From 62b62ad873f2accad9222a4d7ffbe1e93f6714c1 Mon Sep 17 00:00:00 2001 From: Boaz Harrosh Date: Fri, 8 Jun 2012 04:30:40 +0300 Subject: [PATCH] ore: Remove support of partial IO request (NFS crash) Do to OOM situations the ore might fail to allocate all resources needed for IO of the full request. If some progress was possible it would proceed with a partial/short request, for the sake of forward progress. Since this crashes NFS-core and exofs is just fine without it just remove this contraption, and fail. TODO: Support real forward progress with some reserved allocations of resources, such as mem pools and/or bio_sets [Bug since 3.2 Kernel] CC: Stable Tree CC: Benny Halevy Signed-off-by: Boaz Harrosh --- fs/exofs/ore.c | 8 +------- 1 file changed, 1 insertion(+), 7 deletions(-) diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c index 49cf230554a2..24a49d47e935 100644 --- a/fs/exofs/ore.c +++ b/fs/exofs/ore.c @@ -735,13 +735,7 @@ static int _prepare_for_striping(struct ore_io_state *ios) out: ios->numdevs = devs_in_group; ios->pages_consumed = cur_pg; - if (unlikely(ret)) { - if (length == ios->length) - return ret; - else - ios->length -= length; - } - return 0; + return ret; } int ore_create(struct ore_io_state *ios) -- 2.20.1