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btrfs: get rid of compressed_bio::compressed_folios[]

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Now there is no one utilizing that member, we can safely remove it along
with compressed_bio::nr_folios member. The size is reduced from 352 to
336 bytes on x86_64.

Reviewed-by: Boris Burkov <boris@bur.io>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Qu Wenruo 2026-01-29 13:53:46 +10:30 • committed by David Sterba
parent e1bc83f8b1
commit 161ab30da6
2 changed files with 0 additions and 7 deletions
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1
fs/btrfs/compression.c
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@ -300,7 +300,6 @@ static void end_bbio_compressed_write(struct btrfs_bio *bbio)
/* Note, our inode could be gone now. */
bio_for_each_folio_all(fi, &bbio->bio)
btrfs_free_compr_folio(fi.folio);
kfree(cb->compressed_folios);
bio_put(&cb->bbio.bio);
}

6
fs/btrfs/compression.h
View file

@ -42,12 +42,6 @@ static_assert((BTRFS_MAX_COMPRESSED % PAGE_SIZE) == 0);
#define BTRFS_ZLIB_DEFAULT_LEVEL 3
struct compressed_bio {
/* Number of compressed folios in the array. */
unsigned int nr_folios;
/* The folios with the compressed data on them. */
struct folio **compressed_folios;
/* starting offset in the inode for our pages */
u64 start;