f2fs: set highest IO priority for checkpoint thread

[PATCH] f2fs: set highest IO priority for checkpoint thread

Posted by Jaegeuk Kim 11 months, 1 week ago

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

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 fs/f2fs/checkpoint.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index bd890738b94d..8dbb815a35c0 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;
-- 
2.48.1.711.g2feabab25a-goog

Re: [f2fs-dev] [PATCH] f2fs: set highest IO priority for checkpoint thread

Posted by Chao Yu 11 months, 1 week ago

On 3/4/25 06:17, Jaegeuk Kim via Linux-f2fs-devel wrote:
> The checkpoint is the top priority thread which can stop all the filesystem
> operations. Let's make it RT priority.
> 
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

Reviewed-by: Chao Yu <chao@kernel.org>

Thanks,

Re: [f2fs-dev] [PATCH] f2fs: set highest IO priority for checkpoint thread

Posted by Daeho Jeong 11 months, 1 week ago

On Mon, Mar 3, 2025 at 2:19 PM Jaegeuk Kim via Linux-f2fs-devel
<linux-f2fs-devel@lists.sourceforge.net> wrote:
>
> The checkpoint is the top priority thread which can stop all the filesystem
> operations. Let's make it RT priority.
>
> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
> ---
>  fs/f2fs/checkpoint.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
> index bd890738b94d..8dbb815a35c0 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;
> --
> 2.48.1.711.g2feabab25a-goog
>

Reviewed-by: Daeho Jeong <daehojeong@google.com>

>
>
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