From: Dave Chinner <dchinner@xxxxxxxxxx>
The log space reservation calculation code has been separated from
the core transaction code in kernelspace. THi smeans we can add it
here in preparation for removing xfs_trans.c to further reduce the
differences between kernel and usrspace files.
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
include/Makefile | 2 +-
include/libxfs.h | 27 +-
include/xfs_trans.h | 114 +-------
include/xfs_trans_resv.h | 135 +++++++++
libxfs/Makefile | 2 +-
libxfs/xfs.h | 2 +
libxfs/xfs_trans.c | 576 +--------------------------------------
libxfs/xfs_trans_resv.c | 677 ++++++++++++++++++++++++++++++++++++++++++++++
mkfs/maxtrres.c | 8 +-
9 files changed, 845 insertions(+), 698 deletions(-)
create mode 100644 include/xfs_trans_resv.h
create mode 100644 libxfs/xfs_trans_resv.c
diff --git a/include/Makefile b/include/Makefile
index a69df5b..674ee06 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -29,7 +29,7 @@ QAHFILES = libxfs.h libxlog.h \
xfs_icreate_item.h xfs_inode.h xfs_inode_item.h xfs_inum.h \
xfs_log.h xfs_log_priv.h xfs_log_recover.h xfs_metadump.h \
xfs_quota.h xfs_rtalloc.h xfs_sb.h xfs_symlink.h \
- xfs_trace.h xfs_trans.h xfs_trans_space.h xfs_dfrag.h
+ xfs_trace.h xfs_trans.h xfs_trans_resv.h xfs_trans_space.h xfs_dfrag.h
HFILES = handle.h jdm.h xqm.h xfs.h xfs_fs.h xfs_types.h
HFILES += $(PKG_PLATFORM).h
diff --git a/include/libxfs.h b/include/libxfs.h
index ee69cac..e57e2fd 100644
--- a/include/libxfs.h
+++ b/include/libxfs.h
@@ -202,7 +202,7 @@ typedef struct xfs_mount {
int m_ialloc_blks; /* blocks in inode allocation */
int m_litino; /* size of inode union area */
int m_inoalign_mask;/* mask sb_inoalignmt if used */
- struct xfs_trans_reservations m_reservations;/* precomputed res values */
+ struct xfs_trans_resv m_reservations;/* precomputed res values */
__uint64_t m_maxicount; /* maximum inode count */
int m_dalign; /* stripe unit */
int m_swidth; /* stripe width */
@@ -407,6 +407,11 @@ extern int libxfs_ihash_size;
extern void libxfs_iomove (xfs_buf_t *, uint, int, void *, int);
+#include <xfs/xfs_quota.h>
+#include <xfs/xfs_trans_space.h>
+#include <xfs/xfs_log.h>
+#include <xfs/xfs_log_priv.h>
+
/*
* Transaction interface
*/
@@ -436,6 +441,19 @@ typedef struct xfs_buf_log_item {
xfs_buf_log_format_t bli_format; /* in-log header */
} xfs_buf_log_item_t;
+typedef struct xfs_dq_logitem {
+ xfs_log_item_t qli_item; /* common portion */
+ struct xfs_dquot *qli_dquot; /* dquot ptr */
+ xfs_lsn_t qli_flush_lsn; /* lsn at last flush */
+ xfs_dq_logformat_t qli_format; /* logged structure */
+} xfs_dq_logitem_t;
+
+typedef struct xfs_qoff_logitem {
+ xfs_log_item_t qql_item; /* common portion */
+ struct xfs_qoff_logitem *qql_start_lip; /* qoff-start logitem, if any */
+ xfs_qoff_logformat_t qql_format; /* logged structure */
+} xfs_qoff_logitem_t;
+
typedef struct xfs_trans {
unsigned int t_type; /* transaction type */
unsigned int t_log_res; /* amt of log space resvd */
@@ -613,10 +631,6 @@ extern unsigned long libxfs_physmem(void); /* in kilobytes */
#include <xfs/xfs_attr_leaf.h>
#include <xfs/xfs_attr_remote.h>
-#include <xfs/xfs_quota.h>
-#include <xfs/xfs_trans_space.h>
-#include <xfs/xfs_log.h>
-#include <xfs/xfs_log_priv.h>
#define XFS_INOBT_IS_FREE_DISK(rp,i) \
((be64_to_cpu((rp)->ir_free) & XFS_INOBT_MASK(i)) != 0)
@@ -698,6 +712,9 @@ void xfs_dinode_from_disk(struct xfs_icdinode *,
#define libxfs_symlink_blocks xfs_symlink_blocks
#define libxfs_symlink_hdr_ok xfs_symlink_hdr_ok
+/* xfs_trans_resv.h */
+#define libxfs_trans_resv_calc xfs_trans_resv_calc
+
/* xfs_rtalloc.c */
int libxfs_rtfree_extent(struct xfs_trans *, xfs_rtblock_t, xfs_extlen_t);
diff --git a/include/xfs_trans.h b/include/xfs_trans.h
index c9019c6..45d0ff2 100644
--- a/include/xfs_trans.h
+++ b/include/xfs_trans.h
@@ -20,6 +20,8 @@
struct xfs_log_item;
+#include "xfs_trans_resv.h"
+
/*
* This is the structure written in the log at the head of
* every transaction. It identifies the type and id of the
@@ -210,118 +212,6 @@ struct xfs_log_item_desc {
#define XFS_TRANS_SB_REXTSLOG 0x00002000
/*
- * structure for maintaining pre-calculated transaction reservations.
