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| author | Matthew Wilcox <willy@infradead.org> | 2018-04-09 23:52:21 +0300 |
|---|---|---|
| committer | Matthew Wilcox <willy@infradead.org> | 2018-10-21 17:46:45 +0300 |
| commit | adb9d9c4ccb1ff0bf1d376e65f36aa5573c75c1a (patch) | |
| tree | 3d95a5cfd046858380eea28aba8042ba545067b1 /lib | |
| parent | 8cf2f98411e3a0865026a1061af637161b16d32b (diff) | |
| download | linux-adb9d9c4ccb1ff0bf1d376e65f36aa5573c75c1a.tar.xz | |
radix tree: Remove radix_tree_clear_tags
The page cache was the only user of this interface and it has now
been converted to the XArray. Transform the test into a test of
xas_init_marks().
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/radix-tree.c | 13 | ||||
| -rw-r--r-- | lib/test_xarray.c | 40 |
2 files changed, 40 insertions, 13 deletions
diff --git a/lib/radix-tree.c b/lib/radix-tree.c index b57ddc3dbbbd..e92f2b6ae9c5 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -1670,19 +1670,6 @@ void *radix_tree_delete(struct radix_tree_root *root, unsigned long index) } EXPORT_SYMBOL(radix_tree_delete); -void radix_tree_clear_tags(struct radix_tree_root *root, - struct radix_tree_node *node, - void __rcu **slot) -{ - if (node) { - unsigned int tag, offset = get_slot_offset(node, slot); - for (tag = 0; tag < RADIX_TREE_MAX_TAGS; tag++) - node_tag_clear(root, node, tag, offset); - } else { - root_tag_clear_all(root); - } -} - /** * radix_tree_tagged - test whether any items in the tree are tagged * @root: radix tree root diff --git a/lib/test_xarray.c b/lib/test_xarray.c index 815daffdd8c9..ca86141641cb 100644 --- a/lib/test_xarray.c +++ b/lib/test_xarray.c @@ -213,12 +213,52 @@ static noinline void check_xa_mark_1(struct xarray *xa, unsigned long index) XA_BUG_ON(xa, !xa_empty(xa)); } +static noinline void check_xa_mark_2(struct xarray *xa) +{ + XA_STATE(xas, xa, 0); + unsigned long index; + unsigned int count = 0; + void *entry; + + xa_store_index(xa, 0, GFP_KERNEL); + xa_set_mark(xa, 0, XA_MARK_0); + xas_lock(&xas); + xas_load(&xas); + xas_init_marks(&xas); + xas_unlock(&xas); + XA_BUG_ON(xa, !xa_get_mark(xa, 0, XA_MARK_0) == 0); + + for (index = 3500; index < 4500; index++) { + xa_store_index(xa, index, GFP_KERNEL); + xa_set_mark(xa, index, XA_MARK_0); + } + + xas_reset(&xas); + rcu_read_lock(); + xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0) + count++; + rcu_read_unlock(); + XA_BUG_ON(xa, count != 1000); + + xas_lock(&xas); + xas_for_each(&xas, entry, ULONG_MAX) { + xas_init_marks(&xas); + XA_BUG_ON(xa, !xa_get_mark(xa, xas.xa_index, XA_MARK_0)); + XA_BUG_ON(xa, !xas_get_mark(&xas, XA_MARK_0)); + } + xas_unlock(&xas); + + xa_destroy(xa); +} + static noinline void check_xa_mark(struct xarray *xa) { unsigned long index; for (index = 0; index < 16384; index += 4) check_xa_mark_1(xa, index); + + check_xa_mark_2(xa); } static noinline void check_xa_shrink(struct xarray *xa) |