From: Matthew Wilcox <willy@infradead.org>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-mm@kvack.org, 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: Re: [RFC PATCH 01/15] static kmem_cache instances for core caches
Date: Sat, 10 Jan 2026 05:40:34 +0000 [thread overview]
Message-ID: <aWHmUsxQDGHOdflq@casper.infradead.org> (raw)
In-Reply-To: <20260110040217.1927971-2-viro@zeniv.linux.org.uk>
On Sat, Jan 10, 2026 at 04:02:03AM +0000, Al Viro wrote:
> +++ b/Kbuild
> @@ -45,13 +45,24 @@ kernel/sched/rq-offsets.s: $(offsets-file)
> $(rq-offsets-file): kernel/sched/rq-offsets.s FORCE
> $(call filechk,offsets,__RQ_OFFSETS_H__)
>
> +# generate kmem_cache_size.h
> +
> +kmem_cache_size-file := include/generated/kmem_cache_size.h
> +
> +targets += mm/kmem_cache_size.s
> +
> +mm/kmem_cache_size.s: $(rq-offsets-file)
> +
> +$(kmem_cache_size-file): mm/kmem_cache_size.s FORCE
> + $(call filechk,offsets,__KMEM_CACHE_SIZE_H__)
> +
> # Check for missing system calls
>
> quiet_cmd_syscalls = CALL $<
> cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags)
>
> PHONY += missing-syscalls
> -missing-syscalls: scripts/checksyscalls.sh $(rq-offsets-file)
> +missing-syscalls: scripts/checksyscalls.sh $(kmem_cache_size-file)
> $(call cmd,syscalls)
Did you mean to _replace_ rq-offsets-file rather than add
kmem_cache_size-file ?
(I also wonder if we want to just do slab or if we want to make this
mm-offsets.h and maybe put other things in it later, but I'm having
trouble thinking of other things we might want to generate)
next prev parent reply other threads:[~2026-01-10 5:40 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 [this message]
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 ` [RFC PATCH 11/15] turn mm_cachep static-duration Al Viro
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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