- */
-struct xfs_trans_reservations {
- uint tr_write; /* extent alloc trans */
- uint tr_itruncate; /* truncate trans */
- uint tr_rename; /* rename trans */
- uint tr_link; /* link trans */
- uint tr_remove; /* unlink trans */
- uint tr_symlink; /* symlink trans */
- uint tr_create; /* create trans */
- uint tr_mkdir; /* mkdir trans */
- uint tr_ifree; /* inode free trans */
- uint tr_ichange; /* inode update trans */
- uint tr_growdata; /* fs data section grow trans */
- uint tr_swrite; /* sync write inode trans */
- uint tr_addafork; /* cvt inode to attributed trans */
- uint tr_writeid; /* write setuid/setgid file */
- uint tr_attrinval; /* attr fork buffer invalidation */
- uint tr_attrsetm; /* set/create an attribute at mount time */
- uint tr_attrsetrt; /* set/create an attribute at runtime */
- uint tr_attrrm; /* remove an attribute */
- uint tr_clearagi; /* clear bad agi unlinked ino bucket */
- uint tr_growrtalloc; /* grow realtime allocations */
- uint tr_growrtzero; /* grow realtime zeroing */
- uint tr_growrtfree; /* grow realtime freeing */
- uint tr_qm_sbchange; /* change quota flags */
- uint tr_qm_setqlim; /* adjust quota limits */
- uint tr_qm_dqalloc; /* allocate quota on disk */
- uint tr_qm_quotaoff; /* turn quota off */
- uint tr_qm_equotaoff;/* end of turn quota off */
- uint tr_sb; /* modify superblock */
-};
-
-/*
- * Per-extent log reservation for the allocation btree changes
- * involved in freeing or allocating an extent.
- * 2 trees * (2 blocks/level * max depth - 1) * block size
- */
-#define XFS_ALLOCFREE_LOG_RES(mp,nx) \
- ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
-#define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
- ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
-
-/*
- * 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)
-
-
-#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
-#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
-#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
-#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
-#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
-#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
-#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
-#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
-#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
-#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
-#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
-#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
-#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
-#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
-#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
-/*
- * Logging the inode timestamps on an fsync -- same as SWRITE
- * as long as SWRITE logs the entire inode core
- */
-#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
-#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
-#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
-#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
-#define XFS_ATTRSETM_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetm)
-#define XFS_ATTRSETRT_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetrt)
-#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
-#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
-#define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange)
-#define XFS_QM_SETQLIM_LOG_RES(mp) ((mp)->m_reservations.tr_qm_setqlim)
-#define XFS_QM_DQALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_qm_dqalloc)
-#define XFS_QM_QUOTAOFF_LOG_RES(mp) ((mp)->m_reservations.tr_qm_quotaoff)
-#define XFS_QM_QUOTAOFF_END_LOG_RES(mp) ((mp)->m_reservations.tr_qm_equotaoff)
-#define XFS_SB_LOG_RES(mp) ((mp)->m_reservations.tr_sb)
-
-/*
- * 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_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
-
-/*
* Here we centralize the specification of XFS meta-data buffer
* reference count values. This determine how hard the buffer
* cache tries to hold onto the buffer.
diff --git a/include/xfs_trans_resv.h b/include/xfs_trans_resv.h
new file mode 100644
index 0000000..0936f93
--- /dev/null
+++ b/include/xfs_trans_resv.h
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#ifndef __XFS_TRANS_RESV_H__
+#define __XFS_TRANS_RESV_H__
+
+/*
+ * structure for maintaining pre-calculated transaction reservations.
+ */
+struct xfs_trans_resv {
+ uint tr_write; /* extent alloc trans */
+ uint tr_itruncate; /* truncate trans */
+ uint tr_rename; /* rename trans */
+ uint tr_link; /* link trans */
+ uint tr_remove; /* unlink trans */
+ uint tr_symlink; /* symlink trans */
+ uint tr_create; /* create trans */
+ uint tr_mkdir; /* mkdir trans */
+ uint tr_ifree; /* inode free trans */
+ uint tr_ichange; /* inode update trans */
+ uint tr_growdata; /* fs data section grow trans */
+ uint tr_swrite; /* sync write inode trans */
+ uint tr_addafork; /* cvt inode to attributed trans */
+ uint tr_writeid; /* write setuid/setgid file */
+ uint tr_attrinval; /* attr fork buffer invalidation */
+ uint tr_attrsetm; /* set/create an attribute at mount time */
+ uint tr_attrsetrt; /* set/create an attribute at runtime */
+ uint tr_attrrm; /* remove an attribute */
+ uint tr_clearagi; /* clear bad agi unlinked ino bucket */
+ uint tr_growrtalloc; /* grow realtime allocations */
+ uint tr_growrtzero; /* grow realtime zeroing */
+ uint tr_growrtfree; /* grow realtime freeing */
+ uint tr_qm_sbchange; /* change quota flags */
+ uint tr_qm_setqlim; /* adjust quota limits */
+ uint tr_qm_dqalloc; /* allocate quota on disk */
+ uint tr_qm_quotaoff; /* turn quota off */
+ uint tr_qm_equotaoff;/* end of turn quota off */
+ uint tr_sb; /* modify superblock */
+};
+
+/*
+ * Per-extent log reservation for the allocation btree changes
+ * involved in freeing or allocating an extent.
