Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 105 insertions, 0 deletions

diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h
new file mode 100644
index 000000000..0554b9d77
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_trans_resv.h
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ */
+#ifndef	__XFS_TRANS_RESV_H__
+#define	__XFS_TRANS_RESV_H__
+
+struct xfs_mount;
+
+/*
+ * structure for maintaining pre-calculated transaction reservations.
+ */
+struct xfs_trans_res {
+	uint	tr_logres;	/* log space unit in bytes per log ticket */
+	int	tr_logcount;	/* number of log operations per log ticket */
+	int	tr_logflags;	/* log flags, currently only used for indicating
+				 * a reservation request is permanent or not */
+};
+
+struct xfs_trans_resv {
+	struct xfs_trans_res	tr_write;	/* extent alloc trans */
+	struct xfs_trans_res	tr_itruncate;	/* truncate trans */
+	struct xfs_trans_res	tr_rename;	/* rename trans */
+	struct xfs_trans_res	tr_link;	/* link trans */
+	struct xfs_trans_res	tr_remove;	/* unlink trans */
+	struct xfs_trans_res	tr_symlink;	/* symlink trans */
+	struct xfs_trans_res	tr_create;	/* create trans */
+	struct xfs_trans_res	tr_create_tmpfile; /* create O_TMPFILE trans */
+	struct xfs_trans_res	tr_mkdir;	/* mkdir trans */
+	struct xfs_trans_res	tr_ifree;	/* inode free trans */
+	struct xfs_trans_res	tr_ichange;	/* inode update trans */
+	struct xfs_trans_res	tr_growdata;	/* fs data section grow trans */
+	struct xfs_trans_res	tr_addafork;	/* add inode attr fork trans */
+	struct xfs_trans_res	tr_writeid;	/* write setuid/setgid file */
+	struct xfs_trans_res	tr_attrinval;	/* attr fork buffer
+						 * invalidation */
+	struct xfs_trans_res	tr_attrsetm;	/* set/create an attribute at
+						 * mount time */
+	struct xfs_trans_res	tr_attrsetrt;	/* set/create an attribute at
+						 * runtime */
+	struct xfs_trans_res	tr_attrrm;	/* remove an attribute */
+	struct xfs_trans_res	tr_clearagi;	/* clear agi unlinked bucket */
+	struct xfs_trans_res	tr_growrtalloc;	/* grow realtime allocations */
+	struct xfs_trans_res	tr_growrtzero;	/* grow realtime zeroing */
+	struct xfs_trans_res	tr_growrtfree;	/* grow realtime freeing */
+	struct xfs_trans_res	tr_qm_setqlim;	/* adjust quota limits */
+	struct xfs_trans_res	tr_qm_dqalloc;	/* allocate quota on disk */
+	struct xfs_trans_res	tr_sb;		/* modify superblock */
+	struct xfs_trans_res	tr_fsyncts;	/* update timestamps on fsync */
+};
+
+/* shorthand way of accessing reservation structure */
+#define M_RES(mp)	(&(mp)->m_resv)
+
+/*
+ * Per-directory log reservation for any directory change.
+ * dir blocks: (1 btree block per level + data block + free block) * dblock size
+ * bmap btree: (levels + 2) * max depth * block size
+ * v2 directory blocks can be fragmented below the dirblksize down to the fsb
+ * size, so account for that in the DAENTER macros.
+ */
+#define	XFS_DIROP_LOG_RES(mp)	\
+	(XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
+	 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
+#define	XFS_DIROP_LOG_COUNT(mp)	\
+	(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
+	 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
+
+/*
+ * Various log count values.
+ */
+#define	XFS_DEFAULT_LOG_COUNT		1
+#define	XFS_DEFAULT_PERM_LOG_COUNT	2
+#define	XFS_ITRUNCATE_LOG_COUNT		2
+#define XFS_INACTIVE_LOG_COUNT		2
+#define	XFS_CREATE_LOG_COUNT		2
+#define	XFS_CREATE_TMPFILE_LOG_COUNT	2
+#define	XFS_MKDIR_LOG_COUNT		3
+#define	XFS_SYMLINK_LOG_COUNT		3
+#define	XFS_REMOVE_LOG_COUNT		2
+#define	XFS_LINK_LOG_COUNT		2
+#define	XFS_RENAME_LOG_COUNT		2
+#define	XFS_WRITE_LOG_COUNT		2
+#define	XFS_ADDAFORK_LOG_COUNT		2
+#define	XFS_ATTRINVAL_LOG_COUNT		1
+#define	XFS_ATTRSET_LOG_COUNT		3
+#define	XFS_ATTRRM_LOG_COUNT		3
+
+/*
+ * Original log operation counts were overestimated in the early days of
+ * reflink.  These are retained here purely for minimum log size calculations
+ * and must not be used for runtime reservations.
+ */
+#define	XFS_ITRUNCATE_LOG_COUNT_REFLINK	8
+#define	XFS_WRITE_LOG_COUNT_REFLINK	8
+
+void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
+uint xfs_allocfree_block_count(struct xfs_mount *mp, uint num_ops);
+
+unsigned int xfs_calc_itruncate_reservation_minlogsize(struct xfs_mount *mp);
+unsigned int xfs_calc_write_reservation_minlogsize(struct xfs_mount *mp);
+unsigned int xfs_calc_qm_dqalloc_reservation_minlogsize(struct xfs_mount *mp);
+
+#endif	/* __XFS_TRANS_RESV_H__ */