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
next prev 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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