From: Patrick Farrell <pfarrell@whamcloud.com>
Date: Thu, 28 Sep 2023 00:09:03 +0000 (-0400)
Subject: EX-8245 ptlrpc: always do vmalloc
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=f0874ea680e31819ca4028e3760eaf5a5959621a;p=fs%2Flustre-release.git

EX-8245 ptlrpc: always do vmalloc

If we were ever to do an allocation with kmalloc, we could
get non-page aligned memory.  So just use vmalloc directly.

Sadly, this isn't the problem with infiniband.  We never
ask for < 8192, which is the libcfs kmalloc/vmalloc cutoff.

Still, this is a timebomb if we ever changed the libcfs
kmalloc/vmalloc cutoff, so, fix it.

Signed-off-by: Patrick Farrell <pfarrell@whamcloud.com>
Change-Id: Id20898065b516d363d9dc280e71be1b5cfb6f4a7
Reviewed-on: https://review.whamcloud.com/c/ex/lustre-release/+/52532
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
---

diff --git a/lustre/ptlrpc/sec_bulk.c b/lustre/ptlrpc/sec_bulk.c
index a413cab..9ec2d56 100644
--- a/lustre/ptlrpc/sec_bulk.c
+++ b/lustre/ptlrpc/sec_bulk.c
@@ -557,7 +557,7 @@ static int pool_add_pages(int npages, struct ptlrpc_page_pool *page_pool)
 				ptr_pages[i][j] = alloc_page(GFP_NOFS |
 					__GFP_HIGHMEM);
 			else {
-				OBD_ALLOC_LARGE(ptr_pages[i][j],
+				OBD_VMALLOC(ptr_pages[i][j],
 					element_size(page_pool));
 			}
 			if (ptr_pages[i][j] == NULL)