File 0186-btrfs-progs-document-devid-parameter-for-resize.patch of Package btrfsprogs.442

From a8d78caea3bd1983181806f5110288f23c776005 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Mon, 26 Mar 2012 18:00:58 +0200
Subject: [PATCH 03/10] btrfs-progs: document devid parameter for resize

Based on patch from Goffredo Baroncelli.

Signed-off-by: David Sterba <dsterba@suse.cz>
---
 btrfs_cmds.c |   15 +++++++++------
 1 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/btrfs_cmds.c b/btrfs_cmds.c
index 26a0700..0a741f0 100644
--- a/btrfs_cmds.c
+++ b/btrfs_cmds.c
@@ -804,10 +804,9 @@ int do_scan(int argc, char **argv)
 
 /**** man: btrfs filesystem resize
  * 
- * \Bbtrfs\b \Bfilesystem resize\b\I [+/\-]<size>[gkm]|max <path>\i
+ * \Bbtrfs\b \Bfilesystem resize\b\I [<devid>:][+/\-]<size>[gkm]|max <path>\i
  * 
- * Resize the file system. If 'max' is passed, the filesystem
- * will occupe all available space on the device.
+ * Resize the file system.
  * 
  * Resize a filesystem identified by \I<path>\i.
  * The \I<size>\i parameter specifies the new size of the filesystem.
@@ -818,13 +817,17 @@ int do_scan(int argc, char **argv)
  * the units designators: 'K', 'M', or 'G', kilobytes, megabytes, or gigabytes,
  * respectively.
  * 
- * If 'max' is passed, the filesystem will occupy all available space on the
+ * If 'max' is specified, the filesystem will occupy all available space on the
  * volume(s).
  * 
- * The \Bresize\b command \Bdoes not\b manipulate the size of underlying
- * partition.  If you wish to enlarge/reduce a filesystem, you must make sure
+ * The \Bresize\b command \Bdoes not\b manipulate the size of the underlying
+ * partition.  If you wish to enlarge/reduce a filesystem, you have to make sure
  * you can expand the partition before enlarging the filesystem and shrink the
  * partition after reducing the size of the filesystem.
+ * 
+ * When the filesystem consists of multiple devices, it is possible to specify
+ * which one should be resized via the <devid> parameter.  To know the <devid>
+ * of a device use the command \fBbtrfs filesystem show\fR.
  ****/
 
 int do_resize(int argc, char **argv)
-- 
1.7.6.233.gd79bc