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 3DBF43C099 for ; Wed, 25 Sep 2024 10:05:18 +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=1727258718; cv=none; b=qTZu5WEeZZUP10yIqVnQ2AHmw1pRnuZiBXoH9NYECy6PfCIprWRCUmhEwQcdzZBrCdH8vXO6A9+UnLGB8Sx7zUrbbne7/YbUDx7lDTonYdpeOmxXqce96ktJhR4T2BcpzyDrP1DeDTdAY9M6YWYC12BkSdYR9ZLLkPtNzFOdlyU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727258718; c=relaxed/simple; bh=6+FJZ8HAT1H3BPJAjX3sIJs6XVzEcHHd9T0ENlpclEs=; h=Date:To:From:Subject:Message-Id; b=B6GpodxomGQ32277tYkojQGHmEM7qdiMcx3wiyDfQ268Yp8tMXkoOm/FaM2F7mAgSTa/w3a1+xSNa+b/N+LDUp2N75SVZQk9YnJkWbt4cJO0xtcbuwivxAmmYB1jKsUkP88cnyXFR7Wf7+tPodqmJIjhfpV+QJ9QwXo600oGVbk= 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=VfnWQXZw; 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="VfnWQXZw" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DFC29C4CEC3; Wed, 25 Sep 2024 10:05:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1727258718; bh=6+FJZ8HAT1H3BPJAjX3sIJs6XVzEcHHd9T0ENlpclEs=; h=Date:To:From:Subject:From; b=VfnWQXZwiFlaXooxA+svqyrZ6sTUteIsDsUgctJa3QL9r4OW+uGGEdNtt1+DkIDJe 0rYsUMS8XdHTA4BnGy3Csc+S/qyIvT+AkX5C+IoBGl3VD54kjtZbvW7C5JaAe/8EZo M3+RGocIlWbDyDxy+mRInrCh9juXD/st1rtIC9p4= Date: Wed, 25 Sep 2024 03:05:17 -0700 To: mm-commits@vger.kernel.org,willy@infradead.org,wangkefeng.wang@huawei.com,peterz@infradead.org,oleg@redhat.com,mhiramat@kernel.org,sunnanyong@huawei.com,akpm@linux-foundation.org From: Andrew Morton Subject: + mm-move-mm-flags-to-mm_typesh.patch added to mm-unstable branch Message-Id: <20240925100517.DFC29C4CEC3@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The patch titled Subject: mm: move mm flags to mm_types.h has been added to the -mm mm-unstable branch. Its filename is mm-move-mm-flags-to-mm_typesh.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-move-mm-flags-to-mm_typesh.patch This patch will later appear in the mm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Nanyong Sun Subject: mm: move mm flags to mm_types.h Date: Wed, 11 Sep 2024 15:44:33 +0800 The types of mm flags are now far beyond the core dump related features. This patch moves mm flags from linux/sched/coredump.h to linux/mm_types.h. The linux/sched/coredump.h has include the mm_types.h, so the C files related to coredump does not need to change head file inclusion. In addition, the inclusion of sched/coredump.h now can be deleted from the C files that irrelevant to core dump. Link: https://lkml.kernel.org/r/20240911074433.6830-1-sunnanyong@huawei.com Signed-off-by: Nanyong Sun Cc: Kefeng Wang Cc: Masami Hiramatsu Cc: Oleg Nesterov Cc: Peter Zijlstra Cc: Matthew Wilcox Signed-off-by: Andrew Morton --- include/linux/huge_mm.h | 1 include/linux/khugepaged.h | 2 include/linux/ksm.h | 1 include/linux/mm_types.h | 81 ++++++++++++++++++++++++++++++ include/linux/oom.h | 1 include/linux/sched/coredump.h | 82 ------------------------------- kernel/events/uprobes.c | 1 kernel/fork.c | 1 mm/huge_memory.c | 1 mm/khugepaged.c | 1 mm/ksm.c | 1 mm/memory.c | 1 mm/oom_kill.c | 1 13 files changed, 81 insertions(+), 94 deletions(-) --- a/include/linux/huge_mm.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/huge_mm.h @@ -2,7 +2,6 @@ #ifndef _LINUX_HUGE_MM_H #define _LINUX_HUGE_MM_H -#include #include #include /* only for vma_is_dax() */ --- a/include/linux/khugepaged.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/khugepaged.h @@ -2,8 +2,6 @@ #ifndef _LINUX_KHUGEPAGED_H #define _LINUX_KHUGEPAGED_H -#include /* MMF_VM_HUGEPAGE */ - extern unsigned int khugepaged_max_ptes_none __read_mostly; #ifdef CONFIG_TRANSPARENT_HUGEPAGE extern struct attribute_group khugepaged_attr_group; --- a/include/linux/ksm.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/ksm.h @@ -13,7 +13,6 @@ #include #include #include -#include #ifdef CONFIG_KSM int ksm_madvise(struct vm_area_struct *vma, unsigned long start, --- a/include/linux/mm_types.