From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B31AB1553A3 for ; Mon, 12 May 2025 00:51:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747011064; cv=none; b=kIKPDxtce34xQah7mmYykzUykcWfuDM+GGtFEc2QR1P33oVybQk7Anx86CDFyqED5kbdy+c10n4dq6sfTdN7+ydODnHNan4smMyhwPER1u6knZgeJn5JWRVo06yXu8N9lra3Ha/KDUkbB2EU2qQXq8x7UnK+9uzQz2+iejR8jrU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747011064; c=relaxed/simple; bh=n+6XrsZfXltXfFPQm9IYhYjRw2r773hNfUHz8BN5KSg=; h=Date:To:From:Subject:Message-Id; b=jSK1tFE/zhs7JooSwLFKHoVik/uLaxfoFn6S0CaLqpGTl+zgiC5dq2C541MZWwoMORRFVDmG5wDKnIX0BahatZWvEE2W78SZCoEQKEGt2KZoj5Uq1plCgn93RWzE+9hw5AwHlNJq1I5KUn5swRfDf1qopuAIWrfy6629swgUP/s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=eG70vi0l; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="eG70vi0l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85FC3C4CEE4; Mon, 12 May 2025 00:51:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1747011064; bh=n+6XrsZfXltXfFPQm9IYhYjRw2r773hNfUHz8BN5KSg=; h=Date:To:From:Subject:From; b=eG70vi0lH+eACfHj3fONEfHilSCqoRSKsx6f4d6XMJGdpayZ+r90eITSMFOrTFwff f71G6kOKwv6A8zJnhSctucB85seXcDrMAObkz7+Bt3KDMJbns658oVxrDJ8Z83Ezs9 /DnJNmBvreaCI8pn8eAdbq7V+E3022kQKveGw1wM= Date: Sun, 11 May 2025 17:51:04 -0700 To: mm-commits@vger.kernel.org,will@kernel.org,tglx@linutronix.de,ryan.roberts@arm.com,peterz@infradead.org,paul.walmsley@sifive.com,palmer@dabbelt.com,npiggin@gmail.com,mingo@redhat.com,mark.rutland@arm.com,maddy@linux.ibm.com,hca@linux.ibm.com,gerald.schaefer@linux.ibm.com,dave.hansen@linux.intel.com,catalin.marinas@arm.com,ardb@kernel.org,anshuman.khandual@arm.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] mm-ptdump-split-note_page-into-level-specific-callbacks.patch removed from -mm tree Message-Id: <20250512005104.85FC3C4CEE4@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/ptdump: split note_page() into level specific callbacks has been removed from the -mm tree. Its filename was mm-ptdump-split-note_page-into-level-specific-callbacks.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Anshuman Khandual Subject: mm/ptdump: split note_page() into level specific callbacks Date: Mon, 7 Apr 2025 11:01:11 +0530 Patch series "mm/ptdump: Drop assumption that pxd_val() is u64", v2. Last argument passed down in note_page() is u64 assuming pxd_val() returned value (all page table levels) is 64 bit - which might not be the case going ahead when D128 page tables is enabled on arm64 platform. Besides pxd_val() is very platform specific and its type should not be assumed in generic MM. A similar problem exists for effective_prot(), although it is restricted to x86 platform. This series splits note_page() and effective_prot() into individual page table level specific callbacks which accepts corresponding pxd_t page table entry as an argument instead and later on all subscribing platforms could derive pxd_val() from the table entries as required and proceed as before. Define ptdesc_t type which describes the basic page table descriptor layout on arm64 platform. Subsequently all level specific pxxval_t descriptors are derived from ptdesc_t thus establishing a common original format, which can also be appropriate for page table entries, masks and protection values etc which are used at all page table levels. This patch (of 3): Last argument passed down in note_page() is u64 assuming pxd_val() returned value (all page table levels) is 64 bit - which might not be the case going ahead when D128 page tables is enabled