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Commit 025101dc authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Alex Elder
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xfs: cleanup log reservation calculactions 

Instead of having small helper functions calling big macros do the
calculations for the log reservations directly in the functions.
These are mostly 1:1 from the macros execept that the macros kept
the quota calculations in their callers.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarAlex Elder <aelder@sgi.com>
parent 32891b29
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fs/xfs/xfs_trans.c
View file @ 025101dc
...@@ -48,134 +48,489 @@ ...@@ -48,134 +48,489 @@
kmem_zone_t *xfs_trans_zone; kmem_zone_t *xfs_trans_zone;
/* /*
* Reservation functions here avoid a huge stack in xfs_trans_init * Various log reservation values.
* due to register overflow from temporaries in the calculations. *
* 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 STATIC uint
xfs_calc_write_reservation(xfs_mount_t *mp) xfs_calc_write_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) +
2 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 2) +
128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) +
XFS_ALLOCFREE_LOG_COUNT(mp, 2))),
(2 * mp->m_sb.sb_sectsize +
2 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 2) +
128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))));
} }
/*
* 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 STATIC uint
xfs_calc_itruncate_reservation(xfs_mount_t *mp) xfs_calc_itruncate_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) +
128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK))),
(4 * mp->m_sb.sb_sectsize +
4 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 4) +
128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4)) +
128 * 5 +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (2 + XFS_IALLOC_BLOCKS(mp) + mp->m_in_maxlevels +
XFS_ALLOCFREE_LOG_COUNT(mp, 1))));
} }
/*
* 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 STATIC uint
xfs_calc_rename_reservation(xfs_mount_t *mp) xfs_calc_rename_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((4 * mp->m_sb.sb_inodesize +
2 * XFS_DIROP_LOG_RES(mp) +
128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp))),
(3 * mp->m_sb.sb_sectsize +
3 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 3) +
128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3))));
} }
/*
* 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 STATIC uint
xfs_calc_link_reservation(xfs_mount_t *mp) xfs_calc_link_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_LINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
mp->m_sb.sb_inodesize +
XFS_DIROP_LOG_RES(mp) +
128 * (2 + XFS_DIROP_LOG_COUNT(mp))),
(mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (3 + XFS_ALLOCFREE_LOG_COUNT(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 STATIC uint
xfs_calc_remove_reservation(xfs_mount_t *mp) xfs_calc_remove_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
mp->m_sb.sb_inodesize +
XFS_DIROP_LOG_RES(mp) +
128 * (2 + XFS_DIROP_LOG_COUNT(mp))),
(2 * mp->m_sb.sb_sectsize +
2 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 2) +
128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))));
} }
/*
* For symlink we can modify:
* the parent directory inode: inode size
* the new inode: inode size
* the inode btree entry: 1 block
* the directory btree: (max depth + v2) * dir block size
* the directory inode's bmap btree: (max depth + v2) * block size
* the blocks for the symlink: 1 kB
* Or in the first xact we allocate some inodes giving:
* the agi and agf of the ag getting the new inodes: 2 * sectorsize
* the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
* the inode btree: max depth * blocksize
* the allocation btrees: 2 trees * (2 * max depth - 1) * block size
*/
STATIC uint STATIC uint
xfs_calc_symlink_reservation(xfs_mount_t *mp) xfs_calc_symlink_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
mp->m_sb.sb_inodesize +
XFS_FSB_TO_B(mp, 1) +
XFS_DIROP_LOG_RES(mp) +
1024 +
128 * (4 + XFS_DIROP_LOG_COUNT(mp))),
(2 * mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, XFS_IALLOC_BLOCKS(mp)) +
XFS_FSB_TO_B(mp, mp->m_in_maxlevels) +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (2 + XFS_IALLOC_BLOCKS(mp) + mp->m_in_maxlevels +
XFS_ALLOCFREE_LOG_COUNT(mp, 1))));
} }
/*
* 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
* Or in the first xact we 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 STATIC uint
xfs_calc_create_reservation(xfs_mount_t *mp) xfs_calc_create_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
mp->m_sb.sb_inodesize +
mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, 1) +
XFS_DIROP_LOG_RES(mp) +
128 * (3 + XFS_DIROP_LOG_COUNT(mp))),
(3 * mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, XFS_IALLOC_BLOCKS(mp)) +
XFS_FSB_TO_B(mp, mp->m_in_maxlevels) +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (2 + XFS_IALLOC_BLOCKS(mp) + mp->m_in_maxlevels +
XFS_ALLOCFREE_LOG_COUNT(mp, 1))));
} }
/*
* Making a new directory is the same as creating a new file.
