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Diffstat (limited to 'fs/btrfs/compression.c')
| -rw-r--r-- | fs/btrfs/compression.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index aeda426b6121..18579b904d5c 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -564,6 +564,16 @@ static noinline int add_ra_bio_pages(struct inode *inode, if (isize == 0) return 0; + /* + * For current subpage support, we only support 64K page size, + * which means maximum compressed extent size (128K) is just 2x page + * size. + * This makes readahead less effective, so here disable readahead for + * subpage for now, until full compressed write is supported. + */ + if (btrfs_sb(inode->i_sb)->sectorsize < PAGE_SIZE) + return 0; + end_index = (i_size_read(inode) - 1) >> PAGE_SHIFT; while (last_offset < compressed_end) { |