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From: Liam Howlett <liam.howlett@oracle.com>
To: "maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Song Liu <songliubraving@fb.com>,
	Davidlohr Bueso <dave@stgolabs.net>,
	"Paul E . McKenney" <paulmck@kernel.org>,
	Matthew Wilcox <willy@infradead.org>,
	Laurent Dufour <ldufour@linux.ibm.com>,
	David Rientjes <rientjes@google.com>,
	Axel Rasmussen <axelrasmussen@google.com>,
	Suren Baghdasaryan <surenb@google.com>,
	Vlastimil Babka <vbabka@suse.cz>, Rik van Riel <riel@surriel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Michel Lespinasse <walken.cr@gmail.com>,
	Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH 46/94] mm/mmap: Move mmap_region() below do_munmap()
Date: Wed, 28 Apr 2021 15:36:11 +0000	[thread overview]
Message-ID: <20210428153542.2814175-47-Liam.Howlett@Oracle.com> (raw)
In-Reply-To: <20210428153542.2814175-1-Liam.Howlett@Oracle.com>

Relocation of code for the next commit.  There should be no changes
here.

Signed-off-by: Liam R. Howlett <Liam.Howlett@Oracle.com>
---
 mm/mmap.c | 472 +++++++++++++++++++++++++++---------------------------
 1 file changed, 236 insertions(+), 236 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 8ce36776fe43..0106b5accd7c 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1695,242 +1695,6 @@ static inline int accountable_mapping(struct file *file, vm_flags_t vm_flags)
 	return (vm_flags & (VM_NORESERVE | VM_SHARED | VM_WRITE)) == VM_WRITE;
 }
 
-unsigned long mmap_region(struct file *file, unsigned long addr,
-		unsigned long len, vm_flags_t vm_flags, unsigned long pgoff,
-		struct list_head *uf)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma = NULL;
-	struct vm_area_struct *prev, *next;
-	pgoff_t pglen = len >> PAGE_SHIFT;
-	unsigned long charged = 0;
-	unsigned long end = addr + len;
-	unsigned long merge_start = addr, merge_end = end;
-	pgoff_t vm_pgoff;
-	int error;
-	MA_STATE(mas, &mm->mm_mt, addr, end - 1);
-
-	/* Check against address space limit. */
-	if (!may_expand_vm(mm, vm_flags, len >> PAGE_SHIFT)) {
-		unsigned long nr_pages;
-
-		/*
-		 * MAP_FIXED may remove pages of mappings that intersects with
-		 * requested mapping. Account for the pages it would unmap.
-		 */
-		nr_pages = count_vma_pages_range(mm, addr, end);
-
-		if (!may_expand_vm(mm, vm_flags,
-					(len >> PAGE_SHIFT) - nr_pages))
-			return -ENOMEM;
-	}
-
-	/* Unmap any existing mapping in the area */
-	if (do_munmap(mm, addr, len, uf))
-		return -ENOMEM;
-
-	/*
-	 * Private writable mapping: check memory availability
-	 */
-	if (accountable_mapping(file, vm_flags)) {
-		charged = len >> PAGE_SHIFT;
-		if (security_vm_enough_memory_mm(mm, charged))
-			return -ENOMEM;
-		vm_flags |= VM_ACCOUNT;
-	}
-
-
-	if (vm_flags & VM_SPECIAL) {
-		prev = mas_prev(&mas, 0);
-		goto cannot_expand;
-	}
-
-	/* Attempt to expand an old mapping */
-
-	/* Check next */
-	next = mas_next(&mas, ULONG_MAX);
-	if (next && next->vm_start == end && vma_policy(next) &&
-	    can_vma_merge_before(next, vm_flags, NULL, file, pgoff+pglen,
-				 NULL_VM_UFFD_CTX)) {
-		merge_end = next->vm_end;
-		vma = next;
-		vm_pgoff = next->vm_pgoff - pglen;
-	}
-
-	/* Check prev */
-	prev = mas_prev(&mas, 0);
-	if (prev && prev->vm_end == addr && !vma_policy(prev) &&
-	    can_vma_merge_after(prev, vm_flags, NULL, file, pgoff,
-				NULL_VM_UFFD_CTX)) {
-		merge_start = prev->vm_start;
-		vma = prev;
-		vm_pgoff = prev->vm_pgoff;
-	}
-
-
-	/* Actually expand, if possible */
-	if (vma &&
-	    !vma_expand(&mas, vma, merge_start, merge_end, vm_pgoff, next)) {
-		khugepaged_enter_vma_merge(prev, vm_flags);
-		goto expanded;
-	}
-
-	mas_set_range(&mas, addr, end - 1);
-cannot_expand:
-	/*
-	 * Determine the object being mapped and call the appropriate
-	 * specific mapper. the address has already been validated, but
-	 * not unmapped, but the maps are removed from the list.
