diff options
Diffstat (limited to 'fs/xfs/libxfs')
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_util.c | 35 | ||||
| -rw-r--r-- | fs/xfs/libxfs/xfs_inode_util.h | 2 |
2 files changed, 37 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_inode_util.c b/fs/xfs/libxfs/xfs_inode_util.c index e6fd0455c994..b6c6d321f6fc 100644 --- a/fs/xfs/libxfs/xfs_inode_util.c +++ b/fs/xfs/libxfs/xfs_inode_util.c @@ -756,3 +756,38 @@ xfs_iunlink_remove( return xfs_iunlink_update_bucket(tp, pag, agibp, bucket_index, next_agino); } + +/* + * Decrement the link count on an inode & log the change. If this causes the + * link count to go to zero, move the inode to AGI unlinked list so that it can + * be freed when the last active reference goes away via xfs_inactive(). + */ +int +xfs_droplink( + struct xfs_trans *tp, + struct xfs_inode *ip) +{ + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); + + drop_nlink(VFS_I(ip)); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); + + if (VFS_I(ip)->i_nlink) + return 0; + + return xfs_iunlink(tp, ip); +} + +/* + * Increment the link count on an inode & log the change. + */ +void +xfs_bumplink( + struct xfs_trans *tp, + struct xfs_inode *ip) +{ + xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG); + + inc_nlink(VFS_I(ip)); + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); +} diff --git a/fs/xfs/libxfs/xfs_inode_util.h b/fs/xfs/libxfs/xfs_inode_util.h index a32912c2cc4d..24fd4163e3ee 100644 --- a/fs/xfs/libxfs/xfs_inode_util.h +++ b/fs/xfs/libxfs/xfs_inode_util.h @@ -58,6 +58,8 @@ void xfs_inode_init(struct xfs_trans *tp, const struct xfs_icreate_args *args, int xfs_iunlink(struct xfs_trans *tp, struct xfs_inode *ip); int xfs_iunlink_remove(struct xfs_trans *tp, struct xfs_perag *pag, struct xfs_inode *ip); +int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip); +void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip); /* The libxfs client must provide this group of helper functions. */ |