From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 19 Jul 2012 22:25:00 +0000 (+0400)
Subject: pull mnt_want_write()/mnt_drop_write() into kern_path_create()/done_path_create(... 
X-Git-Tag: v3.6-rc1~18^2~47
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8104a9fcdeb82e22d7acd55fca20746581067d3;p=pandora-kernel.git

pull mnt_want_write()/mnt_drop_write() into kern_path_create()/done_path_create() resp.

One side effect - attempt to create a cross-device link on a read-only fs fails
with EROFS instead of EXDEV now.  Makes more sense, POSIX allows, etc.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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