on arm64 platform. Besides pxd_val() is very platform specific and its type should not be assumed in generic MM. Split note_page() into individual page table level specific callbacks which accepts corresponding pxd_t argument instead and then subscribing platforms just derive pxd_val() from the entries as required and proceed as earlier. Also add a note_page_flush() callback for flushing the last page table page that was being handled earlier via level = -1. Link: https://lkml.kernel.org/r/20250407053113.746295-1-anshuman.khandual@arm.com Link: https://lkml.kernel.org/r/20250407053113.746295-2-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Cc: Catalin Marinas Cc: Will Deacon Cc: Madhavan Srinivasan Cc: Nicholas Piggin Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Gerald Schaefer Cc: Heiko Carstens Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Ard Biesheuvel Cc: Dave Hansen Cc: Mark Rutland Cc: Ryan Roberts Signed-off-by: Andrew Morton --- arch/arm64/include/asm/ptdump.h | 16 ++++++++-- arch/arm64/mm/ptdump.c | 48 ++++++++++++++++++++++++++++-- arch/powerpc/mm/ptdump/ptdump.c | 46 +++++++++++++++++++++++++++- arch/riscv/mm/ptdump.c | 46 +++++++++++++++++++++++++++- arch/s390/mm/dump_pagetables.c | 46 +++++++++++++++++++++++++++- arch/x86/mm/dump_pagetables.c | 39 +++++++++++++++++++++++- include/linux/ptdump.h | 9 +++-- mm/ptdump.c | 42 ++++++++++++++++++++------ 8 files changed, 267 insertions(+), 25 deletions(-) --- a/arch/arm64/include/asm/ptdump.h~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/arm64/include/asm/ptdump.h @@ -59,7 +59,13 @@ struct ptdump_pg_state { void ptdump_walk(struct seq_file *s, struct ptdump_info *info); void note_page(struct ptdump_state *pt_st, unsigned long addr, int level, - u64 val); + pteval_t val); +void note_page_pte(struct ptdump_state *st, unsigned long addr, pte_t pte); +void note_page_pmd(struct ptdump_state *st, unsigned long addr, pmd_t pmd); +void note_page_pud(struct ptdump_state *st, unsigned long addr, pud_t pud); +void note_page_p4d(struct ptdump_state *st, unsigned long addr, p4d_t p4d); +void note_page_pgd(struct ptdump_state *st, unsigned long addr, pgd_t pgd); +void note_page_flush(struct ptdump_state *st); #ifdef CONFIG_PTDUMP_DEBUGFS #define EFI_RUNTIME_MAP_END DEFAULT_MAP_WINDOW_64 void __init ptdump_debugfs_register(struct ptdump_info *info, const char *name); @@ -69,7 +75,13 @@ static inline void ptdump_debugfs_regist #endif /* CONFIG_PTDUMP_DEBUGFS */ #else static inline void note_page(struct ptdump_state *pt_st, unsigned long addr, - int level, u64 val) { } + int level, pteval_t val) { } +static inline void note_page_pte(struct ptdump_state *st, unsigned long addr, pte_t pte) { } +static inline void note_page_pmd(struct ptdump_state *st, unsigned long addr, pmd_t pmd) { } +static inline void note_page_pud(struct ptdump_state *st, unsigned long addr, pud_t pud) { } +static inline void note_page_p4d(struct ptdump_state *st, unsigned long addr, p4d_t p4d) { } +static inline void note_page_pgd(struct ptdump_state *st, unsigned long addr, pgd_t pgd) { } +static inline void note_page_flush(struct ptdump_state *st) { } #endif /* CONFIG_PTDUMP */ #endif /* __ASM_PTDUMP_H */ --- a/arch/arm64/mm/ptdump.