btrfs: zoned: reorder log node allocation on zoned filesystem

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This is the 3/3 patch to enable tree-log on zoned filesystems.

The allocation order of nodes of "fs_info->log_root_tree" and nodes of
"root->log_root" is not the same as the writing order of them. So, the
writing causes unaligned write errors.

Reorder the allocation of them by delaying allocation of the root node of
"fs_info->log_root_tree," so that the node buffers can go out sequentially
to devices.

Cc: Filipe Manana <fdmanana@gmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Naohiro Aota 2021-02-04 19:22:20 +09:00 • committed by David Sterba

parent fa1a0f42a0

commit 3ddebf27fc

2 changed files with 28 additions and 11 deletions

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12

fs/btrfs/disk-io.c

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27

fs/btrfs/tree-log.c

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