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binder: Fix selftest page indexing

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[ Upstream commit bea3e7bfa2 ]

The binder allocator selftest was only checking the last page of buffers
that ended on a page boundary. Correct the page indexing to account for
buffers that are not page-aligned.

Signed-off-by: Tiffany Yang <ynaffit@google.com>
Acked-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20250714185321.2417234-2-ynaffit@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tiffany Yang 2025-07-14 11:53:14 -07:00 committed by Greg Kroah-Hartman
parent 877d4218fd
commit 0fddc6f950
1 changed files with 1 additions and 1 deletions
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2
drivers/android/binder_alloc_selftest.c
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@ -142,12 +142,12 @@ static void binder_selftest_free_buf(struct binder_alloc *alloc,
for (i = 0; i < BUFFER_NUM; i++) for (i = 0; i < BUFFER_NUM; i++)
binder_alloc_free_buf(alloc, buffers[seq[i]]); binder_alloc_free_buf(alloc, buffers[seq[i]]);
for (i = 0; i < end / PAGE_SIZE; i++) {
/** /**
* Error message on a free page can be false positive * Error message on a free page can be false positive
* if binder shrinker ran during binder_alloc_free_buf * if binder shrinker ran during binder_alloc_free_buf
* calls above. * calls above.
*/ */
for (i = 0; i <= (end - 1) / PAGE_SIZE; i++) {
if (list_empty(page_to_lru(alloc->pages[i]))) { if (list_empty(page_to_lru(alloc->pages[i]))) {
pr_err_size_seq(sizes, seq); pr_err_size_seq(sizes, seq);
pr_err("expect lru but is %s at page index %d\n", pr_err("expect lru but is %s at page index %d\n",