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/arm64/mm/ptdump.c @@ -189,7 +189,7 @@ static void note_prot_wx(struct ptdump_p } void note_page(struct ptdump_state *pt_st, unsigned long addr, int level, - u64 val) + pteval_t val) { struct ptdump_pg_state *st = container_of(pt_st, struct ptdump_pg_state, ptdump); struct ptdump_pg_level *pg_level = st->pg_level; @@ -251,6 +251,38 @@ void note_page(struct ptdump_state *pt_s } +void note_page_pte(struct ptdump_state *pt_st, unsigned long addr, pte_t pte) +{ + note_page(pt_st, addr, 4, pte_val(pte)); +} + +void note_page_pmd(struct ptdump_state *pt_st, unsigned long addr, pmd_t pmd) +{ + note_page(pt_st, addr, 3, pmd_val(pmd)); +} + +void note_page_pud(struct ptdump_state *pt_st, unsigned long addr, pud_t pud) +{ + note_page(pt_st, addr, 2, pud_val(pud)); +} + +void note_page_p4d(struct ptdump_state *pt_st, unsigned long addr, p4d_t p4d) +{ + note_page(pt_st, addr, 1, p4d_val(p4d)); +} + +void note_page_pgd(struct ptdump_state *pt_st, unsigned long addr, pgd_t pgd) +{ + note_page(pt_st, addr, 0, pgd_val(pgd)); +} + +void note_page_flush(struct ptdump_state *pt_st) +{ + pte_t pte_zero = {0}; + + note_page(pt_st, 0, -1, pte_val(pte_zero)); +} + void ptdump_walk(struct seq_file *s, struct ptdump_info *info) { unsigned long end = ~0UL; @@ -266,7 +298,12 @@ void ptdump_walk(struct seq_file *s, str .pg_level = &kernel_pg_levels[0], .level = -1, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]){ {info->base_addr, end}, {0, 0} @@ -303,7 +340,12 @@ bool ptdump_check_wx(void) .level = -1, .check_wx = true, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]) { {_PAGE_OFFSET(vabits_actual), ~0UL}, {0, 0} --- a/arch/powerpc/mm/ptdump/ptdump.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/powerpc/mm/ptdump/ptdump.c @@ -298,6 +298,38 @@ static void populate_markers(void) #endif } +static void note_page_pte(struct ptdump_state *pt_st, unsigned long addr, pte_t pte) +{ + note_page(pt_st, addr, 4, pte_val(pte)); +} + +static void note_page_pmd(struct ptdump_state *pt_st, unsigned long addr, pmd_t pmd) +{ + note_page(pt_st, addr, 3, pmd_val(pmd)); +} + +static void note_page_pud(struct ptdump_state *pt_st, unsigned long addr, pud_t pud) +{ + note_page(pt_st, addr, 2, pud_val(pud)); +} + +static void note_page_p4d(struct ptdump_state *pt_st, unsigned long addr, p4d_t p4d) +{ + note_page(pt_st, addr, 1, p4d_val(p4d)); +} + +static void note_page_pgd(struct ptdump_state *pt_st, unsigned long addr, pgd_t pgd) +{ + note_page(pt_st, addr, 0, pgd_val(pgd)); +} + +static void note_page_flush(struct ptdump_state *pt_st) +{ + pte_t pte_zero = {0}; + + note_page(pt_st, 0, -1, pte_val(pte_zero)); +} + static int ptdump_show(struct seq_file *m, void *v) { struct pg_state st = { @@ -305,7 +337,12 @@ static int ptdump_show(struct seq_file * .marker = address_markers, .level = -1, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = ptdump_range, } }; @@ -338,7 +375,12 @@ bool ptdump_check_wx(void) .level = -1, .check_wx = true, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = ptdump_range, } }; --- a/arch/riscv/mm/ptdump.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/riscv/mm/ptdump.c @@ -318,6 +318,38 @@ static void note_page(struct ptdump_stat } } +static void note_page_pte(struct ptdump_state *pt_st, unsigned long addr, pte_t pte) +{ + note_page(pt_st, addr, 4, pte_val(pte)); +} + +static void note_page_pmd(struct ptdump_state *pt_st, unsigned long addr, pmd_t pmd) +{ + note_page(pt_st, addr, 3, pmd_val(pmd)); +} + +static void note_page_pud(struct ptdump_state *pt_st, unsigned long addr, pud_t pud) +{ + note_page(pt_st, addr, 2, pud_val(pud)); +} + +static void note_page_p4d(struct ptdump_state *pt_st, unsigned long addr, p4d_t p4d) +{ + note_page(pt_st, addr, 