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btrfs: qgroup: Introduce function to convert META_PREALLOC into META_PERTRANS
authorQu Wenruo <wqu@suse.com>
Tue, 12 Dec 2017 07:34:31 +0000 (15:34 +0800)
committerDavid Sterba <dsterba@suse.com>
Fri, 30 Mar 2018 23:41:14 +0000 (01:41 +0200)
commit64cfaef6362fc756972f477372997fbe117d79cb
tree226ac6bfc09822f57aeb5809880e43d094ad78c9tree | snapshot
parente1211d0e896b71d395fe411d0e0a76f4bc336617commit | diff
btrfs: qgroup: Introduce function to convert META_PREALLOC into META_PERTRANS

For meta_prealloc reservation users, after btrfs_join_transaction()
caller will modify tree so part (or even all) meta_prealloc reservation
should be converted to meta_pertrans until transaction commit time.

This patch introduces a new function,
btrfs_qgroup_convert_reserved_meta() to do this for META_PREALLOC
reservation user.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/qgroup.c diff | blob | history
fs/btrfs/qgroup.h diff | blob | history
John Crispins staging tree