+ * 2 trees * (2 blocks/level * max depth - 1) * block size
+ */
+#define XFS_ALLOCFREE_LOG_RES(mp,nx) \
+ ((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
+#define XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
+ ((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
+
+/*
+ * 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)
+
+
+#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
+#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
+#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
+#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
+#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
+#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
+#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
+#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
+#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
+#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
+#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
+#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
+#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
+#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
+#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
+/*
+ * Logging the inode timestamps on an fsync -- same as SWRITE
+ * as long as SWRITE logs the entire inode core
+ */
+#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
+#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
+#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
+#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
+#define XFS_ATTRSETM_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetm)
+#define XFS_ATTRSETRT_LOG_RES(mp) ((mp)->m_reservations.tr_attrsetrt)
+#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
+#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
+#define XFS_QM_SBCHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_qm_sbchange)
+#define XFS_QM_SETQLIM_LOG_RES(mp) ((mp)->m_reservations.tr_qm_setqlim)
+#define XFS_QM_DQALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_qm_dqalloc)
+#define XFS_QM_QUOTAOFF_LOG_RES(mp) ((mp)->m_reservations.tr_qm_quotaoff)
+#define XFS_QM_QUOTAOFF_END_LOG_RES(mp) ((mp)->m_reservations.tr_qm_equotaoff)
+#define XFS_SB_LOG_RES(mp) ((mp)->m_reservations.tr_sb)
+
+/*
+ * 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_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
+
+void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp);
+
+#endif /* __XFS_TRANS_RESV_H__ */
diff --git a/libxfs/Makefile b/libxfs/Makefile
index d6ad568..c4836ab 100644
--- a/libxfs/Makefile
+++ b/libxfs/Makefile
@@ -17,7 +17,7 @@ CFILES = cache.c init.c kmem.c logitem.c radix-tree.c rdwr.c trans.c util.c \
xfs_dir2.c xfs_dir2_leaf.c xfs_attr_leaf.c xfs_dir2_block.c \
xfs_dir2_node.c xfs_dir2_data.c xfs_dir2_sf.c xfs_bmap.c \
xfs_sb.c xfs_rtalloc.c xfs_trans.c xfs_attr.c xfs_attr_remote.c \
- crc32.c xfs_symlink.c
+ crc32.c xfs_symlink.c xfs_trans_resv.c
CFILES += $(PKG_PLATFORM).c
PCFILES = darwin.c freebsd.c irix.c linux.c
diff --git a/libxfs/xfs.h b/libxfs/xfs.h
index baea002..efb246a 100644
--- a/libxfs/xfs.h
+++ b/libxfs/xfs.h
@@ -100,6 +100,8 @@ typedef __uint32_t inst_t; /* an instruction */
#define __return_address __builtin_return_address(0)
#endif
+#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
+
/* miscellaneous kernel routines not in user space */
#define down_read(a) ((void) 0)
#define up_read(a) ((void) 0)
diff --git a/libxfs/xfs_trans.c b/libxfs/xfs_trans.c
index 95fb630..2daf545 100644
--- a/libxfs/xfs_trans.c
+++ b/libxfs/xfs_trans.c
@@ -23,557 +23,6 @@ kmem_zone_t *xfs_trans_zone;
kmem_zone_t *xfs_log_item_desc_zone;
/*
- * A buffer has a format structure overhead in the log in addition
- * to the data, so we need to take this into account when reserving
- * space in a transaction for a buffer. Round the space required up
- * to a multiple of 128 bytes so that we don't change the historical
- * reservation that has been used for this overhead.
- */
-STATIC uint
-xfs_buf_log_overhead(void)
-{
- return round_up(sizeof(struct xlog_op_header) +
- sizeof(struct xfs_buf_log_format), 128);
-}
-
-/*
- * Calculate out transaction log reservation per item in bytes.
- *
- * The nbufs argument is used to indicate the number of items that
- * will be changed in a transaction. size is used to tell how many
- * bytes should be reserved per item.
- */
-STATIC uint
-xfs_calc_buf_res(
- uint nbufs,
- uint size)
-{
- return nbufs * (size + xfs_buf_log_overhead());
-}
-
-/*
- * Various log reservation values.
- *
- * These are based on the size of the file system block because that is what
- * most transactions manipulate. Each adds in an additional 128 bytes per
- * item logged to try to account for the overhead of the transaction mechanism.
- *
- * Note: Most of the reservations underestimate the number of allocation
- * groups into which they could free extents in the xfs_bmap_finish() call.
- * This is because the number in the worst case is quite high and quite
- * unusual. In order to fix this we need to change xfs_bmap_finish() to free
- * extents in only a single AG at a time. This will require changes to the
- * EFI code as well, however, so that the EFI for the extents not freed is
- * logged again in each transaction. See SGI PV #261917.
- *
- * Reservation functions here avoid a huge stack in xfs_trans_init due to
- * register overflow from temporaries in the calculations.
- */
-
-
-/*
- * In a write transaction we can allocate a maximum of 2
- * extents. This gives:
- * the inode getting the new extents: inode size
- * the inode's bmap btree: max depth * block size
- * the agfs of the ags from which the extents are allocated: 2 * sector
- * the superblock free block counter: sector size
- * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
- * And the bmap_finish transaction can free bmap blocks in a join:
- * the agfs of the ags containing the blocks: 2 * sector size
- * the agfls of the ags containing the blocks: 2 * sector size
- * the super block free block counter: sector size
- * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_write_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
- XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * In truncating a file we free up to two extents at once. We can modify:
- * the inode being truncated: inode size
- * the inode's bmap btree: (max depth + 1) * block size
- * And the bmap_finish transaction can free the blocks and bmap blocks:
- * the agf for each of the ags: 4 * sector size
- * the agfl for each of the ags: 4 * sector size
- * the super block to reflect the freed blocks: sector size
- * worst case split in allocation btrees per extent assuming 4 extents:
- * 4 exts * 2 trees * (2 * max depth - 1) * block size
- * the inode btree: max depth * blocksize
- * the allocation btrees: 2 trees * (max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_itruncate_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1,
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 4),
- XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(5, 0) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
- mp->m_in_maxlevels, 0)));
-}
-
-/*
- * In renaming a files we can modify:
- * the four inodes involved: 4 * inode size
- * the two directory btrees: 2 * (max depth + v2) * dir block size
- * the two directory bmap btrees: 2 * max depth * block size
- * And the bmap_finish transaction can free dir and bmap blocks (two sets
- * of bmap blocks) giving:
- * the agf for the ags in which the blocks live: 3 * sector size
- * the agfl for the ags in which the blocks live: 3 * sector size
- * the superblock for the free block count: sector size
- * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_rename_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(4, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(2 * XFS_DIROP_LOG_COUNT(mp),
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(7, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 3),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * For creating a link to an inode:
- * the parent directory inode: inode size
- * the linked inode: inode size
- * the directory btree could split: (max depth + v2) * dir block size
- * the directory bmap btree could join or split: (max depth + v2) * blocksize
- * And the bmap_finish transaction can free some bmap blocks giving:
- * the agf for the ag in which the blocks live: sector size
- * the agfl for the ag in which the blocks live: sector size
- * the superblock for the free block count: sector size
- * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_link_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * For removing a directory entry we can modify:
- * the parent directory inode: inode size
- * the removed inode: inode size
- * the directory btree could join: (max depth + v2) * dir block size
- * the directory bmap btree could join or split: (max depth + v2) * blocksize
- * And the bmap_finish transaction can free the dir and bmap blocks giving:
- * the agf for the ag in which the blocks live: 2 * sector size
- * the agfl for the ag in which the blocks live: 2 * sector size
- * the superblock for the free block count: sector size
- * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_remove_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * For create, break it in to the two cases that the transaction
- * covers. We start with the modify case - allocation done by modification
- * of the state of existing inodes - and the allocation case.
