From: Miklos Szeredi <mszeredi@suse.cz>
Date: Thu, 2 Apr 2009 12:25:35 +0000 (+0200)
Subject: fuse: allow private mappings of "direct_io" files
X-Git-Tag: v2.6.30-rc1~217^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fc280c9692031ee41545d6bea00bbb7c7dec97a9;p=pandora-kernel.git

fuse: allow private mappings of "direct_io" files

Allow MAP_PRIVATE mmaps of "direct_io" files.  This is necessary for
execute support.

MAP_SHARED mappings require some sort of coherency between the
underlying file and the mapping.  With "direct_io" it is difficult to
provide this, so for the moment just disallow shared (read-write and
read-only) mappings altogether.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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