-	 */
-	vma = vm_area_alloc(mm);
-	if (!vma) {
-		error = -ENOMEM;
-		goto unacct_error;
-	}
-
-	vma->vm_start = addr;
-	vma->vm_end = end;
-	vma->vm_flags = vm_flags;
-	vma->vm_page_prot = vm_get_page_prot(vm_flags);
-	vma->vm_pgoff = pgoff;
-
-	if (file) {
-		if (vm_flags & VM_DENYWRITE) {
-			error = deny_write_access(file);
-			if (error)
-				goto free_vma;
-		}
-		if (vm_flags & VM_SHARED) {
-			error = mapping_map_writable(file->f_mapping);
-			if (error)
-				goto allow_write_and_free_vma;
-		}
-
-		/* ->mmap() can change vma->vm_file, but must guarantee that
-		 * vma_link() below can deny write-access if VM_DENYWRITE is set
-		 * and map writably if VM_SHARED is set. This usually means the
-		 * new file must not have been exposed to user-space, yet.
-		 */
-		vma->vm_file = get_file(file);
-		error = call_mmap(file, vma);
-		if (error)
-			goto unmap_and_free_vma;
-
-		/* Can addr have changed??
-		 *
-		 * Answer: Yes, several device drivers can do it in their
-		 *         f_op->mmap method. -DaveM
-		 */
-		WARN_ON_ONCE(addr != vma->vm_start);
-
-		addr = vma->vm_start;
-
-		/* If vm_flags changed after call_mmap(), we should try merge vma again
-		 * as we may succeed this time.
-		 */
-		if (unlikely(vm_flags != vma->vm_flags && prev &&
-			     prev->vm_end == addr && !vma_policy(prev) &&
-			     can_vma_merge_after(prev, vm_flags, NULL, file,
-						 pgoff, NULL_VM_UFFD_CTX))) {
-			merge_start = prev->vm_start;
-			vm_pgoff = prev->vm_pgoff;
-			if (!vma_expand(&mas, prev, merge_start, merge_end,
-					vm_pgoff, next)) {
-				/* ->mmap() can change vma->vm_file and fput the original file. So
-				 * fput the vma->vm_file here or we would add an extra fput for file
-				 * and cause general protection fault ultimately.
-				 */
-				fput(vma->vm_file);
-				vm_area_free(vma);
-				vma = prev;
-				/* Update vm_flags and possible addr to pick up the change. We don't
-				 * warn here if addr changed as the vma is not linked by vma_link().
-				 */
-				addr = vma->vm_start;
-				vm_flags = vma->vm_flags;
-				goto unmap_writable;
-			}
-		}
-
-		vm_flags = vma->vm_flags;
-	} else if (vm_flags & VM_SHARED) {
-		error = shmem_zero_setup(vma);
-		if (error)
-			goto free_vma;
-	} else {
-		vma_set_anonymous(vma);
-	}
-
-	/* Allow architectures to sanity-check the vm_flags */
-	if (!arch_validate_flags(vma->vm_flags)) {
-		error = -EINVAL;
-		if (file)
-			goto unmap_and_free_vma;
-		else
-			goto free_vma;
-	}
-
-	mas.index = mas.last = addr;
-	mas_walk(&mas);
-	vma_mas_link(mm, vma, &mas, prev);
-	/* Once vma denies write, undo our temporary denial count */
-	if (file) {
-unmap_writable:
-		if (vm_flags & VM_SHARED)
-			mapping_unmap_writable(file->f_mapping);
-		if (vm_flags & VM_DENYWRITE)
-			allow_write_access(file);
-	}
-	file = vma->vm_file;
-expanded:
-	perf_event_mmap(vma);
-
-	vm_stat_account(mm, vm_flags, len >> PAGE_SHIFT);
-	if (vm_flags & VM_LOCKED) {
-		if ((vm_flags & VM_SPECIAL) || vma_is_dax(vma) ||
-		    is_vm_hugetlb_page(vma) ||
-		    vma == get_gate_vma(current->mm))
-			vma->vm_flags &= VM_LOCKED_CLEAR_MASK;
-		else
-			mm->locked_vm += (len >> PAGE_SHIFT);
-	}
-
-	if (file)
-		uprobe_mmap(vma);
-
-	/*
-	 * New (or expanded) vma always get soft dirty status.
