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901b3290bd
linux/fs/btrfs/tests
History
David Disseldorp 290237fde9 btrfs: selftests: fix btrfs_test_delayed_refs() leak of transaction 
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: 2b34879d97 ("btrfs: selftests: add delayed ref self test cases")
Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2025-02-17 17:24:14 +01:00
..
btrfs-tests.c btrfs: selftests: add delayed ref self test cases 2025-01-13 14:53:13 +01:00
btrfs-tests.h btrfs: selftests: add delayed ref self test cases 2025-01-13 14:53:13 +01:00
delayed-refs-tests.c btrfs: selftests: fix btrfs_test_delayed_refs() leak of transaction 2025-02-17 17:24:14 +01:00
extent-buffer-tests.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-10-12 16:44:07 +02:00
extent-io-tests.c btrfs: convert find_lock_delalloc_range() to use a folio 2024-09-10 16:51:14 +02:00
extent-map-tests.c btrfs: fix corrupt read due to bad offset of a compressed extent map 2024-07-25 23:54:06 +02:00
free-space-tests.c btrfs: remove use btrfs_remove_free_space_cache instead of variant 2022-09-26 12:27:58 +02:00
free-space-tree-tests.c btrfs: convert btrfs_block_group::needs_free_space to runtime flag 2022-12-05 18:00:51 +01:00
inode-tests.c btrfs: remove extent_map::block_start member 2024-07-11 15:33:21 +02:00
qgroup-tests.c btrfs: use a structure to pass arguments to backref walking functions 2022-12-05 18:00:50 +01:00
raid-stripe-tree-tests.c btrfs: selftests: add a selftest for deleting two out of three extents 2025-01-14 15:57:55 +01:00