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| author | Nikolay Borisov <nborisov@suse.com> | 2020-11-26 15:10:39 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2020-12-09 19:16:05 +0100 |
| commit | 5297199a8bca12b8b96afcbf2341605efb6005de (patch) | |
| tree | 0ed53552eb19eddb8b3a7ded884ab7b135b8ed09 /fs/btrfs/inode-map.h | |
| parent | abadc1fcd72e887a8f875dabe4a07aa8c28ac8af (diff) | |
| download | lwn-5297199a8bca12b8b96afcbf2341605efb6005de.tar.gz lwn-5297199a8bca12b8b96afcbf2341605efb6005de.zip | |
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/inode-map.h')
| -rw-r--r-- | fs/btrfs/inode-map.h | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/fs/btrfs/inode-map.h b/fs/btrfs/inode-map.h deleted file mode 100644 index 629baf9aefb1..000000000000 --- a/fs/btrfs/inode-map.h +++ /dev/null @@ -1,13 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef BTRFS_INODE_MAP_H -#define BTRFS_INODE_MAP_H - -void btrfs_init_free_ino_ctl(struct btrfs_root *root); -void btrfs_unpin_free_ino(struct btrfs_root *root); -void btrfs_return_ino(struct btrfs_root *root, u64 objectid); -int btrfs_find_free_ino(struct btrfs_root *root, u64 *objectid); -int btrfs_save_ino_cache(struct btrfs_root *root, - struct btrfs_trans_handle *trans); - -#endif |