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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-20 14:39:37 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-20 14:39:37 -0700 |
commit | c4d6fe7311762f2e03b3c27ad38df7c40c80cc93 (patch) | |
tree | 42be07bf29464ea4ee5d01a5d935134bd8e7bb23 /lib/test_xarray.c | |
parent | 59f0e7eb2f9ffa7715ca95908797b52ba35af11a (diff) | |
parent | 84c34df158cf215b0cd1475ab3b8e6f212f81f23 (diff) | |
download | lwn-c4d6fe7311762f2e03b3c27ad38df7c40c80cc93.tar.gz lwn-c4d6fe7311762f2e03b3c27ad38df7c40c80cc93.zip |
Merge tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray
Pull XArray updates from Matthew Wilcox:
- Fix the test suite after introduction of the local_lock
- Fix a bug in the IDA spotted by Coverity
- Change the API that allows the workingset code to delete a node
- Fix xas_reload() when dealing with entries that occupy multiple
indices
- Add a few more tests to the test suite
- Fix an unsigned int being shifted into an unsigned long
* tag 'xarray-5.9' of git://git.infradead.org/users/willy/xarray:
XArray: Fix xas_create_range for ranges above 4 billion
radix-tree: fix the comment of radix_tree_next_slot()
XArray: Fix xas_reload for multi-index entries
XArray: Add private interface for workingset node deletion
XArray: Fix xas_for_each_conflict documentation
XArray: Test marked multiorder iterations
XArray: Test two more things about xa_cmpxchg
ida: Free allocated bitmap in error path
radix tree test suite: Fix compilation
Diffstat (limited to 'lib/test_xarray.c')
-rw-r--r-- | lib/test_xarray.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/lib/test_xarray.c b/lib/test_xarray.c index 8262c3f05a5d..8294f43f4981 100644 --- a/lib/test_xarray.c +++ b/lib/test_xarray.c @@ -289,6 +289,27 @@ static noinline void check_xa_mark_2(struct xarray *xa) xa_destroy(xa); } +static noinline void check_xa_mark_3(struct xarray *xa) +{ +#ifdef CONFIG_XARRAY_MULTI + XA_STATE(xas, xa, 0x41); + void *entry; + int count = 0; + + xa_store_order(xa, 0x40, 2, xa_mk_index(0x40), GFP_KERNEL); + xa_set_mark(xa, 0x41, XA_MARK_0); + + rcu_read_lock(); + xas_for_each_marked(&xas, entry, ULONG_MAX, XA_MARK_0) { + count++; + XA_BUG_ON(xa, entry != xa_mk_index(0x40)); + } + XA_BUG_ON(xa, count != 1); + rcu_read_unlock(); + xa_destroy(xa); +#endif +} + static noinline void check_xa_mark(struct xarray *xa) { unsigned long index; @@ -297,6 +318,7 @@ static noinline void check_xa_mark(struct xarray *xa) check_xa_mark_1(xa, index); check_xa_mark_2(xa); + check_xa_mark_3(xa); } static noinline void check_xa_shrink(struct xarray *xa) @@ -393,6 +415,9 @@ static noinline void check_cmpxchg(struct xarray *xa) XA_BUG_ON(xa, xa_cmpxchg(xa, 12345678, FIVE, LOTS, GFP_KERNEL) != FIVE); XA_BUG_ON(xa, xa_cmpxchg(xa, 5, FIVE, NULL, GFP_KERNEL) != NULL); XA_BUG_ON(xa, xa_cmpxchg(xa, 5, NULL, FIVE, GFP_KERNEL) != NULL); + XA_BUG_ON(xa, xa_insert(xa, 5, FIVE, GFP_KERNEL) != -EBUSY); + XA_BUG_ON(xa, xa_cmpxchg(xa, 5, FIVE, NULL, GFP_KERNEL) != FIVE); + XA_BUG_ON(xa, xa_insert(xa, 5, FIVE, GFP_KERNEL) == -EBUSY); xa_erase_index(xa, 12345678); xa_erase_index(xa, 5); XA_BUG_ON(xa, !xa_empty(xa)); @@ -1618,14 +1643,9 @@ static noinline void shadow_remove(struct xarray *xa) xa_lock(xa); while ((node = list_first_entry_or_null(&shadow_nodes, struct xa_node, private_list))) { - XA_STATE(xas, node->array, 0); XA_BUG_ON(xa, node->array != xa); list_del_init(&node->private_list); - xas.xa_node = xa_parent_locked(node->array, node); - xas.xa_offset = node->offset; - xas.xa_shift = node->shift + XA_CHUNK_SHIFT; - xas_set_update(&xas, test_update_node); - xas_store(&xas, NULL); + xa_delete_node(node, test_update_node); } xa_unlock(xa); } |