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| author | Qu Wenruo <wqu@suse.com> | 2017-12-12 08:34:31 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2018-03-31 01:41:14 +0200 |
| commit | 64cfaef6362fc756972f477372997fbe117d79cb (patch) | |
| tree | 226ac6bfc09822f57aeb5809880e43d094ad78c9 /fs/btrfs/qgroup.h | |
| parent | btrfs: qgroup: Don't use root->qgroup_meta_rsv for qgroup (diff) | |
| download | linux-64cfaef6362fc756972f477372997fbe117d79cb.tar.xz linux-64cfaef6362fc756972f477372997fbe117d79cb.zip | |
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>
Diffstat (limited to 'fs/btrfs/qgroup.h')
| -rw-r--r-- | fs/btrfs/qgroup.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/btrfs/qgroup.h b/fs/btrfs/qgroup.h index 987a5a49deb8..e63e2d497a8e 100644 --- a/fs/btrfs/qgroup.h +++ b/fs/btrfs/qgroup.h @@ -332,5 +332,13 @@ static inline void btrfs_qgroup_free_meta_prealloc(struct btrfs_root *root, */ void btrfs_qgroup_free_meta_all_pertrans(struct btrfs_root *root); +/* + * Convert @num_bytes of META_PREALLOCATED reservation to META_PERTRANS. + * + * This is called when preallocated meta reservation needs to be used. + * Normally after btrfs_join_transaction() call. + */ +void btrfs_qgroup_convert_reserved_meta(struct btrfs_root *root, int num_bytes); + void btrfs_qgroup_check_reserved_leak(struct inode *inode); #endif /* __BTRFS_QGROUP__ */ |