*/
STATIC uint STATIC uint
xfs_calc_mkdir_reservation(xfs_mount_t *mp) xfs_calc_mkdir_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return xfs_calc_create_reservation(mp);
} }
/*
* 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 STATIC uint
xfs_calc_ifree_reservation(xfs_mount_t *mp) xfs_calc_ifree_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
mp->m_sb.sb_inodesize +
mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, 1) +
MAX((__uint16_t)XFS_FSB_TO_B(mp, 1),
XFS_INODE_CLUSTER_SIZE(mp)) +
128 * 5 +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (2 + XFS_IALLOC_BLOCKS(mp) + mp->m_in_maxlevels +
XFS_ALLOCFREE_LOG_COUNT(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 STATIC uint
xfs_calc_ichange_reservation(xfs_mount_t *mp) xfs_calc_ichange_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(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 STATIC uint
xfs_calc_growdata_reservation(xfs_mount_t *mp) xfs_calc_growdata_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_GROWDATA_LOG_RES(mp); return mp->m_sb.sb_sectsize * 3 +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (3 + XFS_ALLOCFREE_LOG_COUNT(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 STATIC uint
xfs_calc_growrtalloc_reservation(xfs_mount_t *mp) xfs_calc_growrtalloc_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_GROWRTALLOC_LOG_RES(mp); return 2 * mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) +
mp->m_sb.sb_inodesize +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) +
XFS_ALLOCFREE_LOG_COUNT(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 STATIC uint
xfs_calc_growrtzero_reservation(xfs_mount_t *mp) xfs_calc_growrtzero_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_GROWRTZERO_LOG_RES(mp); return mp->m_sb.sb_blocksize + 128;
} }
/*
* 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 STATIC uint
xfs_calc_growrtfree_reservation(xfs_mount_t *mp) xfs_calc_growrtfree_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_GROWRTFREE_LOG_RES(mp); return mp->m_sb.sb_sectsize +
2 * mp->m_sb.sb_inodesize +
mp->m_sb.sb_blocksize +
mp->m_rsumsize +
128 * 5;
} }
/*
* Logging the inode modification timestamp on a synchronous write.
* inode
*/
STATIC uint STATIC uint
xfs_calc_swrite_reservation(xfs_mount_t *mp) xfs_calc_swrite_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_SWRITE_LOG_RES(mp); return mp->m_sb.sb_inodesize + 128;
} }
/*
* Logging the inode mode bits when writing a setuid/setgid file
* inode
*/
STATIC uint STATIC uint
xfs_calc_writeid_reservation(xfs_mount_t *mp) xfs_calc_writeid_reservation(xfs_mount_t *mp)
{ {
return XFS_CALC_WRITEID_LOG_RES(mp); return mp->m_sb.sb_inodesize + 128;
} }
/*
* 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 STATIC uint
xfs_calc_addafork_reservation(xfs_mount_t *mp) xfs_calc_addafork_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
mp->m_sb.sb_inodesize +
mp->m_sb.sb_sectsize * 2 +
mp->m_dirblksize +
XFS_FSB_TO_B(mp, XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) +
XFS_ALLOCFREE_LOG_RES(mp, 1) +
128 * (4 + XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1 +
XFS_ALLOCFREE_LOG_COUNT(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 STATIC uint
xfs_calc_attrinval_reservation(xfs_mount_t *mp) xfs_calc_attrinval_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ATTRINVAL_LOG_RES(mp); return MAX((mp->m_sb.sb_inodesize +
XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) +
128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))),
(4 * mp->m_sb.sb_sectsize +
4 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 4) +
128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))));
} }
/*
* Setting an attribute.
* 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.
*/
STATIC uint STATIC uint
xfs_calc_attrset_reservation(xfs_mount_t *mp) xfs_calc_attrset_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
mp->m_sb.sb_inodesize +
mp->m_sb.sb_sectsize +
XFS_FSB_TO_B(mp, XFS_DA_NODE_MAXDEPTH) +
128 * (2 + XFS_DA_NODE_MAXDEPTH);
} }
/*
* 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 STATIC uint
xfs_calc_attrrm_reservation(xfs_mount_t *mp) xfs_calc_attrrm_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); return XFS_DQUOT_LOGRES(mp) +
MAX((mp->m_sb.sb_inodesize +
XFS_FSB_TO_B(mp, XFS_DA_NODE_MAXDEPTH) +
XFS_FSB_TO_B(mp, XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) +
128 * (1 + XFS_DA_NODE_MAXDEPTH +
XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK))),
(2 * mp->m_sb.sb_sectsize +
2 * mp->m_sb.sb_sectsize +
mp->m_sb.sb_sectsize +
XFS_ALLOCFREE_LOG_RES(mp, 2) +
128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))));
} }
/*
* Clearing a bad agino number in an agi hash bucket.