-	 * Otherwise user-space soft-dirty page tracker won't
-	 * be able to distinguish situation when vma area unmapped,
-	 * then new mapped in-place (which must be aimed as
-	 * a completely new data area).
-	 */
-	vma->vm_flags |= VM_SOFTDIRTY;
-
-	vma_set_page_prot(vma);
-
-	return addr;
-
-unmap_and_free_vma:
-	fput(vma->vm_file);
-	vma->vm_file = NULL;
-
-	/* Undo any partial mapping done by a device driver. */
-	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
-	charged = 0;
-	if (vm_flags & VM_SHARED)
-		mapping_unmap_writable(file->f_mapping);
-allow_write_and_free_vma:
-	if (vm_flags & VM_DENYWRITE)
-		allow_write_access(file);
-free_vma:
-	vm_area_free(vma);
-unacct_error:
-	if (charged)
-		vm_unacct_memory(charged);
-	return error;
-}
-
 /* unmapped_area() Find an area between the low_limit and the high_limit with
  * the correct alignment and offset, all from @info. Note: current->mm is used
  * for the search.
@@ -2788,6 +2552,242 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len,
 	return __do_munmap(mm, start, len, uf, false);
 }
 
+unsigned long mmap_region(struct file *file, unsigned long addr,
+		unsigned long len, vm_flags_t vm_flags, unsigned long pgoff,
+		struct list_head *uf)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma = NULL;
+	struct vm_area_struct *prev, *next;
+	pgoff_t pglen = len >> PAGE_SHIFT;
+	unsigned long charged = 0;
+	unsigned long end = addr + len;
+	unsigned long merge_start = addr, merge_end = end;
+	pgoff_t vm_pgoff;
+	int error;
+	MA_STATE(mas, &mm->mm_mt, addr, end - 1);
+
+	/* Check against address space limit. */
+	if (!may_expand_vm(mm, vm_flags, len >> PAGE_SHIFT)) {
+		unsigned long nr_pages;
+
+		/*
+		 * MAP_FIXED may remove pages of mappings that intersects with
+		 * requested mapping. Account for the pages it would unmap.
+		 */
+		nr_pages = count_vma_pages_range(mm, addr, end);
+
+		if (!may_expand_vm(mm, vm_flags,
+					(len >> PAGE_SHIFT) - nr_pages))
+			return -ENOMEM;
+	}
+
+	/* Unmap any existing mapping in the area */
+	if (do_munmap(mm, addr, len, uf))
+		return -ENOMEM;
+
+	/*
+	 * Private writable mapping: check memory availability
+	 */
+	if (accountable_mapping(file, vm_flags)) {
+		charged = len >> PAGE_SHIFT;
+		if (security_vm_enough_memory_mm(mm, charged))
+			return -ENOMEM;
+		vm_flags |= VM_ACCOUNT;
+	}
+
+
+	if (vm_flags & VM_SPECIAL) {
+		prev = mas_prev(&mas, 0);
+		goto cannot_expand;
+	}
+
+	/* Attempt to expand an old mapping */
+
+	/* Check next */
+	next = mas_next(&mas, ULONG_MAX);
+	if (next && next->vm_start == end && vma_policy(next) &&
+	    can_vma_merge_before(next, vm_flags, NULL, file, pgoff+pglen,
+				 NULL_VM_UFFD_CTX)) {
+		merge_end = next->vm_end;
+		vma = next;
+		vm_pgoff = next->vm_pgoff - pglen;
+	}
+
+	/* Check prev */
+	prev = mas_prev(&mas, 0);
+	if (prev && prev->vm_end == addr && !vma_policy(prev) &&
+	    can_vma_merge_after(prev, vm_flags, NULL, file, pgoff,
+				NULL_VM_UFFD_CTX)) {
+		merge_start = prev->vm_start;
+		vma = prev;
+		vm_pgoff = prev->vm_pgoff;
+	}
+
+
+	/* Actually expand, if possible */
+	if (vma &&
+	    !vma_expand(&mas, vma, merge_start, merge_end, vm_pgoff, next)) {
+		khugepaged_enter_vma_merge(prev, vm_flags);
+		goto expanded;
+	}
+
+	mas_set_range(&mas, addr, end - 1);
+cannot_expand:
+	/*
+	 * Determine the object being mapped and call the appropriate
+	 * specific mapper. the address has already been validated, but
+	 * not unmapped, but the maps are removed from the list.
