Messages in this thread | | | Date | Thu, 14 Jan 2010 05:13:08 +0000 | From | Al Viro <> | Subject | Re: [PATCH 1/8] vfs: fix too big f_pos handling |
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On Wed, Jan 13, 2010 at 10:09:56PM +0800, Wu, Fengguang wrote: > From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> > > Now, rw_verify_area() checsk f_pos is negative or not. And if > negative, returns -EINVAL. > > But, some special files as /dev/(k)mem and /proc/<pid>/mem etc.. > has negative offsets. And we can't do any access via read/write > to the file(device). > > This patch introduce a flag S_VERYBIG and allow negative file > offsets.
Ehh... FMODE_NEG_OFFSET in file->f_mode, perhaps?
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