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authorQu Wenruo <wqu@suse.com>2021-03-15 13:39:15 +0800
committerDavid Sterba <dsterba@suse.com>2021-03-16 11:06:21 +0100
commit60484cd9d50117017cf53d5310c6cd629600dc69 (patch)
treed9fd8b21118ecfb047beb71c427fec8cffe0d475 /fs/btrfs/inode.c
parentd9bb77d51e668a1a6d4530c1ea471574d0ce465f (diff)
downloadlinux-stericsson-60484cd9d50117017cf53d5310c6cd629600dc69.tar.gz
btrfs: subpage: make readahead work properly
In readahead infrastructure, we are using a lot of hard coded PAGE_SHIFT while we're not doing anything specific to PAGE_SIZE. One of the most affected part is the radix tree operation of btrfs_fs_info::reada_tree. If using PAGE_SHIFT, subpage metadata readahead is broken and does no help reading metadata ahead. Fix the problem by using btrfs_fs_info::sectorsize_bits so that readahead could work for subpage. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/inode.c')
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