From: David Sterba <dsterba@suse.cz>
Date: Fri, 20 Jun 2014 09:43:20 +0000 (+0200)
Subject: btrfs: use E2BIG instead of EIO if compression does not help
X-Git-Tag: v4.9.8~6070^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=130d5b415a091e493ac1508b9d27bbb85ba7b8c0;p=platform%2Fkernel%2Flinux-rpi3.git

btrfs: use E2BIG instead of EIO if compression does not help

Return codes got updated in 60e1975acb48fc3d74a3422b21dde74c977ac3d5
(btrfs: return errno instead of -1 from compression)
lzo wrapper returns E2BIG in this case, do the same for zlib.

Signed-off-by: David Sterba <dsterba@suse.cz>
---

diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c
index 4f19631..b67d8fc 100644
--- a/fs/btrfs/zlib.c
+++ b/fs/btrfs/zlib.c
@@ -136,7 +136,7 @@ static int zlib_compress_pages(struct list_head *ws,
 		if (workspace->def_strm.total_in > 8192 &&
 		    workspace->def_strm.total_in <
 		    workspace->def_strm.total_out) {
-			ret = -EIO;
+			ret = -E2BIG;
 			goto out;
 		}
 		/* we need another page for writing out.  Test this