- */
-
-/*
- * For create we can modify:
- * the parent directory inode: inode size
- * the new inode: inode size
- * the inode btree entry: block size
- * the superblock for the nlink flag: sector size
- * the directory btree: (max depth + v2) * dir block size
- * the directory inode's bmap btree: (max depth + v2) * block size
- */
-STATIC uint
-xfs_calc_create_resv_modify(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
- (uint)XFS_FSB_TO_B(mp, 1) +
- xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp), XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * For create we can allocate some inodes giving:
- * the agi and agf of the ag getting the new inodes: 2 * sectorsize
- * the superblock for the nlink flag: sector size
- * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
- * the inode btree: max depth * blocksize
- * the allocation btrees: 2 trees * (max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_create_resv_alloc(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
- mp->m_sb.sb_sectsize +
- xfs_calc_buf_res(XFS_IALLOC_BLOCKS(mp), XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-STATIC uint
-__xfs_calc_create_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX(xfs_calc_create_resv_alloc(mp),
- xfs_calc_create_resv_modify(mp));
-}
-
-/*
- * For icreate we can allocate some inodes giving:
- * the agi and agf of the ag getting the new inodes: 2 * sectorsize
- * the superblock for the nlink flag: sector size
- * the inode btree: max depth * blocksize
- * the allocation btrees: 2 trees * (max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_icreate_resv_alloc(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
- mp->m_sb.sb_sectsize +
- xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-STATIC uint
-xfs_calc_icreate_reservation(xfs_mount_t *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX(xfs_calc_icreate_resv_alloc(mp),
- xfs_calc_create_resv_modify(mp));
-}
-
-STATIC uint
-xfs_calc_create_reservation(
- struct xfs_mount *mp)
-{
- if (xfs_sb_version_hascrc(&mp->m_sb))
- return xfs_calc_icreate_reservation(mp);
- return __xfs_calc_create_reservation(mp);
-
-}
-
-/*
- * Making a new directory is the same as creating a new file.
- */
-STATIC uint
-xfs_calc_mkdir_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_create_reservation(mp);
-}
-
-
-/*
- * Making a new symplink is the same as creating a new file, but
- * with the added blocks for remote symlink data which can be up to 1kB in
- * length (MAXPATHLEN).
- */
-STATIC uint
-xfs_calc_symlink_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_create_reservation(mp) +
- xfs_calc_buf_res(1, MAXPATHLEN);
-}
-
-/*
- * In freeing an inode we can modify:
- * the inode being freed: inode size
- * the super block free inode counter: sector size
- * the agi hash list and counters: sector size
- * the inode btree entry: block size
- * the on disk inode before ours in the agi hash list: inode cluster size
- * the inode btree: max depth * blocksize
- * the allocation btrees: 2 trees * (max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_ifree_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(1, XFS_FSB_TO_B(mp, 1)) +
- MAX((__uint16_t)XFS_FSB_TO_B(mp, 1),
- XFS_INODE_CLUSTER_SIZE(mp)) +
- xfs_calc_buf_res(1, 0) +
- xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
- mp->m_in_maxlevels, 0) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * When only changing the inode we log the inode and possibly the superblock
- * We also add a bit of slop for the transaction stuff.
- */
-STATIC uint
-xfs_calc_ichange_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- mp->m_sb.sb_inodesize +
- mp->m_sb.sb_sectsize +
- 512;
-
-}
-
-/*
- * Growing the data section of the filesystem.
- * superblock
- * agi and agf
- * allocation btrees
- */
-STATIC uint
-xfs_calc_growdata_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * Growing the rt section of the filesystem.
- * In the first set of transactions (ALLOC) we allocate space to the
- * bitmap or summary files.
- * superblock: sector size
- * agf of the ag from which the extent is allocated: sector size
- * bmap btree for bitmap/summary inode: max depth * blocksize
- * bitmap/summary inode: inode size
- * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
- */
-STATIC uint
-xfs_calc_growrtalloc_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
- XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * Growing the rt section of the filesystem.
- * In the second set of transactions (ZERO) we zero the new metadata blocks.
- * one bitmap/summary block: blocksize
- */
-STATIC uint
-xfs_calc_growrtzero_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_blocksize);
-}
-
-/*
- * Growing the rt section of the filesystem.
- * In the third set of transactions (FREE) we update metadata without
- * allocating any new blocks.
- * superblock: sector size
- * bitmap inode: inode size
- * summary inode: inode size
- * one bitmap block: blocksize
- * summary blocks: new summary size
- */
-STATIC uint
-xfs_calc_growrtfree_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(1, mp->m_sb.sb_blocksize) +
- xfs_calc_buf_res(1, mp->m_rsumsize);
-}
-
-/*
- * Logging the inode modification timestamp on a synchronous write.
- * inode
- */
-STATIC uint
-xfs_calc_swrite_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_inodesize);
-}
-
-/*
- * Logging the inode mode bits when writing a setuid/setgid file
- * inode
- */
-STATIC uint
-xfs_calc_writeid_reservation(xfs_mount_t *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_inodesize);
-}
-
-/*
- * Converting the inode from non-attributed to attributed.
