btrfs: calculate num_pages, reserve_bytes once in btrfs_buffered_write

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write_bytes can change in btrfs_check_nocow_lock(). Calculate variables
such as num_pages and reserve_bytes once we are sure of the value of
write_bytes so there is no need to re-calculate.

Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Goldwyn Rodrigues 2020-09-25 15:36:38 -05:00 • committed by David Sterba

parent fb8a7e941b

commit eefa45f593

1 changed files with 12 additions and 22 deletions

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fs/btrfs/file.c

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