kernel/linux.git/lib/test_ida.c, branch v6.6.132

ida: Fix crash in ida_free when the bitmap is empty

2024-01-20T10:51:46+00:00

[ Upstream commit af73483f4e8b6f5c68c9aa63257bdd929a9c194a ] The IDA usually detects double-frees, but that detection failed to consider the case when there are no nearby IDs allocated and so we have a NULL bitmap rather than simply having a clear bit. Add some tests to the test-suite to be sure we don't inadvertently reintroduce this problem. Unfortunately they're quite noisy so include a message to disregard the warnings. Reported-by: Zhenghan Wang Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin

test_ida: Fix lockdep warning

2018-10-15T20:31:29+00:00

The IDA was declared on the stack instead of statically, so lockdep triggered a warning that it was improperly initialised. Reported-by: 0day bot Tested-by: Rong Chen Signed-off-by: Matthew Wilcox

test_ida: check_ida_destroy and check_ida_alloc

2018-08-22T03:54:21+00:00

Move these tests from the userspace test-suite to the kernel test-suite. Also convert check_ida_random to the new API. Signed-off-by: Matthew Wilcox

test_ida: Convert check_ida_conv to new API

2018-08-22T03:54:20+00:00

Move as much as possible to kernel space; leave the parts in user space that rely on checking memory allocation failures to detect the transition between an exceptional entry and a bitmap. Signed-off-by: Matthew Wilcox

test_ida: Move ida_check_max

2018-08-22T03:54:20+00:00

Convert to new API and move to kernel space. Signed-off-by: Matthew Wilcox

test_ida: Move ida_check_leaf

2018-08-22T03:54:20+00:00

Convert to new API and move to kernel space. Take the opportunity to test the situation a little more thoroughly (ie at different offsets). Signed-off-by: Matthew Wilcox

ida: Start new test_ida module

2018-08-22T03:54:20+00:00

Start transitioning the IDA tests into kernel space. Framework heavily cribbed from test_xarray.c. Signed-off-by: Matthew Wilcox