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From: "Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Michael Ellerman <mpe@ellerman.id.au>,
	Nicholas Piggin <npiggin@gmail.com>,
	Madhavan Srinivasan <maddy@linux.ibm.com>,
	Christophe Leroy <christophe.leroy@csgroup.eu>,
	Hari Bathini <hbathini@linux.ibm.com>,
	"Aneesh Kumar K . V" <aneesh.kumar@kernel.org>,
	Donet Tom <donettom@linux.vnet.ibm.com>,
	Pavithra Prakash <pavrampu@linux.vnet.ibm.com>,
	Nirjhar Roy <nirjhar@linux.ibm.com>,
	LKML <linux-kernel@vger.kernel.org>,
	kasan-dev@googlegroups.com,
	"Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Subject: [RFC v2 07/13] book3s64/hash: Refactor hash__kernel_map_pages() function
Date: Thu, 19 Sep 2024 08:26:05 +0530	[thread overview]
Message-ID: <0ced93c215459479ae70dd9bbe00daa595f9aff0.1726571179.git.ritesh.list@gmail.com> (raw)
In-Reply-To: <cover.1726571179.git.ritesh.list@gmail.com>

This refactors hash__kernel_map_pages() function to call
hash_debug_pagealloc_map_pages(). This will come useful when we will add
kfence support.

No functionality changes in this patch.

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
---
 arch/powerpc/mm/book3s64/hash_utils.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c
index 030c120d1399..da9b089c8e8b 100644
--- a/arch/powerpc/mm/book3s64/hash_utils.c
+++ b/arch/powerpc/mm/book3s64/hash_utils.c
@@ -349,7 +349,8 @@ static inline void hash_debug_pagealloc_add_slot(phys_addr_t paddr, int slot)
 		linear_map_hash_slots[paddr >> PAGE_SHIFT] = slot | 0x80;
 }
 
-int hash__kernel_map_pages(struct page *page, int numpages, int enable)
+static int hash_debug_pagealloc_map_pages(struct page *page, int numpages,
+					  int enable)
 {
 	unsigned long flags, vaddr, lmi;
 	int i;
@@ -368,6 +369,12 @@ int hash__kernel_map_pages(struct page *page, int numpages, int enable)
 	local_irq_restore(flags);
 	return 0;
 }
+
+int hash__kernel_map_pages(struct page *page, int numpages, int enable)
+{
+	return hash_debug_pagealloc_map_pages(page, numpages, enable);
+}
+
 #else /* CONFIG_DEBUG_PAGEALLOC */
 int hash__kernel_map_pages(struct page *page, int numpages,
 					 int enable)
-- 
2.46.0



  parent reply	other threads:[~2024-09-19  2:57 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-19  2:55 [RFC v2 00/13] powerpc/kfence: Improve kfence support Ritesh Harjani (IBM)
2024-09-19  2:55 ` [RFC v2 01/13] mm/kfence: Add a new kunit test test_use_after_free_read_nofault() Ritesh Harjani (IBM)
2024-10-03  5:06   ` Ritesh Harjani
2024-09-19  2:56 ` [RFC v2 02/13] powerpc: mm: Fix kfence page fault reporting Ritesh Harjani (IBM)
2024-09-19  5:12   ` Christophe Leroy
2024-09-19  5:47     ` Ritesh Harjani
2024-09-19  2:56 ` [RFC v2 03/13] book3s64/hash: Remove kfence support temporarily Ritesh Harjani (IBM)
2024-09-19  5:20   ` Christophe Leroy
2024-09-19  6:23     ` Ritesh Harjani
2024-09-19  2:56 ` [RFC v2 04/13] book3s64/hash: Refactor kernel linear map related calls Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 05/13] book3s64/hash: Add hash_debug_pagealloc_add_slot() function Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 06/13] book3s64/hash: Add hash_debug_pagealloc_alloc_slots() function Ritesh Harjani (IBM)
2024-09-19  2:56 ` Ritesh Harjani (IBM) [this message]
2024-09-19  2:56 ` [RFC v2 08/13] book3s64/hash: Make kernel_map_linear_page() generic Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 09/13] book3s64/hash: Disable debug_pagealloc if it requires more memory Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 10/13] book3s64/hash: Add kfence functionality Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 11/13] book3s64/radix: Refactoring common kfence related functions Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 12/13] book3s64/hash: Disable kfence if not early init Ritesh Harjani (IBM)
2024-09-19  2:56 ` [RFC v2 13/13] book3s64/hash: Early detect debug_pagealloc size requirement Ritesh Harjani (IBM)

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