- a/format/format.c
> +++ b/format/format.c
> @@ -434,13 +434,15 @@ do_format (void)
>      }
>  
>      if (filesystem) {
> -      if (guestfs_mkfs_opts (g, filesystem, dev, -1) == -1)
> -        exit (EXIT_FAILURE);
> +      struct guestfs_mkfs_opts_argv optargs = { .bitmask = 0 };
>  
>        if (label) {
> -        if (guestfs_set_label (g, dev, label) == -1)
> -          exit (EXIT_FAILURE);
> +        optargs.label = label;
> +        optargs.bitmask |= GUESTFS_MKFS_OPTS_LABEL_BITMASK;
>        }
> +
> +      if (guestfs_mkfs_opts_argv (g, filesystem, dev, &optargs) == -1)
> +        exit (EXIT_FAILURE);
>  
>      if (free_dev)
> diff --git a/make-fs/make-fs.c b/make-fs/make-fs.c
> index 841c202..14729ad 100644
> --- a/make-fs/make-fs.c
> +++ b/make-fs/make-fs.c
> @@ -755,9 +755,15 @@ do_make_fs (const char *input, const char *output_str)
>    /* Create the filesystem. */
>    if (STRNEQ (type, "btrfs")) {
>      int r;
> +    struct guestfs_mkfs_opts_argv optargs = { .bitmask = 0 };
> +
> +    if (label) {
> +      optargs.label = label;
> +      optargs.bitmask |= GUESTFS_MKFS_OPTS_LABEL_BITMASK;
> +    }
>  
>      guestfs_push_error_handler (g, NULL, NULL);
> -    r = guestfs_mkfs (g, type, dev);
> +    r = guestfs_mkfs_opts_argv (g, type, dev, &optargs);
>      guestfs_pop_error_handler (g);
>  
>      if (r == -1) {
> @@ -774,17 +780,17 @@ do_make_fs (const char *input, const char
*output_str)
>    }
>    else {
>      const char *devs[] = { dev, NULL };
> +    struct guestfs_mkfs_btrfs_argv optargs = { .bitmask = 0 };
> +
> +    optargs.datatype = "single";
> +    optargs.metadata = "single";
> +    optargs.bitmask |= GUESTFS_MKFS_BTRFS_DATATYPE_BITMASK |
GUESTFS_MKFS_BTRFS_METADATA_BITMASK;
> +    if (label) {
> +      optargs.label = label;
> +      optargs.bitmask |= GUESTFS_MKFS_BTRFS_LABEL_BITMASK;
> +    }
>  
> -    if (guestfs_mkfs_btrfs (g, (char **) devs,
> -                            GUESTFS_MKFS_BTRFS_DATATYPE,
"single",
> -                            GUESTFS_MKFS_BTRFS_METADATA,
"single",
> -                            -1) == -1)
> -      return -1;
> -  }
> -
> -  /* Set label. */
> -  if (label) {
> -    if (guestfs_set_label (g, dev, label) == -1)
> +    if (guestfs_mkfs_btrfs_argv (g, (char **) devs, &optargs) == -1)
>        return -1;
>    }
>  
> -- 
> 1.9.3
ACK.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
virt-top is 'top' for virtual machines.  Tiny program with many
powerful monitoring features, net stats, disk stats, logging, etc.
http://people.redhat.com/~rjones/virt-top

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