+	 */
+	vma = vm_area_alloc(mm);
+	if (!vma) {
+		error = -ENOMEM;
+		goto unacct_error;
+	}
+
+	vma->vm_start = addr;
+	vma->vm_end = end;
+	vma->vm_flags = vm_flags;
+	vma->vm_page_prot = vm_get_page_prot(vm_flags);
+	vma->vm_pgoff = pgoff;
+
+	if (file) {
+		if (vm_flags & VM_DENYWRITE) {
+			error = deny_write_access(file);
+			if (error)
+				goto free_vma;
+		}
+		if (vm_flags & VM_SHARED) {
+			error = mapping_map_writable(file->f_mapping);
+			if (error)
+				goto allow_write_and_free_vma;
+		}
+
+		/* ->mmap() can change vma->vm_file, but must guarantee that
+		 * vma_link() below can deny write-access if VM_DENYWRITE is set
+		 * and map writably if VM_SHARED is set. This usually means the
+		 * new file must not have been exposed to user-space, yet.
+		 */
+		vma->vm_file = get_file(file);
+		error = call_mmap(file, vma);
+		if (error)
+			goto unmap_and_free_vma;
+
+		/* Can addr have changed??
+		 *
+		 * Answer: Yes, several device drivers can do it in their
+		 *         f_op->mmap method. -DaveM
+		 */
+		WARN_ON_ONCE(addr != vma->vm_start);
+
+		addr = vma->vm_start;
+
+		/* If vm_flags changed after call_mmap(), we should try merge vma again
+		 * as we may succeed this time.
+		 */
+		if (unlikely(vm_flags != vma->vm_flags && prev &&
+			     prev->vm_end == addr && !vma_policy(prev) &&
+			     can_vma_merge_after(prev, vm_flags, NULL, file,
+						 pgoff, NULL_VM_UFFD_CTX))) {
+			merge_start = prev->vm_start;
+			vm_pgoff = prev->vm_pgoff;
+			if (!vma_expand(&mas, prev, merge_start, merge_end,
+					vm_pgoff, next)) {
+				/* ->mmap() can change vma->vm_file and fput the original file. So
+				 * fput the vma->vm_file here or we would add an extra fput for file
+				 * and cause general protection fault ultimately.
+				 */
+				fput(vma->vm_file);
+				vm_area_free(vma);
+				vma = prev;
+				/* Update vm_flags and possible addr to pick up the change. We don't
+				 * warn here if addr changed as the vma is not linked by vma_link().
