From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au> Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v1 04/30] powerpc/vdso: Remove get_page() in vdso_pagelist initialization Date: Sun, 27 Sep 2020 09:16:21 +0000 (UTC) [thread overview] Message-ID: <9d14540bd10832b6c9519d74fb5728fdc4974b36.1601197618.git.christophe.leroy@csgroup.eu> (raw) In-Reply-To: <cover.1601197618.git.christophe.leroy@csgroup.eu> Partly copied from commit 16fb1a9bec61 ("arm64: vdso: clean up vdso_pagelist initialization"). No need to get_page() the vdso text/data - these are part of the kernel image. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/kernel/vdso.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 6d106fcafb9e..dfaa4be258d2 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -748,7 +748,7 @@ static int __init vdso_init(void) BUG_ON(vdso32_pagelist == NULL); for (i = 0; i < vdso32_pages; i++) { struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE); - get_page(pg); + vdso32_pagelist[i] = pg; } vdso32_pagelist[i++] = virt_to_page(vdso_data); @@ -761,15 +761,13 @@ static int __init vdso_init(void) BUG_ON(vdso64_pagelist == NULL); for (i = 0; i < vdso64_pages; i++) { struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE); - get_page(pg); + vdso64_pagelist[i] = pg; } vdso64_pagelist[i++] = virt_to_page(vdso_data); vdso64_pagelist[i] = NULL; #endif /* CONFIG_PPC64 */ - get_page(virt_to_page(vdso_data)); - smp_wmb(); vdso_ready = 1; -- 2.25.0
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu> To: Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 04/30] powerpc/vdso: Remove get_page() in vdso_pagelist initialization Date: Sun, 27 Sep 2020 09:16:21 +0000 (UTC) [thread overview] Message-ID: <9d14540bd10832b6c9519d74fb5728fdc4974b36.1601197618.git.christophe.leroy@csgroup.eu> (raw) In-Reply-To: <cover.1601197618.git.christophe.leroy@csgroup.eu> Partly copied from commit 16fb1a9bec61 ("arm64: vdso: clean up vdso_pagelist initialization"). No need to get_page() the vdso text/data - these are part of the kernel image. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> --- arch/powerpc/kernel/vdso.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c index 6d106fcafb9e..dfaa4be258d2 100644 --- a/arch/powerpc/kernel/vdso.c +++ b/arch/powerpc/kernel/vdso.c @@ -748,7 +748,7 @@ static int __init vdso_init(void) BUG_ON(vdso32_pagelist == NULL); for (i = 0; i < vdso32_pages; i++) { struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE); - get_page(pg); + vdso32_pagelist[i] = pg; } vdso32_pagelist[i++] = virt_to_page(vdso_data); @@ -761,15 +761,13 @@ static int __init vdso_init(void) BUG_ON(vdso64_pagelist == NULL); for (i = 0; i < vdso64_pages; i++) { struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE); - get_page(pg); + vdso64_pagelist[i] = pg; } vdso64_pagelist[i++] = virt_to_page(vdso_data); vdso64_pagelist[i] = NULL; #endif /* CONFIG_PPC64 */ - get_page(virt_to_page(vdso_data)); - smp_wmb(); vdso_ready = 1; -- 2.25.0
next prev parent reply other threads:[~2020-09-27 9:17 UTC|newest] Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-09-27 9:16 [PATCH v1 00/30] Modernise VDSO setup Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 01/30] powerpc/vdso: Stripped VDSO is not needed, don't build it Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 02/30] powerpc/vdso: Add missing includes and clean vdso_setup_syscall_map() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 03/30] powerpc/vdso: Rename syscall_map_32/64 to simplify vdso_setup_syscall_map() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy [this message] 2020-09-27 9:16 ` [PATCH v1 04/30] powerpc/vdso: Remove get_page() in vdso_pagelist initialization Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 05/30] powerpc/vdso: Remove NULL termination element in vdso_pagelist Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 06/30] powerpc/vdso: Refactor 32 bits and 64 bits pages setup Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 07/30] powerpc/vdso: Remove unnecessary ifdefs in vdso_pagelist initialization Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 08/30] powerpc/vdso: Use VDSO size in arch_setup_additional_pages() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 09/30] powerpc/vdso: Simplify arch_setup_additional_pages() exit Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 10/30] powerpc/vdso: Move to _install_special_mapping() and remove arch_vma_name() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 11/30] powerpc/vdso: Provide vdso_remap() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 12/30] powerpc/vdso: Replace vdso_base by vdso Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 13/30] powerpc/vdso: Move vdso datapage up front Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 14/30] powerpc/vdso: Simplify __get_datapage() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 15/30] powerpc/vdso: Remove unused \tmp param in __get_datapage() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 16/30] powerpc/vdso: Retrieve sigtramp offsets at buildtime Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 17/30] powerpc/vdso: Use builtin symbols to locate fixup section Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 18/30] powerpc/vdso: Merge __kernel_sync_dicache_p5() into __kernel_sync_dicache() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 19/30] powerpc/vdso: Remove vdso32_pages and vdso64_pages Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 20/30] powerpc/vdso: Remove __kernel_datapage_offset Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 21/30] powerpc/vdso: Remove runtime generated sigtramp offsets Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 22/30] powerpc/vdso: Remove vdso_patches[] and associated functions Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 23/30] powerpc/vdso: Remove unused text member in struct lib32/64_elfinfo Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 24/30] powerpc/vdso: Remove symbol section information " Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 25/30] powerpc/vdso: Remove lib32_elfinfo and lib64_elfinfo Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 26/30] powerpc/vdso: Remove vdso_setup() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 27/30] powerpc/vdso: Remove vdso_ready Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 28/30] powerpc/vdso: Remove DBG() Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 29/30] powerpc/vdso: Remove VDSO32_LBASE and VDSO64_LBASE Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-09-27 9:16 ` [PATCH v1 30/30] powerpc/vdso: Cleanup vdso.h Christophe Leroy 2020-09-27 9:16 ` Christophe Leroy 2020-12-10 11:29 ` [PATCH v1 00/30] Modernise VDSO setup Michael Ellerman 2020-12-10 11:29 ` Michael Ellerman
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