diff mbox series

[v4,13/17] file: port to struct kmem_cache_args

Message ID 20240905-work-kmem_cache_args-v4-13-ed45d5380679@kernel.org (mailing list archive)
State New
Headers show
Series slab: add struct kmem_cache_args | expand

Commit Message

Christian Brauner Sept. 5, 2024, 7:56 a.m. UTC 
Port filp_cache to struct kmem_cache_args.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 fs/file_table.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

Comments

Roman Gushchin Sept. 6, 2024, 1:06 a.m. UTC | #1 
On Thu, Sep 05, 2024 at 09:56:56AM +0200, Christian Brauner wrote:
> Port filp_cache to struct kmem_cache_args.
> 
> Reviewed-by: Kees Cook <kees@kernel.org>
> Reviewed-by: Jens Axboe <axboe@kernel.dk>
> Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
> Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
> Signed-off-by: Christian Brauner <brauner@kernel.org>

Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
diff mbox series

Patch

diff --git a/fs/file_table.c b/fs/file_table.c
index 3ef558f27a1c..861c03608e83 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -511,9 +511,14 @@  EXPORT_SYMBOL(__fput_sync);
 
 void __init files_init(void)
 {
-	filp_cachep = kmem_cache_create_rcu("filp", sizeof(struct file),
-				offsetof(struct file, f_freeptr),
-				SLAB_HWCACHE_ALIGN | SLAB_PANIC | SLAB_ACCOUNT);
+	struct kmem_cache_args args = {
+		.use_freeptr_offset = true,
+		.freeptr_offset = offsetof(struct file, f_freeptr),
+	};
+
+	filp_cachep = kmem_cache_create("filp", sizeof(struct file), &args,
+				SLAB_HWCACHE_ALIGN | SLAB_PANIC |
+				SLAB_ACCOUNT | SLAB_TYPESAFE_BY_RCU);
 	percpu_counter_init(&nr_files, 0, GFP_KERNEL);
 }