+				 */
+				addr = vma->vm_start;
+				vm_flags = vma->vm_flags;
+				goto unmap_writable;
+			}
+		}
+
+		vm_flags = vma->vm_flags;
+	} else if (vm_flags & VM_SHARED) {
+		error = shmem_zero_setup(vma);
+		if (error)
+			goto free_vma;
+	} else {
+		vma_set_anonymous(vma);
+	}
+
+	/* Allow architectures to sanity-check the vm_flags */
+	if (!arch_validate_flags(vma->vm_flags)) {
+		error = -EINVAL;
+		if (file)
+			goto unmap_and_free_vma;
+		else
+			goto free_vma;
+	}
+
+	mas.index = mas.last = addr;
+	mas_walk(&mas);
+	vma_mas_link(mm, vma, &mas, prev);
+	/* Once vma denies write, undo our temporary denial count */
+	if (file) {
+unmap_writable:
+		if (vm_flags & VM_SHARED)
+			mapping_unmap_writable(file->f_mapping);
+		if (vm_flags & VM_DENYWRITE)
+			allow_write_access(file);
+	}
+	file = vma->vm_file;
+expanded:
+	perf_event_mmap(vma);
+
+	vm_stat_account(mm, vm_flags, len >> PAGE_SHIFT);
+	if (vm_flags & VM_LOCKED) {
+		if ((vm_flags & VM_SPECIAL) || vma_is_dax(vma) ||
+		    is_vm_hugetlb_page(vma) ||
+		    vma == get_gate_vma(current->mm))
+			vma->vm_flags &= VM_LOCKED_CLEAR_MASK;
+		else
+			mm->locked_vm += (len >> PAGE_SHIFT);
+	}
+
+	if (file)
+		uprobe_mmap(vma);
+
+	/*
+	 * New (or expanded) vma always get soft dirty status.
+	 * Otherwise user-space soft-dirty page tracker won't
+	 * be able to distinguish situation when vma area unmapped,
+	 * then new mapped in-place (which must be aimed as
+	 * a completely new data area).
+	 */
+	vma->vm_flags |= VM_SOFTDIRTY;
+
+	vma_set_page_prot(vma);
+
+	return addr;
+
+unmap_and_free_vma:
+	fput(vma->vm_file);
+	vma->vm_file = NULL;
+
+	/* Undo any partial mapping done by a device driver. */
+	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
+	charged = 0;
+	if (vm_flags & VM_SHARED)
+		mapping_unmap_writable(file->f_mapping);
+allow_write_and_free_vma:
+	if (vm_flags & VM_DENYWRITE)
+		allow_write_access(file);
+free_vma:
+	vm_area_free(vma);
+unacct_error:
+	if (charged)
+		vm_unacct_memory(charged);
+	return error;
+}
+
 static int __vm_munmap(unsigned long start, size_t len, bool downgrade)
 {
 	int ret;
-- 
2.30.2

  parent reply	other threads:[~2021-04-28 15:42 UTC|newest]

Thread overview: 136+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-28 15:35 [PATCH 00/94] Introducing the Maple Tree Liam Howlett
2021-04-28 15:35 ` [PATCH 01/94] mm: Add vma_lookup() Liam Howlett
2021-05-01  5:04   ` Michel Lespinasse
2021-05-03 16:08     ` Liam Howlett
2021-04-28 15:35 ` [PATCH 02/94] drm/i915/selftests: Use vma_lookup() in __igt_mmap() Liam Howlett
2021-04-28 15:35 ` [PATCH 03/94] arch/arc/kernel/troubleshoot: use vma_lookup() instead of find_vma_intersection() Liam Howlett
2021-04-28 15:35 ` [PATCH 04/94] arch/arm64/kvm: Use " Liam Howlett
2021-04-28 15:35 ` [PATCH 05/94] arch/powerpc/kvm/book3s_hv_uvmem: " Liam Howlett
2021-04-28 15:35 ` [PATCH 06/94] arch/powerpc/kvm/book3s: Use vma_lookup() in kvmppc_hv_setup_htab_rma() Liam Howlett
2021-04-28 15:35 ` [PATCH 08/94] x86/sgx: Use vma_lookup() in sgx_encl_find() Liam Howlett
2021-04-28 15:35 ` [PATCH 07/94] arch/mips/kernel/traps: Use vma_lookup() instead of find_vma_intersection() Liam Howlett
