kernel.git/fs/btrfs/tests, branch linux-6.15.y

btrfs: use unsigned types for constants defined as bit shifts

2025-07-06T09:04:10Z

[ Upstream commit 05a6ec865d091fe8244657df8063f74e704d1711 ] The unsigned type is a recommended practice (CWE-190, CWE-194) for bit shifts to avoid problems with potential unwanted sign extensions. Although there are no such cases in btrfs codebase, follow the recommendation. Reviewed-by: Boris Burkov Signed-off-by: David Sterba Stable-dep-of: 1f2889f5594a ("btrfs: fix qgroup reservation leak on failure to allocate ordered extent") Signed-off-by: Sasha Levin

btrfs: tests: fix chunk map leak after failure to add it to the tree

2025-03-18T19:35:51Z

If we fail to add the chunk map to the fs mapping tree we exit test_rmap_block() without freeing the chunk map. Fix this by adding a call to btrfs_free_chunk_map() before exiting the test function if the call to btrfs_add_chunk_map() failed. Fixes: 7dc66abb5a47 ("btrfs: use a dedicated data structure for chunk maps") CC: stable@vger.kernel.org # 6.12+ Reviewed-by: Boris Burkov Signed-off-by: Filipe Manana Reviewed-by: David Sterba Signed-off-by: David Sterba

btrfs: merge alloc_dummy_extent_buffer() helpers

2025-03-18T19:35:47Z

After previous patch removing nodesize from parameters, __alloc_dummy_extent_buffer() and alloc_dummy_extent_buffer() are identical so we can drop one. Reviewed-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: don't pass nodesize to __alloc_extent_buffer()

2025-03-18T19:35:47Z

All callers pass a valid fs_info so we can read the nodesize from that instead of passing it as parameter. Reviewed-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: selftests: fix btrfs_test_delayed_refs() leak of transaction

2025-02-17T16:24:14Z

The btrfs_transaction struct leaks, which can cause sporadic fstests failures when kmemleak checking is enabled: kmemleak: 5 new suspected memory leaks (see /sys/kernel/debug/kmemleak) > cat /sys/kernel/debug/kmemleak unreferenced object 0xffff88810fdc6c00 (size 512): comm "modprobe", pid 203, jiffies 4294892552 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 6736050f): __kmalloc_cache_noprof+0x133/0x2c0 btrfs_test_delayed_refs+0x6f/0xbb0 [btrfs] btrfs_run_sanity_tests.cold+0x91/0xf9 [btrfs] 0xffffffffa02fd055 do_one_initcall+0x49/0x1c0 do_init_module+0x5b/0x1f0 init_module_from_file+0x70/0x90 idempotent_init_module+0xe8/0x2c0 __x64_sys_finit_module+0x6b/0xd0 do_syscall_64+0x54/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e The transaction struct was initially stack-allocated but switched to heap following frame size compiler warnings. Fixes: 2b34879d97e27 ("btrfs: selftests: add delayed ref self test cases") Signed-off-by: David Disseldorp Reviewed-by: David Sterba Signed-off-by: David Sterba

btrfs: selftests: add a selftest for deleting two out of three extents

2025-01-14T14:57:55Z

Add a selftest creating three extents and then deleting two out of the three extents. Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: selftests: add test for punching a hole into 3 RAID stripe-extents

2025-01-14T14:56:40Z

Test creating a range of three RAID stripe-extents and then punch a hole in the middle, deleting all of the middle extents and partially deleting the "book ends". Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: selftests: add selftest for punching holes into the RAID stripe extents

2025-01-14T14:54:45Z

Add a selftest for punching a hole into a RAID stripe extent. The test create an 1M extent and punches a 64k bytes long hole at offset of 32k from the start of the extent. Afterwards it verifies the start and length of both resulting new extents "left" and "right" as well as the absence of the hole. Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: selftests: test RAID stripe-tree deletion spanning two items

2025-01-14T14:54:44Z

Add a selftest for RAID stripe-tree deletion with a delete range spanning two items, so that we're punching a hole into two adjacent RAID stripe extents truncating the first and "moving" the second to the right. The following diagram illustrates the operation: |--- RAID Stripe Extent ---||--- RAID Stripe Extent ---| |----- keep -----|--- drop ---|----- keep ----| Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba

btrfs: selftests: don't split RAID extents in half

2025-01-14T14:52:30Z

The selftests for partially deleting the start or tail of RAID stripe-extents split these extents in half. This can hide errors in the calculation, so don't split the RAID stripe-extents in half but delete the first or last 16K of the 64K extents. Reviewed-by: Filipe Manana Signed-off-by: Johannes Thumshirn Signed-off-by: David Sterba