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/mm_types.h @@ -1499,4 +1499,85 @@ enum { /* See also internal only FOLL flags in mm/internal.h */ }; +/* mm flags */ + +/* core dumpable occupy bit0 and bit1 */ +#define MMF_DUMPABLE_BITS 2 +#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1) +/* coredump filter bits */ +#define MMF_DUMP_ANON_PRIVATE 2 +#define MMF_DUMP_ANON_SHARED 3 +#define MMF_DUMP_MAPPED_PRIVATE 4 +#define MMF_DUMP_MAPPED_SHARED 5 +#define MMF_DUMP_ELF_HEADERS 6 +#define MMF_DUMP_HUGETLB_PRIVATE 7 +#define MMF_DUMP_HUGETLB_SHARED 8 +#define MMF_DUMP_DAX_PRIVATE 9 +#define MMF_DUMP_DAX_SHARED 10 + +#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS +#define MMF_DUMP_FILTER_BITS 9 +#define MMF_DUMP_FILTER_MASK \ + (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) +#define MMF_DUMP_FILTER_DEFAULT \ + ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\ + (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF) + +#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS +# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS) +#else +# define MMF_DUMP_MASK_DEFAULT_ELF 0 +#endif + /* leave room for more dump flags */ +#define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */ +#define MMF_VM_HUGEPAGE 17 /* set when mm is available for khugepaged */ + +/* + * This one-shot flag is dropped due to necessity of changing exe once again + * on NFS restore + */ +//#define MMF_EXE_FILE_CHANGED 18 /* see prctl_set_mm_exe_file() */ + +#define MMF_HAS_UPROBES 19 /* has uprobes */ +#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */ +#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */ +#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */ +#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */ +#define MMF_DISABLE_THP 24 /* disable THP for all VMAs */ +#define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP) +#define MMF_OOM_REAP_QUEUED 25 /* mm was queued for oom_reaper */ +#define MMF_MULTIPROCESS 26 /* mm is shared between processes */ +/* + * MMF_HAS_PINNED: Whether this mm has pinned any pages. This can be either + * replaced in the future by mm.pinned_vm when it becomes stable, or grow into + * a counter on its own. We're aggresive on this bit for now: even if the + * pinned pages were unpinned later on, we'll still keep this bit set for the + * lifecycle of this mm, just for simplicity. + */ +#define MMF_HAS_PINNED 27 /* FOLL_PIN has run, never cleared */ + +#define MMF_HAS_MDWE 28 +#define MMF_HAS_MDWE_MASK (1 << MMF_HAS_MDWE) + + +#define MMF_HAS_MDWE_NO_INHERIT 29 + +#define MMF_VM_MERGE_ANY 30 +#define MMF_VM_MERGE_ANY_MASK (1 << MMF_VM_MERGE_ANY) + +#define MMF_TOPDOWN 31 /* mm searches top down by default */ +#define MMF_TOPDOWN_MASK (1 << MMF_TOPDOWN) + +#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\ + MMF_DISABLE_THP_MASK | MMF_HAS_MDWE_MASK |\ + MMF_VM_MERGE_ANY_MASK | MMF_TOPDOWN_MASK) + +static inline unsigned long mmf_init_flags(unsigned long flags) +{ + if (flags & (1UL << MMF_HAS_MDWE_NO_INHERIT)) + flags &= ~((1UL << MMF_HAS_MDWE) | + (1UL << MMF_HAS_MDWE_NO_INHERIT)); + return flags & MMF_INIT_MASK; +} + #endif /* _LINUX_MM_TYPES_H */ --- a/include/linux/oom.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/oom.h @@ -7,7 +7,6 @@ #include #include #include -#include /* MMF_* */ #include /* VM_FAULT* */ struct zonelist; --- a/include/linux/sched/coredump.h~mm-move-mm-flags-to-mm_typesh +++ a/include/linux/sched/coredump.h @@ -8,12 +8,6 @@ #define SUID_DUMP_USER 1 /* Dump as user of process */ #define SUID_DUMP_ROOT 2 /* Dump as root */ -/* mm flags */ - -/* for SUID_DUMP_* above */ -#define MMF_DUMPABLE_BITS 2 -#define MMF_DUMPABLE_MASK ((1 << MMF_DUMPABLE_BITS) - 1) - extern void set_dumpable(struct mm_struct *mm, int value); /* * This returns the actual value of the suid_dumpable flag. For things @@ -31,80 +25,4 @@ static inline int get_dumpable(struct mm return __get_dumpable(mm->flags); } -/* coredump filter bits */ -#define MMF_DUMP_ANON_PRIVATE 2 -#define MMF_DUMP_ANON_SHARED 3 -#define MMF_DUMP_MAPPED_PRIVATE 4 -#define