2021-04-28 15:35 ` [PATCH 09/94] virt/kvm: " Liam Howlett
2021-04-28 15:35 ` [PATCH 10/94] vfio: " Liam Howlett
2021-04-28 15:35 ` [PATCH 12/94] drm/amdgpu: Use vma_lookup() in amdgpu_ttm_tt_get_user_pages() Liam Howlett
2021-04-28 15:35 ` [PATCH 11/94] net/ipv5/tcp: Use vma_lookup() in tcp_zerocopy_receive() Liam Howlett
2021-04-28 15:35 ` [PATCH 15/94] kernel/events/uprobes: Use vma_lookup() in find_active_uprobe() Liam Howlett
2021-04-28 15:35 ` [PATCH 14/94] misc/sgi-gru/grufault: Use vma_lookup() in gru_find_vma() Liam Howlett
2021-04-28 15:35 ` [PATCH 13/94] media: videobuf2: Use vma_lookup() in get_vaddr_frames() Liam Howlett
2021-04-28 15:35 ` [PATCH 16/94] lib/test_hmm: Use vma_lookup() in dmirror_migrate() Liam Howlett
2021-04-28 15:35 ` [PATCH 18/94] mm/migrate: Use vma_lookup() in do_pages_stat_array() Liam Howlett
2021-04-28 15:35 ` [PATCH 17/94] mm/ksm: Use vma_lookup() in find_mergeable_vma() Liam Howlett
2021-04-28 15:35 ` [PATCH 19/94] mm/mremap: Use vma_lookup() in vma_to_resize() Liam Howlett
2021-04-28 15:35 ` [PATCH 20/94] mm/memory.c: Use vma_lookup() instead of find_vma_intersection() Liam Howlett
2021-04-28 15:35 ` [PATCH 21/94] radix tree test suite: Enhancements for Maple Tree Liam Howlett
2021-05-28 17:30   ` Suren Baghdasaryan
2021-05-28 18:54     ` Liam Howlett
2021-04-28 15:35 ` [PATCH 23/94] radix tree test suite: Add support for kmem_cache_free_bulk Liam Howlett
2021-05-28 17:55   ` Suren Baghdasaryan
2021-05-28 19:07     ` Liam Howlett
2021-04-28 15:35 ` [PATCH 22/94] radix tree test suite: Add support for fallthrough attribute Liam Howlett
2021-04-28 15:35 ` [PATCH 24/94] radix tree test suite: Add keme_cache_alloc_bulk() support Liam Howlett
2021-05-28 18:17   ` Suren Baghdasaryan
2021-05-28 19:28     ` Liam Howlett
2021-04-28 15:35 ` [PATCH 25/94] radix tree test suite: Add __must_be_array() support Liam Howlett
2021-04-28 15:36 ` [PATCH 26/94] Maple Tree: Add new data structure Liam Howlett
2021-05-14 10:40   ` Peter Zijlstra
2021-05-14 20:36     ` Liam Howlett
2021-05-14 10:56   ` Peter Zijlstra
2021-05-14 20:45     ` Liam Howlett
2021-05-14 11:13   ` Peter Zijlstra
2021-05-14 11:27     ` Peter Zijlstra
2021-05-14 21:23       ` Liam Howlett
2021-05-14 11:20   ` Peter Zijlstra
2021-05-14 20:46     ` Liam Howlett
2021-05-14 11:54   ` Peter Zijlstra
2021-05-14 21:25     ` Liam Howlett
2021-05-14 12:17   ` Peter Zijlstra
2021-05-14 12:43     ` Matthew Wilcox
2021-05-14 21:29     ` Liam Howlett
2021-05-14 13:42   ` Peter Zijlstra
2021-05-14 21:42     ` Liam Howlett
2021-05-14 15:32   ` Peter Zijlstra
2021-05-14 15:34     ` Peter Zijlstra
2021-05-14 21:57       ` Liam Howlett
2021-05-14 21:43     ` Liam Howlett
2021-05-14 15:40   ` Peter Zijlstra
2021-05-15  0:02     ` Liam Howlett
2021-04-28 15:36 ` [PATCH 28/94] mm/mmap: Introduce unlock_range() for code cleanup Liam Howlett
2021-04-28 15:36 ` [PATCH 27/94] mm: Start tracking VMAs with maple tree Liam Howlett
2021-04-28 15:36 ` [PATCH 30/94] mm/mmap: Change find_vma_prev() to use " Liam Howlett
2021-04-28 15:36 ` [PATCH 29/94] mm/mmap: Change find_vma() to use the " Liam Howlett
2021-04-28 15:36 ` [PATCH 32/94] kernel/fork: Convert dup_mmap to use " Liam Howlett
