diff options
Diffstat (limited to 'fs/xfs/xfs_reflink.h')
| -rw-r--r-- | fs/xfs/xfs_reflink.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h index 4a9e3cd4768a..2a3052fbe23e 100644 --- a/fs/xfs/xfs_reflink.h +++ b/fs/xfs/xfs_reflink.h @@ -6,11 +6,24 @@ #ifndef __XFS_REFLINK_H #define __XFS_REFLINK_H 1 +static inline bool xfs_is_always_cow_inode(struct xfs_inode *ip) +{ + return ip->i_mount->m_always_cow && + xfs_sb_version_hasreflink(&ip->i_mount->m_sb); +} + +static inline bool xfs_is_cow_inode(struct xfs_inode *ip) +{ + return xfs_is_reflink_inode(ip) || xfs_is_always_cow_inode(ip); +} + extern int xfs_reflink_find_shared(struct xfs_mount *mp, struct xfs_trans *tp, xfs_agnumber_t agno, xfs_agblock_t agbno, xfs_extlen_t aglen, xfs_agblock_t *fbno, xfs_extlen_t *flen, bool find_maximal); extern int xfs_reflink_trim_around_shared(struct xfs_inode *ip, struct xfs_bmbt_irec *irec, bool *shared); +bool xfs_inode_need_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, + bool *shared); extern int xfs_reflink_allocate_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, bool *shared, uint *lockmode, |