[BUG]
Test case btrfs/002 would fail if larger folios are enabled for
metadata:
assertion failed: folio, in fs/btrfs/extent_io.c:4358
------------[ cut here ]------------
kernel BUG at fs/btrfs/extent_io.c:4358!
invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 30916 Comm: fsstress Tainted: G OE 6.7.0-rc3-custom+ #128
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS unknown 2/2/2022
RIP: 0010:assert_eb_folio_uptodate+0x98/0xe0 [btrfs]
Call Trace:
<TASK>
extent_buffer_test_bit+0x3c/0x70 [btrfs]
free_space_test_bit+0xcd/0x140 [btrfs]
modify_free_space_bitmap+0x27a/0x430 [btrfs]
add_to_free_space_tree+0x8d/0x160 [btrfs]
__btrfs_free_extent.isra.0+0xef1/0x13c0 [btrfs]
__btrfs_run_delayed_refs+0x786/0x13c0 [btrfs]
btrfs_run_delayed_refs+0x33/0x120 [btrfs]
btrfs_commit_transaction+0xa2/0x1350 [btrfs]
iterate_supers+0x77/0xe0
ksys_sync+0x60/0xa0
__do_sys_sync+0xa/0x20
do_syscall_64+0x3f/0xf0
entry_SYSCALL_64_after_hwframe+0x6e/0x76
</TASK>
[CAUSE]
The function extent_buffer_test_bit() is not folio compatible.
It still assumes the old fixed page size, when an extent buffer with
large folio passed in, only eb->folios[0] is populated.
Then if the target bit range falls in the 2nd page of the folio, then we
would check eb->folios[1], and trigger the ASSERT().
[FIX]
Just migrate eb_bitmap_offset() to folio interfaces, using the
folio_size() to replace PAGE_SIZE.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
f4521b01c5