- * the inode being converted: inode size
- * agf block and superblock (for block allocation)
- * the new block (directory sized)
- * bmap blocks for the new directory block
- * allocation btrees
- */
-STATIC uint
-xfs_calc_addafork_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(1, mp->m_dirblksize) +
- xfs_calc_buf_res(XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1,
- XFS_FSB_TO_B(mp, 1)) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
- XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * Removing the attribute fork of a file
- * the inode being truncated: inode size
- * the inode's bmap btree: max depth * block size
- * And the bmap_finish transaction can free the blocks and bmap blocks:
- * the agf for each of the ags: 4 * sector size
- * the agfl for each of the ags: 4 * sector size
- * the super block to reflect the freed blocks: sector size
- * worst case split in allocation btrees per extent assuming 4 extents:
- * 4 exts * 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_attrinval_reservation(
- struct xfs_mount *mp)
-{
- return MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK),
- XFS_FSB_TO_B(mp, 1))),
- (xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 4),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * Setting an attribute at mount time.
- * the inode getting the attribute
- * the superblock for allocations
- * the agfs extents are allocated from
- * the attribute btree * max depth
- * the inode allocation btree
- * Since attribute transaction space is dependent on the size of the attribute,
- * the calculation is done partially at mount time and partially at runtime(see
- * below).
- */
-STATIC uint
-xfs_calc_attrsetm_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_DA_NODE_MAXDEPTH, XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * Setting an attribute at runtime, transaction space unit per block.
- * the superblock for allocations: sector size
- * the inode bmap btree could join or split: max depth * block size
- * Since the runtime attribute transaction space is dependent on the total
- * blocks needed for the 1st bmap, here we calculate out the space unit for
- * one block so that the caller could figure out the total space according
- * to the attibute extent length in blocks by: ext * XFS_ATTRSETRT_LOG_RES(mp).
- */
-STATIC uint
-xfs_calc_attrsetrt_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK),
- XFS_FSB_TO_B(mp, 1));
-}
-
-/*
- * Removing an attribute.
- * the inode: inode size
- * the attribute btree could join: max depth * block size
- * the inode bmap btree could join or split: max depth * block size
- * And the bmap_finish transaction can free the attr blocks freed giving:
- * the agf for the ag in which the blocks live: 2 * sector size
- * the agfl for the ag in which the blocks live: 2 * sector size
- * the superblock for the free block count: sector size
- * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
- */
-STATIC uint
-xfs_calc_attrrm_reservation(
- struct xfs_mount *mp)
-{
- return XFS_DQUOT_LOGRES(mp) +
- MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
- xfs_calc_buf_res(XFS_DA_NODE_MAXDEPTH,
- XFS_FSB_TO_B(mp, 1)) +
- XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) +
- xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK), 0)),
- (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
- xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
- XFS_FSB_TO_B(mp, 1))));
-}
-
-/*
- * Clearing a bad agino number in an agi hash bucket.
- */
-STATIC uint
-xfs_calc_clear_agi_bucket_reservation(
- struct xfs_mount *mp)
-{
- return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
-}
-
-/*
* Initialize the precomputed transaction reservation values
* in the mount structure.
*/
@@ -581,30 +30,7 @@ void
xfs_trans_init(
struct xfs_mount *mp)
{
- struct xfs_trans_reservations *resp = &mp->m_reservations;
-
- resp->tr_write = xfs_calc_write_reservation(mp);
- resp->tr_itruncate = xfs_calc_itruncate_reservation(mp);
- resp->tr_rename = xfs_calc_rename_reservation(mp);
- resp->tr_link = xfs_calc_link_reservation(mp);
- resp->tr_remove = xfs_calc_remove_reservation(mp);
- resp->tr_symlink = xfs_calc_symlink_reservation(mp);
- resp->tr_create = xfs_calc_create_reservation(mp);
- resp->tr_mkdir = xfs_calc_mkdir_reservation(mp);
- resp->tr_ifree = xfs_calc_ifree_reservation(mp);
- resp->tr_ichange = xfs_calc_ichange_reservation(mp);
- resp->tr_growdata = xfs_calc_growdata_reservation(mp);
- resp->tr_swrite = xfs_calc_swrite_reservation(mp);
- resp->tr_writeid = xfs_calc_writeid_reservation(mp);
- resp->tr_addafork = xfs_calc_addafork_reservation(mp);
- resp->tr_attrinval = xfs_calc_attrinval_reservation(mp);
- resp->tr_attrsetm = xfs_calc_attrsetm_reservation(mp);
- resp->tr_attrsetrt = xfs_calc_attrsetrt_reservation(mp);
- resp->tr_attrrm = xfs_calc_attrrm_reservation(mp);
- resp->tr_clearagi = xfs_calc_clear_agi_bucket_reservation(mp);
- resp->tr_growrtalloc = xfs_calc_growrtalloc_reservation(mp);
- resp->tr_growrtzero = xfs_calc_growrtzero_reservation(mp);
- resp->tr_growrtfree = xfs_calc_growrtfree_reservation(mp);
+ xfs_trans_resv_calc(mp, &mp->m_reservations);
}
/*
diff --git a/libxfs/xfs_trans_resv.c b/libxfs/xfs_trans_resv.c
new file mode 100644
index 0000000..7a391e3
--- /dev/null
+++ b/libxfs/xfs_trans_resv.c
@@ -0,0 +1,677 @@
+/*
+ * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * Copyright (C) 2010 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <xfs.h>
+
+/*
+ * A buffer has a format structure overhead in the log in addition
+ * to the data, so we need to take this into account when reserving
+ * space in a transaction for a buffer. Round the space required up
+ * to a multiple of 128 bytes so that we don't change the historical
+ * reservation that has been used for this overhead.
+ */
+STATIC uint
+xfs_buf_log_overhead(void)
+{
+ return round_up(sizeof(struct xlog_op_header) +
+ sizeof(struct xfs_buf_log_format), 128);
+}
+
+/*
+ * Calculate out transaction log reservation per item in bytes.