MMF_DUMP_MAPPED_SHARED 5 -#define MMF_DUMP_ELF_HEADERS 6 -#define MMF_DUMP_HUGETLB_PRIVATE 7 -#define MMF_DUMP_HUGETLB_SHARED 8 -#define MMF_DUMP_DAX_PRIVATE 9 -#define MMF_DUMP_DAX_SHARED 10 - -#define MMF_DUMP_FILTER_SHIFT MMF_DUMPABLE_BITS -#define MMF_DUMP_FILTER_BITS 9 -#define MMF_DUMP_FILTER_MASK \ - (((1 << MMF_DUMP_FILTER_BITS) - 1) << MMF_DUMP_FILTER_SHIFT) -#define MMF_DUMP_FILTER_DEFAULT \ - ((1 << MMF_DUMP_ANON_PRIVATE) | (1 << MMF_DUMP_ANON_SHARED) |\ - (1 << MMF_DUMP_HUGETLB_PRIVATE) | MMF_DUMP_MASK_DEFAULT_ELF) - -#ifdef CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS -# define MMF_DUMP_MASK_DEFAULT_ELF (1 << MMF_DUMP_ELF_HEADERS) -#else -# define MMF_DUMP_MASK_DEFAULT_ELF 0 -#endif - /* leave room for more dump flags */ -#define MMF_VM_MERGEABLE 16 /* KSM may merge identical pages */ -#define MMF_VM_HUGEPAGE 17 /* set when mm is available for - khugepaged */ -/* - * This one-shot flag is dropped due to necessity of changing exe once again - * on NFS restore - */ -//#define MMF_EXE_FILE_CHANGED 18 /* see prctl_set_mm_exe_file() */ - -#define MMF_HAS_UPROBES 19 /* has uprobes */ -#define MMF_RECALC_UPROBES 20 /* MMF_HAS_UPROBES can be wrong */ -#define MMF_OOM_SKIP 21 /* mm is of no interest for the OOM killer */ -#define MMF_UNSTABLE 22 /* mm is unstable for copy_from_user */ -#define MMF_HUGE_ZERO_PAGE 23 /* mm has ever used the global huge zero page */ -#define MMF_DISABLE_THP 24 /* disable THP for all VMAs */ -#define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP) -#define MMF_OOM_REAP_QUEUED 25 /* mm was queued for oom_reaper */ -#define MMF_MULTIPROCESS 26 /* mm is shared between processes */ -/* - * MMF_HAS_PINNED: Whether this mm has pinned any pages. This can be either - * replaced in the future by mm.pinned_vm when it becomes stable, or grow into - * a counter on its own. We're aggresive on this bit for now: even if the - * pinned pages were unpinned later on, we'll still keep this bit set for the - * lifecycle of this mm, just for simplicity. - */ -#define MMF_HAS_PINNED 27 /* FOLL_PIN has run, never cleared */ - -#define MMF_HAS_MDWE 28 -#define MMF_HAS_MDWE_MASK (1 << MMF_HAS_MDWE) - - -#define MMF_HAS_MDWE_NO_INHERIT 29 - -#define MMF_VM_MERGE_ANY 30 -#define MMF_VM_MERGE_ANY_MASK (1 << MMF_VM_MERGE_ANY) - -#define MMF_TOPDOWN 31 /* mm searches top down by default */ -#define MMF_TOPDOWN_MASK (1 << MMF_TOPDOWN) - -#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\ - MMF_DISABLE_THP_MASK | MMF_HAS_MDWE_MASK |\ - MMF_VM_MERGE_ANY_MASK | MMF_TOPDOWN_MASK) - -static inline unsigned long mmf_init_flags(unsigned long flags) -{ - if (flags & (1UL << MMF_HAS_MDWE_NO_INHERIT)) - flags &= ~((1UL << MMF_HAS_MDWE) | - (1UL << MMF_HAS_MDWE_NO_INHERIT)); - return flags & MMF_INIT_MASK; -} - #endif /* _LINUX_SCHED_COREDUMP_H */ --- a/kernel/events/uprobes.c~mm-move-mm-flags-to-mm_typesh +++ a/kernel/events/uprobes.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include /* anon_vma_prepare */ #include --- a/kernel/fork.c~mm-move-mm-flags-to-mm_typesh +++ a/kernel/fork.c @@ -16,7 +16,6 @@ #include #include #include -#include #include #include #include --- a/mm/huge_memory.c~mm-move-mm-flags-to-mm_typesh +++ a/mm/huge_memory.c @@ -8,7 +8,6 @@ #include #include #include -#include #include #include #include --- a/mm/khugepaged.c~mm-move-mm-flags-to-mm_typesh +++ a/mm/khugepaged.c @@ -4,7 +4,6 @@ #include #include #include -#include #include #include #include --- a/mm/ksm.c~mm-move-mm-flags-to-mm_typesh +++ a/mm/ksm.c @@ -20,7 +20,6 @@ #include #include #include -#include #include #include #include --- a/mm/memory.c~mm-move-mm-flags-to-mm_typesh +++ a/mm/memory.c @@ -44,7 +44,6 @@ #include #include #include -#include #include #include #include --- a/mm/oom_kill.c~mm-move-mm-flags-to-mm_typesh +++ a/mm/oom_kill.c @@ -24,7 +24,6 @@ #include #include #include -#include #include #include #include _ Patches currently in -mm which might be from sunnanyong@huawei.com are mm-move-mm-flags-to-mm_typesh.patch