On 2012-10-12 07:20, Anand jain wrote:
From: Anand Jain<anand.jain@xxxxxxxxxx>
This will add a sub command to show information about a subvol.
eg:
btrfs su show /btrfs/sssv3
/btrfs/sssv3
uuid: c5d646b5-a749-c646-b082-6d9a3ca870be
Parent uuid: 34bc8edd-113f-5141-a814-f6dfae069b01
Creation time: 2012-10-12 11:37:00
+
+/* if in case we decide to have more available data
+ to be shown we can use it as below.
+
+ printf("Object ID: %llu", get_ri.root_id);
+ printf("\n");
+ printf("Generation: %llu", get_ri.gen);
+ printf("\n");
+ printf("OGeneration: %llu", get_ri.ogen);
+ printf("\n");
+ printf("Parent: %llu", get_ri.ref_tree);
+ printf("\n");
+ printf("Top Level: %llu", get_ri.top_id);
+ printf("\n");
+*/
Please, add a switch to show this further data. Does the flags contains
sensible data ?
+
+ /* clean up */
+ if (get_ri.path)
+ free(get_ri.path);
+ if (get_ri.name)
+ free(get_ri.name);
+ if (get_ri.full_path)
+ free(get_ri.full_path);
+
+ close(fd);
+ free(mnt);
+ return 0;
+}
+
const struct cmd_group subvolume_cmd_group = {
subvolume_cmd_group_usage, NULL, {
{ "create", cmd_subvol_create, cmd_subvol_create_usage, NULL, 0 },
@@ -714,6 +826,7 @@ const struct cmd_group subvolume_cmd_group = {
{ "set-default", cmd_subvol_set_default,
cmd_subvol_set_default_usage, NULL, 0 },
{ "find-new", cmd_find_new, cmd_find_new_usage, NULL, 0 },
+ { "show", cmd_subvol_show, cmd_subvol_show_usage, NULL, 0 },
{ 0, 0, 0, 0, 0 }
}
};
diff --git a/man/btrfs.8.in b/man/btrfs.8.in
index 9222580..57c25b0 100644
--- a/man/btrfs.8.in
+++ b/man/btrfs.8.in
@@ -17,6 +17,8 @@ btrfs \- control a btrfs filesystem
.PP
\fBbtrfs\fP \fBsubvolume get-default\fP\fI<path>\fP
.PP
+\fBbtrfs\fP \fBsubvolume show\fP\fI<path>\fP
+.PP
\fBbtrfs\fP \fBfilesystem defragment\fP -c[zlib|lzo] [-l \fIlen\fR] \
[-s \fIstart\fR] [-t \fIsize\fR] -[vf]<\fIfile\fR>|<\fIdir\fR> \
[<\fIfile\fR>|<\fIdir\fR>...]
@@ -160,6 +162,10 @@ Get the default subvolume of the filesystem \fI<path>\fR. The output format
is similar to \fBsubvolume list\fR command.
.TP
+\fBsubvolume show\fR\fI<path>\fR
+Show information of a given subvolume in the \fI<path>\fR.
+.TP
It is possible to allow "btrfs subvolume show" to process multiple paths ?
btrfs sub show <subv1> [<subvol2> ... ]
+
\fBfilesystem defragment\fP -c[zlib|lzo] [-l \fIlen\fR] [-s \fIstart\fR] \
[-t \fIsize\fR] -[vf]<\fIfile\fR>|<\fIdir\fR> [<\fIfile\fR>|<\fIdir\fR>...]
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