+ *
+ * The nbufs argument is used to indicate the number of items that
+ * will be changed in a transaction. size is used to tell how many
+ * bytes should be reserved per item.
+ */
+STATIC uint
+xfs_calc_buf_res(
+ uint nbufs,
+ uint size)
+{
+ return nbufs * (size + xfs_buf_log_overhead());
+}
+
+/*
+ * Various log reservation values.
+ *
+ * These are based on the size of the file system block because that is what
+ * most transactions manipulate. Each adds in an additional 128 bytes per
+ * item logged to try to account for the overhead of the transaction mechanism.
+ *
+ * Note: Most of the reservations underestimate the number of allocation
+ * groups into which they could free extents in the xfs_bmap_finish() call.
+ * This is because the number in the worst case is quite high and quite
+ * unusual. In order to fix this we need to change xfs_bmap_finish() to free
+ * extents in only a single AG at a time. This will require changes to the
+ * EFI code as well, however, so that the EFI for the extents not freed is
+ * logged again in each transaction. See SGI PV #261917.
+ *
+ * Reservation functions here avoid a huge stack in xfs_trans_init due to
+ * register overflow from temporaries in the calculations.
+ */
+
+
+/*
+ * In a write transaction we can allocate a maximum of 2
+ * extents. This gives:
+ * the inode getting the new extents: inode size
+ * the inode's bmap btree: max depth * block size
+ * the agfs of the ags from which the extents are allocated: 2 * sector
+ * the superblock free block counter: sector size
+ * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ * And the bmap_finish transaction can free bmap blocks in a join:
+ * the agfs of the ags containing the blocks: 2 * sector size
+ * the agfls of the ags containing the blocks: 2 * sector size
+ * the super block free block counter: sector size
+ * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_write_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * In truncating a file we free up to two extents at once. We can modify:
+ * the inode being truncated: inode size
+ * the inode's bmap btree: (max depth + 1) * block size
+ * And the bmap_finish transaction can free the blocks and bmap blocks:
+ * the agf for each of the ags: 4 * sector size
+ * the agfl for each of the ags: 4 * sector size
+ * the super block to reflect the freed blocks: sector size
+ * worst case split in allocation btrees per extent assuming 4 extents:
+ * 4 exts * 2 trees * (2 * max depth - 1) * block size
+ * the inode btree: max depth * blocksize
+ * the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_itruncate_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1,
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 4),
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(5, 0) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
+ mp->m_in_maxlevels, 0)));
+}
+
+/*
+ * In renaming a files we can modify:
+ * the four inodes involved: 4 * inode size
+ * the two directory btrees: 2 * (max depth + v2) * dir block size
+ * the two directory bmap btrees: 2 * max depth * block size
+ * And the bmap_finish transaction can free dir and bmap blocks (two sets
+ * of bmap blocks) giving:
+ * the agf for the ags in which the blocks live: 3 * sector size
+ * the agfl for the ags in which the blocks live: 3 * sector size
+ * the superblock for the free block count: sector size
+ * the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_rename_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(4, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(2 * XFS_DIROP_LOG_COUNT(mp),
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(7, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 3),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * For creating a link to an inode:
+ * the parent directory inode: inode size
+ * the linked inode: inode size
+ * the directory btree could split: (max depth + v2) * dir block size
+ * the directory bmap btree could join or split: (max depth + v2) * blocksize
+ * And the bmap_finish transaction can free some bmap blocks giving:
+ * the agf for the ag in which the blocks live: sector size
+ * the agfl for the ag in which the blocks live: sector size
+ * the superblock for the free block count: sector size
+ * the allocation btrees: 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_link_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * For removing a directory entry we can modify:
+ * the parent directory inode: inode size
+ * the removed inode: inode size
+ * the directory btree could join: (max depth + v2) * dir block size
+ * the directory bmap btree could join or split: (max depth + v2) * blocksize
+ * And the bmap_finish transaction can free the dir and bmap blocks giving:
+ * the agf for the ag in which the blocks live: 2 * sector size
+ * the agfl for the ag in which the blocks live: 2 * sector size
+ * the superblock for the free block count: sector size
+ * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_remove_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * For create, break it in to the two cases that the transaction
+ * covers. We start with the modify case - allocation done by modification
+ * of the state of existing inodes - and the allocation case.
+ */
+
+/*
+ * For create we can modify:
+ * the parent directory inode: inode size
+ * the new inode: inode size
+ * the inode btree entry: block size
+ * the superblock for the nlink flag: sector size
+ * the directory btree: (max depth + v2) * dir block size
+ * the directory inode's bmap btree: (max depth + v2) * block size
+ */
+STATIC uint
+xfs_calc_create_resv_modify(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+ (uint)XFS_FSB_TO_B(mp, 1) +
+ xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp), XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * For create we can allocate some inodes giving:
+ * the agi and agf of the ag getting the new inodes: 2 * sectorsize
+ * the superblock for the nlink flag: sector size
+ * the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
+ * the inode btree: max depth * blocksize
+ * the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_create_resv_alloc(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+ mp->m_sb.sb_sectsize +
+ xfs_calc_buf_res(XFS_IALLOC_BLOCKS(mp), XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+STATIC uint
+__xfs_calc_create_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX(xfs_calc_create_resv_alloc(mp),
+ xfs_calc_create_resv_modify(mp));
+}
+
+/*
+ * For icreate we can allocate some inodes giving:
+ * the agi and agf of the ag getting the new inodes: 2 * sectorsize
+ * the superblock for the nlink flag: sector size
+ * the inode btree: max depth * blocksize
+ * the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_icreate_resv_alloc(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+ mp->m_sb.sb_sectsize +
+ xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+STATIC uint
+xfs_calc_icreate_reservation(xfs_mount_t *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX(xfs_calc_icreate_resv_alloc(mp),
+ xfs_calc_create_resv_modify(mp));
+}
+
+STATIC uint
+xfs_calc_create_reservation(
+ struct xfs_mount *mp)
+{
+ if (xfs_sb_version_hascrc(&mp->m_sb))
+ return xfs_calc_icreate_reservation(mp);
+ return __xfs_calc_create_reservation(mp);
+
+}
+
+/*
+ * Making a new directory is the same as creating a new file.
