From: Liam Howlett <liam.howlett@oracle.com>
To: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"maple-tree@lists.infradead.org" <maple-tree@lists.infradead.org>
Cc: Liam Howlett <liam.howlett@oracle.com>,
Liam Howlett <liam.howlett@oracle.com>
Subject: [PATCH v3 15/48] ipc/shm: Use the vma iterator for munmap calls
Date: Tue, 17 Jan 2023 02:34:14 +0000 [thread overview]
Message-ID: <20230117023335.1690727-16-Liam.Howlett@oracle.com> (raw)
In-Reply-To: <20230117023335.1690727-1-Liam.Howlett@oracle.com>
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>
Pass through the vma iterator to do_vmi_munmap() to handle the iterator
state internally
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---
ipc/shm.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/ipc/shm.c b/ipc/shm.c
index bd2fcc4d454e..1c6a6b319a49 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1786,8 +1786,8 @@ long ksys_shmdt(char __user *shmaddr)
*/
file = vma->vm_file;
size = i_size_read(file_inode(vma->vm_file));
- do_munmap(mm, vma->vm_start, vma->vm_end - vma->vm_start, NULL);
- mas_pause(&vmi.mas);
+ do_vmi_munmap(&vmi, mm, vma->vm_start,
+ vma->vm_end - vma->vm_start, NULL, false);
/*
* We discovered the size of the shm segment, so
* break out of here and fall through to the next
@@ -1810,10 +1810,9 @@ long ksys_shmdt(char __user *shmaddr)
/* finding a matching vma now does not alter retval */
if ((vma->vm_ops == &shm_vm_ops) &&
((vma->vm_start - addr)/PAGE_SIZE == vma->vm_pgoff) &&
- (vma->vm_file == file)) {
- do_munmap(mm, vma->vm_start, vma->vm_end - vma->vm_start, NULL);
- mas_pause(&vmi.mas);
- }
+ (vma->vm_file == file))
+ do_vmi_munmap(&vmi, mm, vma->vm_start,
+ vma->vm_end - vma->vm_start, NULL, false);
vma = vma_next(&vmi);
}
--
2.35.1
next prev parent reply other threads:[~2023-01-17 2:34 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-17 2:34 [PATCH v3 00/48] VMA tree type safety and remove __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 01/48] maple_tree: Add mas_init() function Liam Howlett
2023-01-17 2:34 ` [PATCH v3 02/48] maple_tree: Fix potential rcu issue Liam Howlett
2023-01-17 2:34 ` [PATCH v3 04/48] test_maple_tree: Test modifications while iterating Liam Howlett
2023-01-17 2:34 ` [PATCH v3 03/48] maple_tree: Reduce user error potential Liam Howlett
2023-01-17 2:34 ` [PATCH v3 05/48] maple_tree: Fix handle of invalidated state in mas_wr_store_setup() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 07/48] mm: Expand vma iterator interface Liam Howlett
2023-01-17 2:34 ` [PATCH v3 06/48] maple_tree: Fix mas_prev() and mas_find() state handling Liam Howlett
2023-01-17 2:34 ` [PATCH v3 08/48] mm/mmap: convert brk to use vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 09/48] kernel/fork: Convert forking to using the vmi iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 11/48] mm/mmap: Remove preallocation from do_mas_align_munmap() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 10/48] mmap: Convert vma_link() vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 12/48] mmap: Change do_mas_munmap and do_mas_aligned_munmap() to use " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 13/48] mmap: Convert vma_expand() " Liam Howlett
2023-01-17 2:34 ` Liam Howlett [this message]
2023-01-17 2:34 ` [PATCH v3 14/48] mm: Add temporary vma iterator versions of vma_merge(), split_vma(), and __split_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 17/48] mm: Change mprotect_fixup to vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 16/48] userfaultfd: Use " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 18/48] mlock: Convert mlock to " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 20/48] mempolicy: Convert " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 19/48] coredump: " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 21/48] task_mmu: " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 24/48] mmap: Pass through vmi iterator to __split_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 23/48] madvise: Use vmi iterator for __split_vma() and vma_merge() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 22/48] sched: Convert to vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 27/48] nommu: Convert nommu to using the " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 26/48] mm/mremap: Use vmi version of vma_merge() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 28/48] nommu: Pass through vma iterator to shrink_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 25/48] mmap: Use vmi version of vma_merge() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 30/48] mm/damon: Stop using vma_mas_store() for maple tree store Liam Howlett
2023-01-17 19:11 ` SeongJae Park
2023-01-17 19:16 ` SeongJae Park
2023-01-17 22:20 ` Daniel Latypov
2023-01-17 22:47 ` Liam Howlett
2023-01-19 2:00 ` SeongJae Park
2023-01-19 18:55 ` Liam R. Howlett
2023-01-17 2:34 ` [PATCH v3 29/48] mm: Switch vma_merge(), split_vma(), and __split_vma to vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 31/48] mmap: Convert __vma_adjust() to use " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 32/48] mm: Pass through vma iterator to __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 34/48] mm: Remove unnecessary write to vma iterator in __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 33/48] madvise: Use split_vma() instead of __split_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 35/48] mm: Pass vma iterator through to __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 37/48] mmap: Clean up mmap_region() unrolling Liam Howlett
2023-01-17 2:34 ` [PATCH v3 38/48] mm: Change munmap splitting order and move_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 36/48] mm: Add vma iterator to vma_adjust() arguments Liam Howlett
2023-01-17 2:34 ` [PATCH v3 42/48] mm/mmap: Introduce init_vma_prep() and init_multi_vma_prep() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 40/48] mm/mmap: Refactor locking out of __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 41/48] mm/mmap: Use vma_prepare() and vma_complete() in vma_expand() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 39/48] mm/mmap: move anon_vma setting in __vma_adjust() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 44/48] mm/mmap: Don't use __vma_adjust() in shift_arg_pages() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 45/48] mm/mmap: Introduce dup_vma_anon() helper Liam Howlett
2023-01-17 2:34 ` [PATCH v3 43/48] mm: Don't use __vma_adjust() in __split_vma() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 46/48] mm/mmap: Convert do_brk_flags() to use vma_prepare() and vma_complete() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 48/48] vma_merge: Set vma iterator to correct position Liam Howlett
2023-01-17 2:34 ` [PATCH v3 47/48] mm/mmap: Remove __vma_adjust() Liam Howlett
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