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authorNikolay Borisov <nborisov@suse.com>2020-11-26 15:10:39 +0200
committerDavid Sterba <dsterba@suse.com>2020-12-09 19:16:05 +0100
commit5297199a8bca12b8b96afcbf2341605efb6005de (patch)
tree0ed53552eb19eddb8b3a7ded884ab7b135b8ed09 /fs/btrfs/Makefile
parentabadc1fcd72e887a8f875dabe4a07aa8c28ac8af (diff)
downloadlinux-5297199a8bca12b8b96afcbf2341605efb6005de.tar.gz
btrfs: remove inode number cache feature
It's been deprecated since commit b547a88ea577 ("btrfs: start
deprecation of mount option inode_cache") which enumerates the reasons.

A filesystem that uses the feature (mount -o inode_cache) tracks the
inode numbers in bitmaps, that data stay on the filesystem after this
patch. The size is roughly 5MiB for 1M inodes [1], which is considered
small enough to be left there. Removal of the change can be implemented
in btrfs-progs if needed.

[1] https://lore.kernel.org/linux-btrfs/20201127145836.GZ6430@twin.jikos.cz/

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/Makefile')
-rw-r--r--fs/btrfs/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index 0497fdc37f90..9f1b1a88e317 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -3,7 +3,7 @@
 obj-$(CONFIG_BTRFS_FS) := btrfs.o
 
 btrfs-y += super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
-	   file-item.o inode-item.o inode-map.o disk-io.o \
+	   file-item.o inode-item.o disk-io.o \
 	   transaction.o inode.o file.o tree-defrag.o \
 	   extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \
 	   extent_io.o volumes.o async-thread.o ioctl.o locking.o orphan.o \