From: John L. Hammond <john.hammond@intel.com>
Date: Thu, 1 Mar 2018 04:52:31 +0000 (-0800)
Subject: LU-10331 out: use OBD_ALLOC_LARGE() for update buffers
X-Git-Tag: 2.10.4-RC1~80
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=7c1373e769f300efcd35c16ce193df682ddfa52f;p=fs%2Flustre-release.git

LU-10331 out: use OBD_ALLOC_LARGE() for update buffers

In out_handle() the update buffers may be up to 100KB so use
OBD_ALLOC_LARGE() to avoid high order page allocation errors.

This patch is back-ported from the following one:
Lustre-commit: f8987f51967ff5be46fa1d232de21644af927037
Lustre-change: https://review.whamcloud.com/30455

Change-Id: I184e4a46a0d62eb840c07f4ede990e0a659a4e1b
Signed-off-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Reviewed-by: Alex Zhuravlev <alexey.zhuravlev@intel.com>
Reviewed-on: https://review.whamcloud.com/31474
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
---

diff --git a/lustre/target/out_handler.c b/lustre/target/out_handler.c
index bd7dc7f..c342ae4 100644
--- a/lustre/target/out_handler.c
+++ b/lustre/target/out_handler.c
@@ -967,7 +967,7 @@ int out_handle(struct tgt_session_info *tsi)
 			if (tmp->oub_size >= OUT_MAXREQSIZE)
 				GOTO(out_free, rc = err_serious(-EPROTO));
 
-			OBD_ALLOC(update_bufs[i], tmp->oub_size);
+			OBD_ALLOC_LARGE(update_bufs[i], tmp->oub_size);
 			if (update_bufs[i] == NULL)
 				GOTO(out_free, rc = err_serious(-ENOMEM));
 
@@ -1165,7 +1165,8 @@ out_free:
 		if (oub != NULL) {
 			for (i = 0; i < update_buf_count; i++, oub++) {
 				if (update_bufs[i] != NULL)
-					OBD_FREE(update_bufs[i], oub->oub_size);
+					OBD_FREE_LARGE(update_bufs[i],
+						       oub->oub_size);
 			}
 		}