1, p4d_val(p4d)); +} + +static void note_page_pgd(struct ptdump_state *pt_st, unsigned long addr, pgd_t pgd) +{ + note_page(pt_st, addr, 0, pgd_val(pgd)); +} + +static void note_page_flush(struct ptdump_state *pt_st) +{ + pte_t pte_zero = {0}; + + note_page(pt_st, 0, -1, pte_val(pte_zero)); +} + static void ptdump_walk(struct seq_file *s, struct ptd_mm_info *pinfo) { struct pg_state st = { @@ -325,7 +357,12 @@ static void ptdump_walk(struct seq_file .marker = pinfo->markers, .level = -1, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]) { {pinfo->base_addr, pinfo->end}, {0, 0} @@ -347,7 +384,12 @@ bool ptdump_check_wx(void) .level = -1, .check_wx = true, .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]) { {KERN_VIRT_START, ULONG_MAX}, {0, 0} --- a/arch/s390/mm/dump_pagetables.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/s390/mm/dump_pagetables.c @@ -147,11 +147,48 @@ static void note_page(struct ptdump_stat } } +static void note_page_pte(struct ptdump_state *pt_st, unsigned long addr, pte_t pte) +{ + note_page(pt_st, addr, 4, pte_val(pte)); +} + +static void note_page_pmd(struct ptdump_state *pt_st, unsigned long addr, pmd_t pmd) +{ + note_page(pt_st, addr, 3, pmd_val(pmd)); +} + +static void note_page_pud(struct ptdump_state *pt_st, unsigned long addr, pud_t pud) +{ + note_page(pt_st, addr, 2, pud_val(pud)); +} + +static void note_page_p4d(struct ptdump_state *pt_st, unsigned long addr, p4d_t p4d) +{ + note_page(pt_st, addr, 1, p4d_val(p4d)); +} + +static void note_page_pgd(struct ptdump_state *pt_st, unsigned long addr, pgd_t pgd) +{ + note_page(pt_st, addr, 0, pgd_val(pgd)); +} + +static void note_page_flush(struct ptdump_state *pt_st) +{ + pte_t pte_zero = {0}; + + note_page(pt_st, 0, -1, pte_val(pte_zero)); +} + bool ptdump_check_wx(void) { struct pg_state st = { .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]) { {.start = 0, .end = max_addr}, {.start = 0, .end = 0}, @@ -190,7 +227,12 @@ static int ptdump_show(struct seq_file * { struct pg_state st = { .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .range = (struct ptdump_range[]) { {.start = 0, .end = max_addr}, {.start = 0, .end = 0}, --- a/arch/x86/mm/dump_pagetables.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/arch/x86/mm/dump_pagetables.c @@ -362,6 +362,38 @@ static void note_page(struct ptdump_stat } } +static void note_page_pte(struct ptdump_state *pt_st, unsigned long addr, pte_t pte) +{ + note_page(pt_st, addr, 4, pte_val(pte)); +} + +static void note_page_pmd(struct ptdump_state *pt_st, unsigned long addr, pmd_t pmd) +{ + note_page(pt_st, addr, 3, pmd_val(pmd)); +} + +static void note_page_pud(struct ptdump_state *pt_st, unsigned long addr, pud_t pud) +{ + note_page(pt_st, addr, 2, pud_val(pud)); +} + +static void note_page_p4d(struct ptdump_state *pt_st, unsigned long addr, p4d_t p4d) +{ + note_page(pt_st, addr, 1, p4d_val(p4d)); +} + +static void note_page_pgd(struct ptdump_state *pt_st, unsigned long addr, pgd_t pgd) +{ + note_page(pt_st, addr, 0, pgd_val(pgd)); +} + +static void note_page_flush(struct ptdump_state *pt_st) +{ + pte_t pte_zero = {0}; + + note_page(pt_st, 0, -1, pte_val(pte_zero)); +} + bool ptdump_walk_pgd_level_core(struct seq_file *m, struct mm_struct *mm, pgd_t *pgd, bool checkwx, bool dmesg) @@ -378,7 +410,12 @@ bool ptdump_walk_pgd_level_core(struct s struct pg_state st = { .ptdump = { - .note_page = note_page, + .note_page_pte = note_page_pte, + .note_page_pmd = note_page_pmd, + .note_page_pud = note_page_pud, + .note_page_p4d = note_page_p4d, + .note_page_pgd = note_page_pgd, + .note_page_flush = note_page_flush, .effective_prot = effective_prot, .range = ptdump_ranges }, --- a/include/linux/ptdump.h~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/include/linux/ptdump.h @@ -11,9 +11,12 @@ struct ptdump_range { }; struct ptdump_state { - /* level is 0:PGD to 4:PTE, or -1 if unknown */ - void (*note_page)(struct ptdump_state *st, unsigned long addr, - int level, u64 val); + void (*note_page_pte)(struct ptdump_state *st, unsigned long addr, pte_t pte); + void (*note_page_pmd)(struct ptdump_state *st, unsigned long addr, pmd_t pmd); + void (*note_page_pud)(struct ptdump_state *st, unsigned long addr, pud_t pud); + void (*note_page_p4d)(struct ptdump_state *st, unsigned long addr, p4d_t p4d); + void (*note_page_pgd)(struct ptdump_state *st, unsigned long addr, pgd_t pgd); + void (*note_page_flush)(struct ptdump_state *st); void (*effective_prot)(struct ptdump_state *st, int level, u64 val); const struct ptdump_range *range; }; --- a/mm/ptdump.c~mm-ptdump-split-note_page-into-level-specific-callbacks +++ a/mm/ptdump.c @@ -18,7 +18,7 @@ static inline int note_kasan_page_table( { struct ptdump_state *st = walk->private; - st->note_page(st, addr, 4, pte_val(kasan_early_shadow_pte[0])); + st->note_page_pte(st, addr, kasan_early_shadow_pte[0]); walk->action = ACTION_CONTINUE; @@ -42,7 +42,7 @@ static int ptdump_pgd_entry(pgd_t *pgd, st->effective_prot(st, 0, pgd_val(val)); if (pgd_leaf(val)) { - st->note_page(st, addr, 0, pgd_val(val)); + st->note_page_pgd(st, addr, val); walk->action = ACTION_CONTINUE; } @@ -65,7 +65,7 @@ static int ptdump_p4d_entry(p4d_t *p4d, st->effective_prot(st, 1, p4d_val(val)); if (p4d_leaf(val)) { - st->note_page(st, addr, 1, p4d_val(val)); + st->note_page_p4d(st, addr, val); walk->action = ACTION_CONTINUE; } @@ -88,7 +88,7 @@ static int ptdump_pud_entry(pud_t *pud, st->effective_prot(st, 2, pud_val(val)); if (pud_leaf(val)) { - st->note_page(st, addr, 2, pud_val(val)); + st->note_page_pud(st, addr, val); walk->action = ACTION_CONTINUE; } @@ -109,7 +109,7 @@ static int ptdump_pmd_entry(pmd_t *pmd, if (st->effective_prot) st->effective_prot(st, 3, pmd_val(val)); if (pmd_leaf(val)) { - st->note_page(st, addr, 3, pmd_val(val)); + st->note_page_pmd(st, addr, val); walk->action = ACTION_CONTINUE; } @@ -125,7 +125,7 @@ static int ptdump_pte_entry(pte_t *pte, if (st->effective_prot) st->effective_prot(st, 4, pte_val(val)); - st->note_page(st, addr, 4, pte_val(val)); + st->note_page_pte(st, addr, val); return 0; } @@ -134,9 +134,31 @@ static int ptdump_hole(unsigned long add int depth, struct mm_walk *walk) { struct ptdump_state *st = walk->private; - - st->note_page(st, addr, depth, 0); - + pte_t pte_zero = {0}; + pmd_t pmd_zero = {0}; + pud_t pud_zero = {0}; + p4d_t p4d_zero = {0}; + pgd_t pgd_zero = {0}; + + switch (depth) { + case 4: + st->note_page_pte(st, addr, pte_zero); + break; + case 3: + st->note_page_pmd(st, addr, pmd_zero); + break; + case 2: + st->note_page_pud(st, addr, pud_zero); + break; + case 1: + st->note_page_p4d(st, addr, p4d_zero); + break; + case 0: + st->note_page_pgd(st, addr, pgd_zero); + break; + default: + break; + } return 0; } @@ -162,7 +184,7 @@ void ptdump_walk_pgd(struct ptdump_state mmap_write_unlock(mm); /* Flush out the last page */ - st->note_page(st, 0, -1, 0); + st->note_page_flush(st); } static int check_wx_show(struct seq_file *m, void *v) _ Patches currently in -mm which might be from anshuman.khandual@arm.com are