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 01/48] maple_tree: Add mas_init() function
Date: Tue, 17 Jan 2023 02:34:09 +0000 [thread overview]
Message-ID: <20230117023335.1690727-2-Liam.Howlett@oracle.com> (raw)
In-Reply-To: <20230117023335.1690727-1-Liam.Howlett@oracle.com>
From: "Liam R. Howlett" <Liam.Howlett@Oracle.com>
Add a function that will zero out the maple state struct and set some
basic defaults.
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
---
include/linux/maple_tree.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/include/linux/maple_tree.h b/include/linux/maple_tree.h
index e594db58a0f1..3f972602c978 100644
--- a/include/linux/maple_tree.h
+++ b/include/linux/maple_tree.h
@@ -433,6 +433,7 @@ struct ma_wr_state {
.min = 0, \
.max = ULONG_MAX, \
.alloc = NULL, \
+ .mas_flags = 0, \
}
#define MA_WR_STATE(name, ma_state, wr_entry) \
@@ -471,6 +472,16 @@ void *mas_next(struct ma_state *mas, unsigned long max);
int mas_empty_area(struct ma_state *mas, unsigned long min, unsigned long max,
unsigned long size);
+static inline void mas_init(struct ma_state *mas, struct maple_tree *tree,
+ unsigned long addr)
+{
+ memset(mas, 0, sizeof(struct ma_state));
+ mas->tree = tree;
+ mas->index = mas->last = addr;
+ mas->max = ULONG_MAX;
+ mas->node = MAS_START;
+}
+
/* Checks if a mas has not found anything */
static inline bool mas_is_none(struct ma_state *mas)
{
--
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 ` Liam Howlett [this message]
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 02/48] maple_tree: Fix potential rcu issue 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 06/48] maple_tree: Fix mas_prev() and mas_find() state handling 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 09/48] kernel/fork: Convert forking to using the vmi iterator 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 11/48] mm/mmap: Remove preallocation from do_mas_align_munmap() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 12/48] mmap: Change do_mas_munmap and do_mas_aligned_munmap() to use vma iterator Liam Howlett
2023-01-17 2:34 ` [PATCH v3 10/48] mmap: Convert vma_link() " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 15/48] ipc/shm: Use the vma iterator for munmap calls Liam Howlett
2023-01-17 2:34 ` [PATCH v3 13/48] mmap: Convert vma_expand() to use vma iterator Liam Howlett
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 18/48] mlock: Convert mlock " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 16/48] userfaultfd: Use " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 19/48] coredump: Convert to " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 20/48] mempolicy: " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 21/48] task_mmu: " Liam Howlett
2023-01-17 2:34 ` [PATCH v3 22/48] sched: " 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 24/48] mmap: Pass through vmi iterator to __split_vma() 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 27/48] nommu: Convert nommu to using the vma iterator 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 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 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 32/48] mm: Pass through vma iterator to __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 34/48] mm: Remove unnecessary write to vma iterator in __vma_adjust() 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 36/48] mm: Add vma iterator to vma_adjust() arguments 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 40/48] mm/mmap: Refactor locking out of __vma_adjust() 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 39/48] mm/mmap: move anon_vma setting in __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 45/48] mm/mmap: Introduce dup_vma_anon() helper 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 43/48] mm: Don't use __vma_adjust() in __split_vma() 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 46/48] mm/mmap: Convert do_brk_flags() to use vma_prepare() and vma_complete() Liam Howlett
2023-01-17 2:34 ` [PATCH v3 47/48] mm/mmap: Remove __vma_adjust() Liam Howlett
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