From: Tejun Heo <tj@kernel.org>
Date: Thu, 28 Nov 2013 19:54:41 +0000 (-0500)
Subject: sysfs, kernfs: make inode number ida per kernfs_root
X-Git-Tag: v3.14-rc1~151^2~80
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bc755553df9ab33f389c1a0a8bd0b4f4646e80ef;p=pandora-kernel.git

sysfs, kernfs: make inode number ida per kernfs_root

kernfs is being updated to allow multiple sysfs_dirent hierarchies so
that it can also be used by other users.  Currently, inode number is
allocated using a global ida, sysfs_ino_ida; however, inos for
different hierarchies should be handled separately.

This patch makes ino allocation per kernfs_root.  sysfs_ino_ida is
replaced by kernfs_root->ino_ida and sysfs_new_dirent() is updated to
take @root and allocate ino from it.  ida_simple_get/remove() are used
instead of sysfs_ino_lock and sysfs_alloc/free_ino().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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