2021-05-29  0:42   ` Suren Baghdasaryan
2021-05-31 13:39     ` Liam Howlett
2021-04-28 15:36 ` [PATCH 31/94] mm/mmap: Change unmapped_area and unmapped_area_topdown " Liam Howlett
2021-04-28 15:36 ` [PATCH 33/94] mm: Remove rb tree Liam Howlett
2021-05-29  1:26   ` Suren Baghdasaryan
2021-05-31 13:42     ` Liam Howlett
2021-04-28 15:36 ` [PATCH 35/94] xen/privcmd: Optimized privcmd_ioctl_mmap() by using vma_lookup() Liam Howlett
2021-04-28 15:36 ` [PATCH 34/94] arch/m68k/kernel/sys_m68k: Use vma_lookup() in sys_cacheflush() Liam Howlett
2021-04-28 15:36 ` [PATCH 37/94] mm/khugepaged: Optimize collapse_pte_mapped_thp() by using vma_lookup() Liam Howlett
2021-04-28 15:36 ` [PATCH 36/94] mm: Optimize find_exact_vma() to use vma_lookup() Liam Howlett
2021-04-28 15:36 ` [PATCH 38/94] mm/gup: Add mm_populate_vma() for use when the vma is known Liam Howlett
2021-05-01  5:13   ` Michel Lespinasse
2021-05-03 15:53     ` Liam Howlett
2021-05-03 16:00       ` Matthew Wilcox
2021-05-03 23:01         ` Liam Howlett
2021-04-28 15:36 ` [PATCH 39/94] mm/mmap: Change do_brk_flags() to expand existing VMA and add do_brk_munmap() Liam Howlett
2021-04-28 15:36 ` [PATCH 40/94] mm/mmap: Change vm_brk_flags() to use mm_populate_vma() Liam Howlett
2021-04-28 15:36 ` [PATCH 41/94] mm: Change find_vma_intersection() to maple tree and make find_vma() to inline Liam Howlett
2021-04-28 15:36 ` [PATCH 44/94] mm: Remove vmacache Liam Howlett
2021-04-28 15:36 ` [PATCH 43/94] mm/mmap: Drop munmap_vma_range() Liam Howlett
2021-04-28 15:36 ` [PATCH 42/94] mm/mmap: Change mmap_region() to use maple tree state Liam Howlett
2021-04-28 15:36 ` [PATCH 45/94] mm/mmap: Change __do_munmap() to avoid unnecessary lookups Liam Howlett
2021-04-28 15:36 ` Liam Howlett [this message]
2021-04-28 15:36 ` [PATCH 47/94] mm/mmap: Add do_mas_munmap() and wraper for __do_munmap() Liam Howlett
2021-04-28 15:36 ` [PATCH 48/94] mmap: Use find_vma_intersection in do_mmap() for overlap Liam Howlett
2021-04-28 15:36 ` [PATCH 49/94] mmap: Remove __do_munmap() in favour of do_mas_munmap() Liam Howlett
2021-04-28 15:36 ` [PATCH 50/94] mm/mmap: Change do_brk_munmap() to use do_mas_align_munmap() Liam Howlett
2021-04-28 15:36 ` [PATCH 51/94] mmap: make remove_vma_list() inline Liam Howlett
2021-04-28 15:36 ` [PATCH 52/94] mm: Introduce vma_next() and vma_prev() Liam Howlett
2021-04-28 15:36 ` [PATCH 53/94] arch/arm64: Remove mmap linked list from vdso Liam Howlett
2021-04-28 15:36 ` [PATCH 54/94] arch/parisc: Remove mmap linked list from kernel/cache Liam Howlett
2021-04-28 15:36 ` [PATCH 55/94] arch/powerpc: Remove mmap linked list from mm/book3s32/tlb Liam Howlett
2021-04-28 15:36 ` [PATCH 56/94] arch/powerpc: Remove mmap linked list from mm/book3s64/subpage_prot Liam Howlett
2021-04-28 15:36 ` [PATCH 57/94] arch/s390: Use maple tree iterators instead of linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 58/94] arch/x86: Use maple tree iterators for vdso/vma Liam Howlett
2021-04-28 15:36 ` [PATCH 59/94] arch/xtensa: Use maple tree iterators for unmapped area Liam Howlett
2021-04-28 15:36 ` [PATCH 60/94] drivers/misc/cxl: Use maple tree iterators for cxl_prefault_vma() Liam Howlett
