File 0021-LU-15726-osd-ldiskfs-Increase-journal-credits-reserv.patch of Package lustre_2_15

From 1c9cf22b23440213bcfe6b3db9be9fe5a41a48a6 Mon Sep 17 00:00:00 2001
From: Shaun Tancheff <shaun.tancheff@hpe.com>
Date: Sat, 23 Jul 2022 10:07:19 +0700
Subject: [PATCH 21/30] LU-15726 osd-ldiskfs: Increase journal credits
 reservation

Increase journal credits by 1 level

Signed-off-by: Shaun Tancheff <shaun.tancheff@hpe.com>
Change-Id: I1ccb9dab8331f3ca0186b28b51745e1cd52d7ad3
---
 lustre/osd-ldiskfs/osd_io.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/lustre/osd-ldiskfs/osd_io.c b/lustre/osd-ldiskfs/osd_io.c
index 444b24ff9cf0..a3d0c8b04895 100644
--- a/lustre/osd-ldiskfs/osd_io.c
+++ b/lustre/osd-ldiskfs/osd_io.c
@@ -1887,8 +1887,8 @@ int osd_calc_bkmap_credits(struct super_block *sb, struct inode *inode,
 	 * so let's shrink it to 2 levels (4GB files)
 	 */
 
-	/* this is default reservation: 2 levels */
-	credits = (blocks + 2) * 3;
+	/* this is default reservation: 3 levels */
+	credits = (blocks + 3) * 3;
 
 	/* actual offset is unknown, hard to optimize */
 	if (pos == -1)
@@ -1900,20 +1900,20 @@ int osd_calc_bkmap_credits(struct super_block *sb, struct inode *inode,
 		credits = blocks;
 		/* allocate if not allocated */
 		if (inode == NULL) {
-			credits += blocks * 2;
+			credits += blocks * 3;
 			return credits;
 		}
 		for (i = (pos >> bits); i < (pos >> bits) + blocks; i++) {
 			LASSERT(i < LDISKFS_NDIR_BLOCKS);
 			if (LDISKFS_I(inode)->i_data[i] == 0)
-				credits += 2;
+				credits += 3;
 		}
 	} else if (pos + size <= (LDISKFS_NDIR_BLOCKS + 1024) * bs) {
 		/* single indirect */
-		credits = blocks * 3;
+		credits = blocks * 4;
 		if (inode == NULL ||
 		    LDISKFS_I(inode)->i_data[LDISKFS_IND_BLOCK] == 0)
-			credits += 3;
+			credits += 4;
 		else
 			/* The indirect block may be modified. */
 			credits += 1;
@@ -1989,7 +1989,7 @@ static ssize_t osd_declare_write(const struct lu_env *env, struct dt_object *dt,
 		if (_pos != -1)
 			credits += depth;
 		/* blocks to store data: bitmap,gd,itself */
-		credits += blocks * 3;
+		credits += blocks * 4;
 	} else {
 		credits = osd_calc_bkmap_credits(sb, inode, size, _pos, blocks);
 	}
-- 
2.38.1