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| author |   Matthew Wilcox <willy@infradead.org> | 2018-07-04 15:42:46 -0400 |
|---|---|---|
| committer | Matthew Wilcox <willy@infradead.org> | 2018-10-21 10:46:33 -0400 |
| commit | f32f004cddf86d63a9c42994bbce9f4e2f07c9fa (patch) | |
| tree | ecd72e417a02e78fc70622c9eb1a889044138e10 /tools/testing/radix-tree/idr-test.c | |
| parent | xarray: Track free entries in an XArray (diff) | |
| download | linux-dev-f32f004cddf86d63a9c42994bbce9f4e2f07c9fa.tar.xz linux-dev-f32f004cddf86d63a9c42994bbce9f4e2f07c9fa.zip | |
ida: Convert to XArray
Use the XA_TRACK_FREE ability to track which entries have a free bit,
similarly to how it uses the radix tree's IDR_FREE tag. This eliminates
the per-cpu ida_bitmap preload, and fixes the memory consumption
regression I introduced when making the IDR able to store any pointer.
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Diffstat (limited to 'tools/testing/radix-tree/idr-test.c')
| -rw-r--r-- | tools/testing/radix-tree/idr-test.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c index a5a4494922a6..1b63bdb7688f 100644 --- a/tools/testing/radix-tree/idr-test.c +++ b/tools/testing/radix-tree/idr-test.c @@ -402,16 +402,15 @@ void ida_check_nomem(void) */ void ida_check_conv_user(void) { -#if 0 DEFINE_IDA(ida); unsigned long i; - radix_tree_cpu_dead(1); for (i = 0; i < 1000000; i++) { int id = ida_alloc(&ida, GFP_NOWAIT); if (id == -ENOMEM) { - IDA_BUG_ON(&ida, (i % IDA_BITMAP_BITS) != - BITS_PER_XA_VALUE); + IDA_BUG_ON(&ida, ((i % IDA_BITMAP_BITS) != + BITS_PER_XA_VALUE) && + ((i % IDA_BITMAP_BITS) != 0)); id = ida_alloc(&ida, GFP_KERNEL); } else { IDA_BUG_ON(&ida, (i % IDA_BITMAP_BITS) == @@ -420,7 +419,6 @@ void ida_check_conv_user(void) IDA_BUG_ON(&ida, id != i); } ida_destroy(&ida); -#endif } void ida_check_random(void) |