From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Mon, 3 Mar 2025 22:16:21 +0000 (+0000)
Subject: f2fs: set highest IO priority for checkpoint thread
X-Git-Tag: v6.15-rc1~151^2~24
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8a2d9f00d502e6ef68c6d52f0863856040ddd2db;p=thirdparty%2Fkernel%2Fstable.git

f2fs: set highest IO priority for checkpoint thread

The checkpoint is the top priority thread which can stop all the filesystem
operations. Let's make it RT priority.

Reviewed-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 75b7196d2c810..a35595f8d3f51 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -21,7 +21,7 @@
 #include "iostat.h"
 #include <trace/events/f2fs.h>
 
-#define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 3))
+#define DEFAULT_CHECKPOINT_IOPRIO (IOPRIO_PRIO_VALUE(IOPRIO_CLASS_RT, 3))
 
 static struct kmem_cache *ino_entry_slab;
 struct kmem_cache *f2fs_inode_entry_slab;