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btrfs: simplify range end calculations in truncate_block_zero_beyond_eof()

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The way zero_end is calculated and used does a -1 and +1 that
effectively cancel out, so this can be simplified. This is also
preparatory patch for using a helper for folio_pos + folio_size with the
semantics of exclusive end of the range.

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
2025-06-10 14:17:48 +02:00
parent bdd01fb036
commit e47c8a4767
1 changed files with 2 additions and 2 deletions
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4
fs/btrfs/inode.c
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@@ -4819,9 +4819,9 @@ static int truncate_block_zero_beyond_eof(struct btrfs_inode *inode, u64 start)
*/
zero_start = max_t(u64, folio_pos(folio), start);
zero_end = folio_pos(folio) + folio_size(folio) - 1;
zero_end = folio_pos(folio) + folio_size(folio);
folio_zero_range(folio, zero_start - folio_pos(folio),
zero_end - zero_start + 1);
zero_end - zero_start);
out_unlock:
folio_unlock(folio);