linux-kernel - [RFC PATCH 14/15] turn inode

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Message-ID: <20260110040217.1927971-15-viro@zeniv.linux.org.uk>
Date: Sat, 10 Jan 2026 04:02:16 +0000
From: Al Viro <viro@...iv.linux.org.uk>
To: linux-mm@...ck.org
Cc: Vlastimil Babka <vbabka@...e.cz>,
	Harry Yoo <harry.yoo@...cle.com>,
	linux-fsdevel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Christian Brauner <brauner@...nel.org>,
	Jan Kara <jack@...e.cz>,
	Mateusz Guzik <mguzik@...il.com>,
	linux-kernel@...r.kernel.org
Subject: [RFC PATCH 14/15] turn inode_cachep static-duration

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 fs/inode.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index 521383223d8a..7c212696ba67 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -23,6 +23,7 @@
 #include <linux/rw_hint.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
+#include <linux/slab-static.h>
 #include <trace/events/writeback.h>
 #define CREATE_TRACE_POINTS
 #include <trace/events/timestamp.h>
@@ -76,7 +77,8 @@ EXPORT_SYMBOL(empty_aops);
 static DEFINE_PER_CPU(unsigned long, nr_inodes);
 static DEFINE_PER_CPU(unsigned long, nr_unused);
 
-static struct kmem_cache *inode_cachep __ro_after_init;
+static struct kmem_cache_opaque inode_cache;
+#define inode_cachep to_kmem_cache(&inode_cache)
 
 static long get_nr_inodes(void)
 {
@@ -2564,7 +2566,7 @@ void __init inode_init_early(void)
 void __init inode_init(void)
 {
 	/* inode slab cache */
-	inode_cachep = kmem_cache_create("inode_cache",
+	kmem_cache_setup(inode_cachep, "inode_cache",
 					 sizeof(struct inode),
 					 0,
 					 (SLAB_RECLAIM_ACCOUNT|SLAB_PANIC|
-- 
2.47.3