From: Mr NeilBrown <neilb@suse.de>
Date: Thu, 10 Dec 2020 21:41:34 +0000 (+1100)
Subject: LU-13839 ldiskfs: fix detecting ext4_journal_ensure_credits
X-Git-Tag: 2.14.0-RC1~56
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=2cebaa2bc5cd0554ae2b0b625cf9b6da0b1a16c6;p=fs%2Flustre-release.git

LU-13839 ldiskfs: fix detecting ext4_journal_ensure_credits

As __ext4_journal_ensure_credits() is not exported, the current
detection doesn't work.
So add a local definition so that the build succeeds.

Fixes: cf48a2d23bca ("LU-13839 kernel: RHEL 8.3 server support")
Test-Parameters: trivial
Signed-off-by: Mr NeilBrown <neilb@suse.de>
Change-Id: I5f4b0883e8425d26760ea77e89379103dce30855
Reviewed-on: https://review.whamcloud.com/40939
Tested-by: jenkins <devops@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Jian Yu <yujian@whamcloud.com>
---

diff --git a/config/lustre-build-ldiskfs.m4 b/config/lustre-build-ldiskfs.m4
index cc282ce..74fdbf3 100644
--- a/config/lustre-build-ldiskfs.m4
+++ b/config/lustre-build-ldiskfs.m4
@@ -242,6 +242,8 @@ EXTRA_KCFLAGS="-Werror"
 LB_CHECK_COMPILE([if 'ext4_journal_ensure_credits' exists],
 ext4_journal_ensure_credits, [
 	#include "$EXT4_SRC_DIR/ext4_jbd2.h"
+	int __ext4_journal_ensure_credits(handle_t *handle, int check_cred,
+		int extend_cred, int revoke_cred) { return 0; }
 ],[
 	ext4_journal_ensure_credits(NULL, 0, 0);
 ],[