@@ -77,6 +77,11 @@ xfs_bui_item_size(
*nbytes += xfs_bui_log_format_sizeof(buip->bui_format.bui_nextents);
}
+unsigned int xfs_bui_log_space(unsigned int nr)
+{
+ return xlog_item_space(1, xfs_bui_log_format_sizeof(nr));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given bui log item. We use only 1 iovec, and we point that
@@ -168,6 +173,11 @@ xfs_bud_item_size(
*nbytes += sizeof(struct xfs_bud_log_format);
}
+unsigned int xfs_bud_log_space(void)
+{
+ return xlog_item_space(1, sizeof(struct xfs_bud_log_format));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given bud log item. We use only 1 iovec, and we point that
@@ -72,4 +72,7 @@ struct xfs_bmap_intent;
void xfs_bmap_defer_add(struct xfs_trans *tp, struct xfs_bmap_intent *bi);
+unsigned int xfs_bui_log_space(unsigned int nr);
+unsigned int xfs_bud_log_space(void);
+
#endif /* __XFS_BMAP_ITEM_H__ */
@@ -103,6 +103,25 @@ xfs_buf_item_size_segment(
return;
}
+/*
+ * Compute the worst case log item overhead for an invalidated buffer with the
+ * given map count and block size.
+ */
+unsigned int
+xfs_buf_inval_log_space(
+ unsigned int map_count,
+ unsigned int blocksize)
+{
+ unsigned int chunks = DIV_ROUND_UP(blocksize, XFS_BLF_CHUNK);
+ unsigned int bitmap_size = DIV_ROUND_UP(chunks, NBWORD);
+ unsigned int ret =
+ offsetof(struct xfs_buf_log_format, blf_data_map) +
+ (bitmap_size * sizeof_field(struct xfs_buf_log_format,
+ blf_data_map[0]));
+
+ return ret * map_count;
+}
+
/*
* Return the number of log iovecs and space needed to log the given buf log
* item.
@@ -64,6 +64,9 @@ static inline void xfs_buf_dquot_iodone(struct xfs_buf *bp)
void xfs_buf_iodone(struct xfs_buf *);
bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec);
+unsigned int xfs_buf_inval_log_space(unsigned int map_count,
+ unsigned int blocksize);
+
extern struct kmem_cache *xfs_buf_item_cache;
#endif /* __XFS_BUF_ITEM_H__ */
@@ -83,6 +83,11 @@ xfs_efi_item_size(
*nbytes += xfs_efi_log_format_sizeof(efip->efi_format.efi_nextents);
}
+unsigned int xfs_efi_log_space(unsigned int nr)
+{
+ return xlog_item_space(1, xfs_efi_log_format_sizeof(nr));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given efi log item. We use only 1 iovec, and we point that
@@ -254,6 +259,11 @@ xfs_efd_item_size(
*nbytes += xfs_efd_log_format_sizeof(efdp->efd_format.efd_nextents);
}
+unsigned int xfs_efd_log_space(unsigned int nr)
+{
+ return xlog_item_space(1, xfs_efd_log_format_sizeof(nr));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given efd log item. We use only 1 iovec, and we point that
@@ -94,4 +94,7 @@ void xfs_extent_free_defer_add(struct xfs_trans *tp,
struct xfs_extent_free_item *xefi,
struct xfs_defer_pending **dfpp);
+unsigned int xfs_efi_log_space(unsigned int nr);
+unsigned int xfs_efd_log_space(unsigned int nr);
+
#endif /* __XFS_EXTFREE_ITEM_H__ */
@@ -309,9 +309,7 @@ xlog_cil_alloc_shadow_bufs(
* Then round nbytes up to 64-bit alignment so that the initial
* buffer alignment is easy to calculate and verify.
*/
- nbytes += niovecs *
- (sizeof(uint64_t) + sizeof(struct xlog_op_header));
- nbytes = round_up(nbytes, sizeof(uint64_t));
+ nbytes = xlog_item_space(niovecs, nbytes);
/*
* The data buffer needs to start 64-bit aligned, so round up
@@ -698,4 +698,17 @@ xlog_kvmalloc(
return p;
}
+/*
+ * Given a count of iovecs and space for a log item, compute the space we need
+ * in the log to store that data plus the log headers.
+ */
+static inline unsigned int
+xlog_item_space(
+ unsigned int niovecs,
+ unsigned int nbytes)
+{
+ nbytes += niovecs * (sizeof(uint64_t) + sizeof(struct xlog_op_header));
+ return round_up(nbytes, sizeof(uint64_t));
+}
+
#endif /* __XFS_LOG_PRIV_H__ */
@@ -78,6 +78,11 @@ xfs_cui_item_size(
*nbytes += xfs_cui_log_format_sizeof(cuip->cui_format.cui_nextents);
}
+unsigned int xfs_cui_log_space(unsigned int nr)
+{
+ return xlog_item_space(1, xfs_cui_log_format_sizeof(nr));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given cui log item. We use only 1 iovec, and we point that
@@ -179,6 +184,11 @@ xfs_cud_item_size(
*nbytes += sizeof(struct xfs_cud_log_format);
}
+unsigned int xfs_cud_log_space(void)
+{
+ return xlog_item_space(1, sizeof(struct xfs_cud_log_format));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given cud log item. We use only 1 iovec, and we point that
@@ -76,4 +76,7 @@ struct xfs_refcount_intent;
void xfs_refcount_defer_add(struct xfs_trans *tp,
struct xfs_refcount_intent *ri);
+unsigned int xfs_cui_log_space(unsigned int nr);
+unsigned int xfs_cud_log_space(void);
+
#endif /* __XFS_REFCOUNT_ITEM_H__ */
@@ -77,6 +77,11 @@ xfs_rui_item_size(
*nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents);
}
+unsigned int xfs_rui_log_space(unsigned int nr)
+{
+ return xlog_item_space(1, xfs_rui_log_format_sizeof(nr));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given rui log item. We use only 1 iovec, and we point that
@@ -180,6 +185,11 @@ xfs_rud_item_size(
*nbytes += sizeof(struct xfs_rud_log_format);
}
+unsigned int xfs_rud_log_space(void)
+{
+ return xlog_item_space(1, sizeof(struct xfs_rud_log_format));
+}
+
/*
* This is called to fill in the vector of log iovecs for the
* given rud log item. We use only 1 iovec, and we point that
@@ -75,4 +75,7 @@ struct xfs_rmap_intent;
void xfs_rmap_defer_add(struct xfs_trans *tp, struct xfs_rmap_intent *ri);
+unsigned int xfs_rui_log_space(unsigned int nr);
+unsigned int xfs_rud_log_space(void);
+
#endif /* __XFS_RMAP_ITEM_H__ */