From: Al Viro <viro@zeniv.linux.org.uk>
To: linux-mm@kvack.org
Cc: Vlastimil Babka <vbabka@suse.cz>,
Harry Yoo <harry.yoo@oracle.com>,
linux-fsdevel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Christian Brauner <brauner@kernel.org>, Jan Kara <jack@suse.cz>,
Mateusz Guzik <mguzik@gmail.com>,
linux-kernel@vger.kernel.org
Subject: [RFC PATCH 11/15] turn mm_cachep static-duration
Date: Sat, 10 Jan 2026 04:02:13 +0000 [thread overview]
Message-ID: <20260110040217.1927971-12-viro@zeniv.linux.org.uk> (raw)
In-Reply-To: <20260110040217.1927971-1-viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
kernel/fork.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/kernel/fork.c b/kernel/fork.c
index d5b7e4d51596..f83ca2f5826f 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -478,7 +478,8 @@ struct kmem_cache_opaque files_cache;
struct kmem_cache *fs_cachep;
/* SLAB cache for mm_struct structures (tsk->mm) */
-static struct kmem_cache *mm_cachep;
+static struct kmem_cache_opaque mm_cache;
+#define mm_cachep to_kmem_cache(&mm_cache)
static void account_kernel_stack(struct task_struct *tsk, int account)
{
@@ -3011,7 +3012,7 @@ void __init mm_cache_init(void)
*/
mm_size = sizeof(struct mm_struct) + cpumask_size() + mm_cid_size();
- mm_cachep = kmem_cache_create_usercopy("mm_struct",
+ kmem_cache_setup_usercopy(mm_cachep, "mm_struct",
mm_size, ARCH_MIN_MMSTRUCT_ALIGN,
SLAB_HWCACHE_ALIGN|SLAB_PANIC|SLAB_ACCOUNT,
offsetof(struct mm_struct, saved_auxv),
--
2.47.3
next prev parent reply other threads:[~2026-01-10 4:01 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-10 4:02 [RFC PATCH 00/15] kmem_cache instances with static storage duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 01/15] static kmem_cache instances for core caches Al Viro
2026-01-10 5:40 ` Matthew Wilcox
2026-01-10 6:23 ` Al Viro
2026-01-10 4:02 ` [RFC PATCH 02/15] allow static-duration kmem_cache in modules Al Viro
2026-01-10 4:02 ` [RFC PATCH 03/15] make mnt_cache static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 04/15] turn thread_cache static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 05/15] turn signal_cache static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 06/15] turn bh_cachep static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 07/15] turn dentry_cache static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 08/15] turn files_cachep static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 09/15] make filp and bfilp caches static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 10/15] turn sighand_cache static-duration Al Viro
2026-01-10 4:02 ` Al Viro [this message]
2026-01-10 4:02 ` [RFC PATCH 12/15] turn task_struct_cachep static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 13/15] turn fs_cachep static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 14/15] turn inode_cachep static-duration Al Viro
2026-01-10 4:02 ` [RFC PATCH 15/15] turn ufs_inode_cache static-duration Al Viro
2026-01-10 5:33 ` [RFC PATCH 00/15] kmem_cache instances with static storage duration Linus Torvalds
2026-01-10 6:16 ` Al Viro
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