From: "Vishal Moola (Oracle)" <vishal.moola@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Matthew Wilcox <willy@infradead.org>
Cc: 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,
"Vishal Moola (Oracle)" <vishal.moola@gmail.com>
Subject: [PATCH 06/33] mm: Convert ptlock_alloc() to use ptdescs
Date: Mon, 17 Apr 2023 13:50:21 -0700 [thread overview]
Message-ID: <20230417205048.15870-7-vishal.moola@gmail.com> (raw)
In-Reply-To: <20230417205048.15870-1-vishal.moola@gmail.com>
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>
---
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 069187e84e35..17dc6e37ea03 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2786,7 +2786,7 @@ static inline void ptdesc_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)
@@ -2798,7 +2798,7 @@ 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;
}
@@ -2828,7 +2828,7 @@ 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 d4d7df041b6f..37d408ac1b8d 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -5926,14 +5926,14 @@ 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;
}
--
2.39.2
next prev parent reply other threads:[~2023-04-17 20:53 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-17 20:50 [PATCH 00/33] Split ptdesc from struct page Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 01/33] s390: Use _pt_s390_gaddr for gmap address tracking Vishal Moola (Oracle)
2023-04-18 15:45 ` David Hildenbrand
2023-04-18 21:33 ` Vishal Moola
2023-04-19 7:54 ` David Hildenbrand
2023-04-20 23:32 ` Vishal Moola
2023-04-17 20:50 ` [PATCH 02/33] s390: Use pt_frag_refcount for pagetables Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 03/33] pgtable: Create struct ptdesc Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 04/33] mm: add utility functions for ptdesc Vishal Moola (Oracle)
2023-04-18 1:22 ` kernel test robot
2023-04-19 13:33 ` [PATCH 4/33] " Vernon Yang
2023-04-19 20:29 ` Vishal Moola
2023-04-17 20:50 ` [PATCH 05/33] mm: Convert pmd_pgtable_page() to pmd_ptdesc() Vishal Moola (Oracle)
2023-04-17 20:50 ` Vishal Moola (Oracle) [this message]
2023-04-17 20:50 ` [PATCH 07/33] mm: Convert ptlock_ptr() to use ptdescs Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 08/33] mm: Convert pmd_ptlock_init() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 09/33] mm: Convert ptlock_init() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 10/33] mm: Convert pmd_ptlock_free() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 11/33] mm: Convert ptlock_free() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 12/33] mm: Create ptdesc equivalents for pgtable_{pte,pmd}_page_{ctor,dtor} Vishal Moola (Oracle)
2023-04-18 2:13 ` kernel test robot
2023-04-17 20:50 ` [PATCH 13/33] powerpc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 14/33] x86: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 15/33] s390: Convert various gmap " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 16/33] s390: Convert various pgalloc " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 17/33] mm: Remove page table members from struct page Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 18/33] pgalloc: Convert various functions to use ptdescs Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 19/33] arm: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 20/33] arm64: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 21/33] csky: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 22/33] hexagon: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 23/33] loongarch: Convert various functions " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 24/33] m68k: " Vishal Moola (Oracle)
2023-04-17 22:18 ` kernel test robot
2023-04-17 20:50 ` [PATCH 25/33] mips: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 26/33] nios2: Convert __pte_free_tlb() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 27/33] openrisc: " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 28/33] riscv: Convert alloc_{pmd, pte}_late() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 29/33] sh: Convert pte_free_tlb() " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 30/33] sparc64: Convert various functions " Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 31/33] sparc: Convert pgtable_pte_page_{ctor, dtor}() to ptdesc equivalents Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 32/33] um: Convert {pmd, pte}_free_tlb() to use ptdescs Vishal Moola (Oracle)
2023-04-17 20:50 ` [PATCH 33/33] mm: Remove pgtable_{pmd, pte}_page_{ctor, dtor}() wrappers Vishal Moola (Oracle)
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