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xfs: hoist xfs_{bump,drop}link to libxfs

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Move xfs_bumplink and xfs_droplink to libxfs.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2024-07-02 11:22:41 -07:00
parent b8a6107921
commit a9e583d34f
4 changed files with 55 additions and 55 deletions
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53
fs/xfs/libxfs/xfs_inode_util.c
View File

@ -626,3 +626,56 @@ xfs_iunlink_remove(
return xfs_iunlink_remove_inode(tp, pag, agibp, ip);
}
/*
* 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)
{
struct inode *inode = VFS_I(ip);
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
if (inode->i_nlink == 0) {
xfs_info_ratelimited(tp->t_mountp,
"Inode 0x%llx link count dropped below zero. Pinning link count.",
ip->i_ino);
set_nlink(inode, XFS_NLINK_PINNED);
}
if (inode->i_nlink != XFS_NLINK_PINNED)
drop_nlink(inode);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
if (inode->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)
{
struct inode *inode = VFS_I(ip);
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
if (inode->i_nlink == XFS_NLINK_PINNED - 1)
xfs_info_ratelimited(tp->t_mountp,
"Inode 0x%llx link count exceeded maximum. Pinning link count.",
ip->i_ino);
if (inode->i_nlink != XFS_NLINK_PINNED)
inc_nlink(inode);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
}

2
fs/xfs/libxfs/xfs_inode_util.h
View File

@ -50,5 +50,7 @@ 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);
#endif /* __XFS_INODE_UTIL_H__ */

53
fs/xfs/xfs_inode.c
View File

@ -600,59 +600,6 @@ xfs_icreate(
return 0;
}
/*
* 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)
{
struct inode *inode = VFS_I(ip);
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
if (inode->i_nlink == 0) {
xfs_info_ratelimited(tp->t_mountp,
"Inode 0x%llx link count dropped below zero. Pinning link count.",
ip->i_ino);
set_nlink(inode, XFS_NLINK_PINNED);
}
if (inode->i_nlink != XFS_NLINK_PINNED)
drop_nlink(inode);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
if (inode->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)
{
struct inode *inode = VFS_I(ip);
xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_CHG);
if (inode->i_nlink == XFS_NLINK_PINNED - 1)
xfs_info_ratelimited(tp->t_mountp,
"Inode 0x%llx link count exceeded maximum. Pinning link count.",
ip->i_ino);
if (inode->i_nlink != XFS_NLINK_PINNED)
inc_nlink(inode);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
}
#ifdef CONFIG_XFS_LIVE_HOOKS
/*
* Use a static key here to reduce the overhead of directory live update hooks.

2
fs/xfs/xfs_inode.h
View File

@ -615,8 +615,6 @@ void xfs_end_io(struct work_struct *work);
int xfs_ilock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
void xfs_iunlock2_io_mmap(struct xfs_inode *ip1, struct xfs_inode *ip2);
void xfs_iunlock2_remapping(struct xfs_inode *ip1, struct xfs_inode *ip2);
int xfs_droplink(struct xfs_trans *tp, struct xfs_inode *ip);
void xfs_bumplink(struct xfs_trans *tp, struct xfs_inode *ip);
void xfs_lock_inodes(struct xfs_inode **ips, int inodes, uint lock_mode);
void xfs_sort_inodes(struct xfs_inode **i_tab, unsigned int num_inodes);