+ */
+STATIC uint
+xfs_calc_mkdir_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_create_reservation(mp);
+}
+
+
+/*
+ * Making a new symplink is the same as creating a new file, but
+ * with the added blocks for remote symlink data which can be up to 1kB in
+ * length (MAXPATHLEN).
+ */
+STATIC uint
+xfs_calc_symlink_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_create_reservation(mp) +
+ xfs_calc_buf_res(1, MAXPATHLEN);
+}
+
+/*
+ * In freeing an inode we can modify:
+ * the inode being freed: inode size
+ * the super block free inode counter: sector size
+ * the agi hash list and counters: sector size
+ * the inode btree entry: block size
+ * the on disk inode before ours in the agi hash list: inode cluster size
+ * the inode btree: max depth * blocksize
+ * the allocation btrees: 2 trees * (max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_ifree_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(1, XFS_FSB_TO_B(mp, 1)) +
+ MAX((__uint16_t)XFS_FSB_TO_B(mp, 1),
+ XFS_INODE_CLUSTER_SIZE(mp)) +
+ xfs_calc_buf_res(1, 0) +
+ xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
+ mp->m_in_maxlevels, 0) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * When only changing the inode we log the inode and possibly the superblock
+ * We also add a bit of slop for the transaction stuff.
+ */
+STATIC uint
+xfs_calc_ichange_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ mp->m_sb.sb_inodesize +
+ mp->m_sb.sb_sectsize +
+ 512;
+
+}
+
+/*
+ * Growing the data section of the filesystem.
+ * superblock
+ * agi and agf
+ * allocation btrees
+ */
+STATIC uint
+xfs_calc_growdata_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the first set of transactions (ALLOC) we allocate space to the
+ * bitmap or summary files.
+ * superblock: sector size
+ * agf of the ag from which the extent is allocated: sector size
+ * bmap btree for bitmap/summary inode: max depth * blocksize
+ * bitmap/summary inode: inode size
+ * allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
+ */
+STATIC uint
+xfs_calc_growrtalloc_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the second set of transactions (ZERO) we zero the new metadata blocks.
+ * one bitmap/summary block: blocksize
+ */
+STATIC uint
+xfs_calc_growrtzero_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_blocksize);
+}
+
+/*
+ * Growing the rt section of the filesystem.
+ * In the third set of transactions (FREE) we update metadata without
+ * allocating any new blocks.
+ * superblock: sector size
+ * bitmap inode: inode size
+ * summary inode: inode size
+ * one bitmap block: blocksize
+ * summary blocks: new summary size
+ */
+STATIC uint
+xfs_calc_growrtfree_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_blocksize) +
+ xfs_calc_buf_res(1, mp->m_rsumsize);
+}
+
+/*
+ * Logging the inode modification timestamp on a synchronous write.
+ * inode
+ */
+STATIC uint
+xfs_calc_swrite_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_inodesize);
+}
+
+/*
+ * Logging the inode mode bits when writing a setuid/setgid file
+ * inode
+ */
+STATIC uint
+xfs_calc_writeid_reservation(xfs_mount_t *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_inodesize);
+}
+
+/*
+ * Converting the inode from non-attributed to attributed.
+ * the inode being converted: inode size
+ * agf block and superblock (for block allocation)
+ * the new block (directory sized)
+ * bmap blocks for the new directory block
+ * allocation btrees
+ */
+STATIC uint
+xfs_calc_addafork_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(1, mp->m_dirblksize) +
+ xfs_calc_buf_res(XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1,
+ XFS_FSB_TO_B(mp, 1)) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * Removing the attribute fork of a file
+ * the inode being truncated: inode size
+ * the inode's bmap btree: max depth * block size
+ * And the bmap_finish transaction can free the blocks and bmap blocks:
+ * the agf for each of the ags: 4 * sector size
+ * the agfl for each of the ags: 4 * sector size
+ * the super block to reflect the freed blocks: sector size
+ * worst case split in allocation btrees per extent assuming 4 extents:
+ * 4 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_attrinval_reservation(
+ struct xfs_mount *mp)
+{
+ return MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK),
+ XFS_FSB_TO_B(mp, 1))),
+ (xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 4),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * Setting an attribute at mount time.
+ * the inode getting the attribute
+ * the superblock for allocations
+ * the agfs extents are allocated from
+ * the attribute btree * max depth
+ * the inode allocation btree
+ * Since attribute transaction space is dependent on the size of the attribute,
+ * the calculation is done partially at mount time and partially at runtime(see
+ * below).
+ */
+STATIC uint
+xfs_calc_attrsetm_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_DA_NODE_MAXDEPTH, XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * Setting an attribute at runtime, transaction space unit per block.
+ * the superblock for allocations: sector size
+ * the inode bmap btree could join or split: max depth * block size
+ * Since the runtime attribute transaction space is dependent on the total
+ * blocks needed for the 1st bmap, here we calculate out the space unit for
+ * one block so that the caller could figure out the total space according
+ * to the attibute extent length in blocks by: ext * XFS_ATTRSETRT_LOG_RES(mp).
+ */
+STATIC uint
+xfs_calc_attrsetrt_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK),
+ XFS_FSB_TO_B(mp, 1));
+}
+
+/*
+ * Removing an attribute.
+ * the inode: inode size
+ * the attribute btree could join: max depth * block size
+ * the inode bmap btree could join or split: max depth * block size
+ * And the bmap_finish transaction can free the attr blocks freed giving:
+ * the agf for the ag in which the blocks live: 2 * sector size
+ * the agfl for the ag in which the blocks live: 2 * sector size
+ * the superblock for the free block count: sector size
+ * the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
+ */
+STATIC uint
+xfs_calc_attrrm_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_DQUOT_LOGRES(mp) +
+ MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
+ xfs_calc_buf_res(XFS_DA_NODE_MAXDEPTH,
+ XFS_FSB_TO_B(mp, 1)) +
+ (uint)XFS_FSB_TO_B(mp,
+ XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) +
+ xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK), 0)),
+ (xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
+ xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
+ XFS_FSB_TO_B(mp, 1))));
+}
+
+/*
+ * Clearing a bad agino number in an agi hash bucket.
