From: Maxim Patlasov <mpatlasov@parallels.com>
Date: Fri, 26 Oct 2012 15:49:33 +0000 (+0400)
Subject: fuse: use req->page_descs[] for argpages cases
X-Git-Tag: v3.9-rc1~135^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=85f40aec887110ae6bbefa87988def4606a3d583;p=pandora-kernel.git

fuse: use req->page_descs[] for argpages cases

Previously, anyone who set flag 'argpages' only filled req->pages[] and set
per-request page_offset. This patch re-works all cases where argpages=1 to
fill req->page_descs[] properly.

Having req->page_descs[] filled properly allows to re-work fuse_copy_pages()
to copy page fragments described by req->page_descs[]. This will be useful
for next patches optimizing direct_IO.

Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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