2021-04-28 15:36 ` [PATCH 61/94] drivers/tee/optee: Use maple tree iterators for __check_mem_type() Liam Howlett
2021-04-28 15:36 ` [PATCH 63/94] fs/coredump: Use maple tree iterators in place of linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 62/94] fs/binfmt_elf: Use maple tree iterators for fill_files_note() Liam Howlett
2021-04-28 15:36 ` [PATCH 64/94] fs/exec: Use vma_next() instead of linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 65/94] fs/proc/base: Use maple tree iterators in place " Liam Howlett
2021-04-28 15:36 ` [PATCH 66/94] fs/proc/task_mmu: Stop using linked list and highest_vm_end Liam Howlett
2021-04-28 15:36 ` [PATCH 67/94] fs/userfaultfd: Stop using vma linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 68/94] ipc/shm: Stop using the " Liam Howlett
2021-04-28 15:36 ` [PATCH 69/94] kernel/acct: Use maple tree iterators instead of " Liam Howlett
2021-04-28 15:36 ` [PATCH 70/94] kernel/events/core: " Liam Howlett
2021-04-28 15:36 ` [PATCH 71/94] kernel/events/uprobes: " Liam Howlett
2021-04-28 15:36 ` [PATCH 73/94] kernel/sys: " Liam Howlett
2021-04-28 15:36 ` [PATCH 72/94] kernel/sched/fair: " Liam Howlett
2021-04-28 15:36 ` [PATCH 75/94] mm/huge_memory: Use vma_next() instead of vma " Liam Howlett
2021-04-28 15:36 ` [PATCH 76/94] mm/khugepaged: Use maple tree iterators " Liam Howlett
2021-04-28 15:36 ` [PATCH 74/94] mm/gup: Use maple tree navigation instead of " Liam Howlett
2021-04-28 15:36 ` [PATCH 77/94] mm/ksm: Use maple tree iterators instead of vma " Liam Howlett
2021-04-28 15:36 ` [PATCH 78/94] mm/madvise: Use vma_next " Liam Howlett
2021-04-28 15:36 ` [PATCH 79/94] mm/memcontrol: Stop using mm->highest_vm_end Liam Howlett
2021-04-28 15:36 ` [PATCH 81/94] mm/mlock: Use maple tree iterators instead of vma linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 80/94] mm/mempolicy: " Liam Howlett
2021-04-28 15:36 ` [PATCH 82/94] mm/mprotect: Use maple tree navigation " Liam Howlett
2021-04-28 15:36 ` [PATCH 84/94] mm/msync: Use vma_next() " Liam Howlett
2021-04-28 15:36 ` [PATCH 83/94] mm/mremap: " Liam Howlett
2021-04-28 15:36 ` [PATCH 86/94] mm/pagewalk: " Liam Howlett
2021-04-28 15:36 ` [PATCH 85/94] mm/oom_kill: Use maple tree iterators " Liam Howlett
2021-04-28 15:36 ` [PATCH 87/94] mm/swapfile: Use maple tree iterator " Liam Howlett
2021-04-28 15:36 ` [PATCH 88/94] mm/util: Remove __vma_link_list() and __vma_unlink_list() Liam Howlett
2021-04-28 15:36 ` [PATCH 89/94] arch/um/kernel/tlb: Stop using linked list Liam Howlett
2021-04-28 15:36 ` [PATCH 90/94] bpf: Remove VMA " Liam Howlett
2021-04-28 15:36 ` [PATCH 91/94] mm: Remove vma " Liam Howlett
2021-04-28 15:36 ` [PATCH 92/94] mm: Return a bool from anon_vma_interval_tree_verify() Liam Howlett
2021-04-28 15:36 ` [PATCH 94/94] mm: Move mas locking outside of munmap() path Liam Howlett
2021-05-01  6:13   ` Michel Lespinasse
2021-05-03 16:05     ` Liam Howlett
2021-04-28 15:36 ` [PATCH 93/94] mm/mmap: Add mas_split_vma() and use it for munmap() Liam Howlett
     [not found] ` <20210504042930.10436-1-hdanton@sina.com>
2021-05-04 14:05   ` [PATCH 76/94] mm/khugepaged: Use maple tree iterators instead of vma Liam Howlett

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