btrfs: don't allocate file extent tree for non regular files

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When not using the NO_HOLES feature we always allocate an io tree for an
inode's file_extent_tree. This is wasteful because that io tree is only
used for regular files, so we allocate more memory than needed for inodes
that represent directories or symlinks for example, or for inodes that
correspond to free space inodes.

So improve on this by allocating the io tree only for inodes of regular
files that are not free space inodes.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Filipe Manana 2024-04-30 16:52:27 +01:00 • committed by David Sterba

parent d9891ae28b

commit 3d7db6e8bd

2 changed files with 42 additions and 24 deletions

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13

fs/btrfs/file-item.c

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53

fs/btrfs/inode.c

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