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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /fs/xfs/xfs_reflink.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/xfs_reflink.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/fs/xfs/xfs_reflink.h b/fs/xfs/xfs_reflink.h new file mode 100644 index 000000000..65c5dfe17 --- /dev/null +++ b/fs/xfs/xfs_reflink.h @@ -0,0 +1,56 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2016 Oracle. All Rights Reserved. + * Author: Darrick J. Wong <darrick.wong@oracle.com> + */ +#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_has_reflink(ip->i_mount); +} + +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_trim_around_shared(struct xfs_inode *ip, + struct xfs_bmbt_irec *irec, bool *shared); +int xfs_bmap_trim_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, + bool *shared); + +int xfs_reflink_allocate_cow(struct xfs_inode *ip, struct xfs_bmbt_irec *imap, + struct xfs_bmbt_irec *cmap, bool *shared, uint *lockmode, + bool convert_now); +extern int xfs_reflink_convert_cow(struct xfs_inode *ip, xfs_off_t offset, + xfs_off_t count); + +extern int xfs_reflink_cancel_cow_blocks(struct xfs_inode *ip, + struct xfs_trans **tpp, xfs_fileoff_t offset_fsb, + xfs_fileoff_t end_fsb, bool cancel_real); +extern int xfs_reflink_cancel_cow_range(struct xfs_inode *ip, xfs_off_t offset, + xfs_off_t count, bool cancel_real); +extern int xfs_reflink_end_cow(struct xfs_inode *ip, xfs_off_t offset, + xfs_off_t count); +extern int xfs_reflink_recover_cow(struct xfs_mount *mp); +extern loff_t xfs_reflink_remap_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, loff_t len, + unsigned int remap_flags); +extern int xfs_reflink_inode_has_shared_extents(struct xfs_trans *tp, + struct xfs_inode *ip, bool *has_shared); +extern int xfs_reflink_clear_inode_flag(struct xfs_inode *ip, + struct xfs_trans **tpp); +extern int xfs_reflink_unshare(struct xfs_inode *ip, xfs_off_t offset, + xfs_off_t len); +extern int xfs_reflink_remap_prep(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, loff_t *len, + unsigned int remap_flags); +extern int xfs_reflink_remap_blocks(struct xfs_inode *src, loff_t pos_in, + struct xfs_inode *dest, loff_t pos_out, loff_t remap_len, + loff_t *remapped); +extern int xfs_reflink_update_dest(struct xfs_inode *dest, xfs_off_t newlen, + xfs_extlen_t cowextsize, unsigned int remap_flags); + +#endif /* __XFS_REFLINK_H */ |