From: Mike Rapoport <rppt@kernel.org>
To: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>,
linux-mm@kvack.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org,
linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev,
linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org,
linux-openrisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org,
linux-sh@vger.kernel.org, sparclinux@vger.kernel.org,
linux-um@lists.infradead.org, xen-devel@lists.xenproject.org,
kvm@vger.kernel.org, Hugh Dickins <hughd@google.com>
Subject: Re: [PATCH v4 07/34] mm: Convert ptlock_alloc() to use ptdescs
Date: Wed, 14 Jun 2023 16:51:38 +0300 [thread overview]
Message-ID: <20230614135138.GF52412@kernel.org> (raw)
In-Reply-To: <20230612210423.18611-8-vishal.moola@gmail.com>
On Mon, Jun 12, 2023 at 02:03:56PM -0700, Vishal Moola (Oracle) wrote:
> This removes some direct accesses to struct page, working towards
> splitting out struct ptdesc from struct page.
>
> Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
> ---
> include/linux/mm.h | 6 +++---
> mm/memory.c | 4 ++--
> 2 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index 088b7664f897..e6f1be2a405e 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -2825,7 +2825,7 @@ static inline void pagetable_clear(void *x)
> #if USE_SPLIT_PTE_PTLOCKS
> #if ALLOC_SPLIT_PTLOCKS
> void __init ptlock_cache_init(void);
> -extern bool ptlock_alloc(struct page *page);
> +bool ptlock_alloc(struct ptdesc *ptdesc);
> extern void ptlock_free(struct page *page);
>
> static inline spinlock_t *ptlock_ptr(struct page *page)
> @@ -2837,7 +2837,7 @@ static inline void ptlock_cache_init(void)
> {
> }
>
> -static inline bool ptlock_alloc(struct page *page)
> +static inline bool ptlock_alloc(struct ptdesc *ptdesc)
> {
> return true;
> }
> @@ -2867,7 +2867,7 @@ static inline bool ptlock_init(struct page *page)
> * slab code uses page->slab_cache, which share storage with page->ptl.
> */
> VM_BUG_ON_PAGE(*(unsigned long *)&page->ptl, page);
> - if (!ptlock_alloc(page))
> + if (!ptlock_alloc(page_ptdesc(page)))
> return false;
> spin_lock_init(ptlock_ptr(page));
> return true;
> diff --git a/mm/memory.c b/mm/memory.c
> index 80ce9dda2779..ba9579117686 100644
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -5934,14 +5934,14 @@ void __init ptlock_cache_init(void)
> SLAB_PANIC, NULL);
> }
>
> -bool ptlock_alloc(struct page *page)
> +bool ptlock_alloc(struct ptdesc *ptdesc)
> {
> spinlock_t *ptl;
>
> ptl = kmem_cache_alloc(page_ptl_cachep, GFP_KERNEL);
> if (!ptl)
> return false;
> - page->ptl = ptl;
> + ptdesc->ptl = ptl;
> return true;
> }
>
> --
> 2.40.1
>
>
--
Sincerely yours,
Mike.
next prev parent reply other threads:[~2023-06-14 13:52 UTC|newest]
Thread overview: 81+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 21:03 [PATCH v4 00/34] Split ptdesc from struct page Vishal Moola (Oracle)
2023-06-12 21:03 ` [PATCH v4 01/34] mm: Add PAGE_TYPE_OP folio functions Vishal Moola (Oracle)
2023-06-14 13:02 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 02/34] s390: Use _pt_s390_gaddr for gmap address tracking Vishal Moola (Oracle)
2023-06-14 13:14 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 03/34] s390: Use pt_frag_refcount for pagetables Vishal Moola (Oracle)
2023-06-14 13:21 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 04/34] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-06-14 13:34 ` Mike Rapoport
2023-06-15 7:57 ` Hugh Dickins
2023-06-16 20:38 ` Matthew Wilcox
2023-06-16 21:28 ` Vishal Moola
2023-06-16 12:38 ` Jason Gunthorpe
2023-06-20 20:01 ` Vishal Moola
2023-06-20 23:05 ` Jason Gunthorpe
2023-06-20 23:10 ` Vishal Moola
2023-06-12 21:03 ` [PATCH v4 05/34] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-06-14 13:48 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 06/34] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Vishal Moola (Oracle)
2023-06-14 13:51 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 07/34] mm: Convert ptlock_alloc() to use ptdescs Vishal Moola (Oracle)
2023-06-14 13:51 ` Mike Rapoport [this message]
2023-06-12 21:03 ` [PATCH v4 08/34] mm: Convert ptlock_ptr() " Vishal Moola (Oracle)
2023-06-14 13:52 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 09/34] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-06-14 13:52 ` Mike Rapoport
2023-06-12 21:03 ` [PATCH v4 10/34] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-06-14 13:57 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 11/34] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-06-14 13:59 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 12/34] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-06-14 13:59 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 13/34] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-06-14 14:10 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 14/34] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-06-14 14:19 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 15/34] x86: " Vishal Moola (Oracle)
2023-06-14 14:27 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 16/34] s390: Convert various gmap " Vishal Moola (Oracle)
2023-06-14 14:28 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 17/34] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-06-14 14:46 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 18/34] mm: Remove page table members from struct page Vishal Moola (Oracle)
2023-06-14 14:53 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 19/34] pgalloc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-06-14 14:59 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 20/34] arm: " Vishal Moola (Oracle)
2023-06-14 15:03 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 21/34] arm64: " Vishal Moola (Oracle)
2023-06-14 15:05 ` Mike Rapoport
2023-06-14 16:41 ` Catalin Marinas
2023-06-12 21:04 ` [PATCH v4 22/34] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-06-14 15:07 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 23/34] hexagon: " Vishal Moola (Oracle)
2023-06-14 15:07 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 24/34] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-06-14 15:09 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 25/34] m68k: " Vishal Moola (Oracle)
2023-06-13 7:28 ` Geert Uytterhoeven
2023-06-14 15:12 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 26/34] mips: " Vishal Moola (Oracle)
2023-06-14 15:16 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 27/34] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-06-13 22:16 ` Dinh Nguyen
2023-06-14 9:30 ` Geert Uytterhoeven
2023-06-14 21:23 ` Dinh Nguyen
2023-06-14 15:16 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 28/34] openrisc: " Vishal Moola (Oracle)
2023-06-14 15:17 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 29/34] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-06-14 15:18 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 30/34] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-06-14 15:19 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 31/34] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-06-14 15:20 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 32/34] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-06-14 15:20 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 33/34] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-06-14 15:21 ` Mike Rapoport
2023-06-12 21:04 ` [PATCH v4 34/34] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)
2023-06-14 15:23 ` Mike Rapoport
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230614135138.GF52412@kernel.org \
--to=rppt@kernel.org \
--cc=akpm@linux-foundation.org \
--cc=hughd@google.com \
--cc=kvm@vger.kernel.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-csky@vger.kernel.org \
--cc=linux-hexagon@vger.kernel.org \
--cc=linux-m68k@lists.linux-m68k.org \
--cc=linux-mips@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-openrisc@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux-s390@vger.kernel.org \
--cc=linux-sh@vger.kernel.org \
--cc=linux-um@lists.infradead.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=loongarch@lists.linux.dev \
--cc=sparclinux@vger.kernel.org \
--cc=vishal.moola@gmail.com \
--cc=willy@infradead.org \
--cc=xen-devel@lists.xenproject.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).