+ */
+STATIC uint
+xfs_calc_clear_agi_bucket_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
+}
+
+/*
+ * Clearing the quotaflags in the superblock.
+ * the super block for changing quota flags: sector size
+ */
+STATIC uint
+xfs_calc_qm_sbchange_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
+}
+
+/*
+ * Adjusting quota limits.
+ * the xfs_disk_dquot_t: sizeof(struct xfs_disk_dquot)
+ */
+STATIC uint
+xfs_calc_qm_setqlim_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, sizeof(struct xfs_disk_dquot));
+}
+
+/*
+ * Allocating quota on disk if needed.
+ * the write transaction log space: XFS_WRITE_LOG_RES(mp)
+ * the unit of quota allocation: one system block size
+ */
+STATIC uint
+xfs_calc_qm_dqalloc_reservation(
+ struct xfs_mount *mp)
+{
+ return XFS_WRITE_LOG_RES(mp) +
+ xfs_calc_buf_res(1,
+ XFS_FSB_TO_B(mp, XFS_DQUOT_CLUSTER_SIZE_FSB) - 1);
+}
+
+/*
+ * Turning off quotas.
+ * the xfs_qoff_logitem_t: sizeof(struct xfs_qoff_logitem) * 2
+ * the superblock for the quota flags: sector size
+ */
+STATIC uint
+xfs_calc_qm_quotaoff_reservation(
+ struct xfs_mount *mp)
+{
+ return sizeof(struct xfs_qoff_logitem) * 2 +
+ xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
+}
+
+/*
+ * End of turning off quotas.
+ * the xfs_qoff_logitem_t: sizeof(struct xfs_qoff_logitem) * 2
+ */
+STATIC uint
+xfs_calc_qm_quotaoff_end_reservation(
+ struct xfs_mount *mp)
+{
+ return sizeof(struct xfs_qoff_logitem) * 2;
+}
+
+/*
+ * Syncing the incore super block changes to disk.
+ * the super block to reflect the changes: sector size
+ */
+STATIC uint
+xfs_calc_sb_reservation(
+ struct xfs_mount *mp)
+{
+ return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize);
+}
+
+void
+xfs_trans_resv_calc(
+ struct xfs_mount *mp,
+ struct xfs_trans_resv *resp)
+{
+ resp->tr_write = xfs_calc_write_reservation(mp);
+ resp->tr_itruncate = xfs_calc_itruncate_reservation(mp);
+ resp->tr_rename = xfs_calc_rename_reservation(mp);
+ resp->tr_link = xfs_calc_link_reservation(mp);
+ resp->tr_remove = xfs_calc_remove_reservation(mp);
+ resp->tr_symlink = xfs_calc_symlink_reservation(mp);
+ resp->tr_create = xfs_calc_create_reservation(mp);
+ resp->tr_mkdir = xfs_calc_mkdir_reservation(mp);
+ resp->tr_ifree = xfs_calc_ifree_reservation(mp);
+ resp->tr_ichange = xfs_calc_ichange_reservation(mp);
+ resp->tr_growdata = xfs_calc_growdata_reservation(mp);
+ resp->tr_swrite = xfs_calc_swrite_reservation(mp);
+ resp->tr_writeid = xfs_calc_writeid_reservation(mp);
+ resp->tr_addafork = xfs_calc_addafork_reservation(mp);
+ resp->tr_attrinval = xfs_calc_attrinval_reservation(mp);
+ resp->tr_attrsetm = xfs_calc_attrsetm_reservation(mp);
+ resp->tr_attrsetrt = xfs_calc_attrsetrt_reservation(mp);
+ resp->tr_attrrm = xfs_calc_attrrm_reservation(mp);
+ resp->tr_clearagi = xfs_calc_clear_agi_bucket_reservation(mp);
+ resp->tr_growrtalloc = xfs_calc_growrtalloc_reservation(mp);
+ resp->tr_growrtzero = xfs_calc_growrtzero_reservation(mp);
+ resp->tr_growrtfree = xfs_calc_growrtfree_reservation(mp);
+ resp->tr_qm_sbchange = xfs_calc_qm_sbchange_reservation(mp);
+ resp->tr_qm_setqlim = xfs_calc_qm_setqlim_reservation(mp);
+ resp->tr_qm_dqalloc = xfs_calc_qm_dqalloc_reservation(mp);
+ resp->tr_qm_quotaoff = xfs_calc_qm_quotaoff_reservation(mp);
+ resp->tr_qm_equotaoff = xfs_calc_qm_quotaoff_end_reservation(mp);
+ resp->tr_sb = xfs_calc_sb_reservation(mp);
+}
diff --git a/mkfs/maxtrres.c b/mkfs/maxtrres.c
index 373e582..9a2cb04 100644
--- a/mkfs/maxtrres.c
+++ b/mkfs/maxtrres.c
@@ -52,11 +52,11 @@ max_attrsetm_trans_res_adjust(
static int
max_trans_res_by_mount(
- xfs_mount_t *mp)
+ xfs_mount_t *mp)
{
- uint *p;
- int rval;
- struct xfs_trans_reservations *tr = &mp->m_reservations;
+ uint *p;
+ int rval;
+ struct xfs_trans_resv *tr = &mp->m_reservations;
for (rval = 0, p = (uint *)tr; p < (uint *)(tr + 1); p++) {
if ((int)*p > rval)
--
1.7.10.4
_______________________________________________
xfs mailing list
xfs@xxxxxxxxxxx
http://oss.sgi.com/mailman/listinfo/xfs