*/
STATIC uint STATIC uint
xfs_calc_clear_agi_bucket_reservation(xfs_mount_t *mp) xfs_calc_clear_agi_bucket_reservation(
struct xfs_mount *mp)
{ {
return XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp); return mp->m_sb.sb_sectsize + 128;
} }
/* /*
...@@ -184,11 +539,10 @@ xfs_calc_clear_agi_bucket_reservation(xfs_mount_t *mp) ...@@ -184,11 +539,10 @@ xfs_calc_clear_agi_bucket_reservation(xfs_mount_t *mp)
*/ */
void void
xfs_trans_init( xfs_trans_init(
xfs_mount_t *mp) struct xfs_mount *mp)
{ {
xfs_trans_reservations_t *resp; struct xfs_trans_reservations *resp = &mp->m_reservations;
resp = &(mp->m_reservations);
resp->tr_write = xfs_calc_write_reservation(mp); resp->tr_write = xfs_calc_write_reservation(mp);
resp->tr_itruncate = xfs_calc_itruncate_reservation(mp); resp->tr_itruncate = xfs_calc_itruncate_reservation(mp);
resp->tr_rename = xfs_calc_rename_reservation(mp); resp->tr_rename = xfs_calc_rename_reservation(mp);
......
fs/xfs/xfs_trans.h
View file @ 025101dc
...@@ -299,24 +299,6 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp) ...@@ -299,24 +299,6 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
#define XFS_TRANS_SB_REXTSLOG 0x00002000 #define XFS_TRANS_SB_REXTSLOG 0x00002000
/*
* 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 bug 261917.
*/
/* /*
* Per-extent log reservation for the allocation btree changes * Per-extent log reservation for the allocation btree changes
* involved in freeing or allocating an extent. * involved in freeing or allocating an extent.
...@@ -341,429 +323,36 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp) ...@@ -341,429 +323,36 @@ xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \ (XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1) XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
/*
* 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
*/
#define XFS_CALC_WRITE_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
(2 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 2) + \
(128 * (4 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + XFS_ALLOCFREE_LOG_COUNT(mp, 2)))),\
((2 * (mp)->m_sb.sb_sectsize) + \
(2 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 2) + \
(128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
#define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write) #define XFS_WRITE_LOG_RES(mp) ((mp)->m_reservations.tr_write)
/*
* 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
*/
#define XFS_CALC_ITRUNCATE_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1) + \
(128 * (2 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
((4 * (mp)->m_sb.sb_sectsize) + \
(4 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 4) + \
(128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))) + \
(128 * 5) + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
#define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate) #define XFS_ITRUNCATE_LOG_RES(mp) ((mp)->m_reservations.tr_itruncate)
/*
* 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
*/
#define XFS_CALC_RENAME_LOG_RES(mp) \
(MAX( \
((4 * (mp)->m_sb.sb_inodesize) + \
(2 * XFS_DIROP_LOG_RES(mp)) + \
(128 * (4 + 2 * XFS_DIROP_LOG_COUNT(mp)))), \
((3 * (mp)->m_sb.sb_sectsize) + \
(3 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 3) + \
(128 * (7 + XFS_ALLOCFREE_LOG_COUNT(mp, 3))))))
#define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename) #define XFS_RENAME_LOG_RES(mp) ((mp)->m_reservations.tr_rename)
/*
* 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
*/
#define XFS_CALC_LINK_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_inodesize + \
XFS_DIROP_LOG_RES(mp) + \
(128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
((mp)->m_sb.sb_sectsize + \
(mp)->m_sb.sb_sectsize + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
#define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link) #define XFS_LINK_LOG_RES(mp) ((mp)->m_reservations.tr_link)
/*
* 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
*/
#define XFS_CALC_REMOVE_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_inodesize + \
XFS_DIROP_LOG_RES(mp) + \
(128 * (2 + XFS_DIROP_LOG_COUNT(mp)))), \
((2 * (mp)->m_sb.sb_sectsize) + \
(2 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 2) + \
(128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
#define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove) #define XFS_REMOVE_LOG_RES(mp) ((mp)->m_reservations.tr_remove)
/*
* For symlink we can modify:
* the parent directory inode: inode size
* the new inode: inode size
* the inode btree entry: 1 block
* the directory btree: (max depth + v2) * dir block size
* the directory inode's bmap btree: (max depth + v2) * block size
* the blocks for the symlink: 1 kB
* Or in the first xact we allocate some inodes giving:
* the agi and agf of the ag getting the new inodes: 2 * sectorsize
* the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
* the inode btree: max depth * blocksize
* the allocation btrees: 2 trees * (2 * max depth - 1) * block size
*/
#define XFS_CALC_SYMLINK_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_inodesize + \
XFS_FSB_TO_B(mp, 1) + \
XFS_DIROP_LOG_RES(mp) + \
1024 + \
(128 * (4 + XFS_DIROP_LOG_COUNT(mp)))), \
(2 * (mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
XFS_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
#define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink) #define XFS_SYMLINK_LOG_RES(mp) ((mp)->m_reservations.tr_symlink)
/*
* 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
* Or in the first xact we 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
*/
#define XFS_CALC_CREATE_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B(mp, 1) + \
XFS_DIROP_LOG_RES(mp) + \
(128 * (3 + XFS_DIROP_LOG_COUNT(mp)))), \
(3 * (mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B((mp), XFS_IALLOC_BLOCKS((mp))) + \
XFS_FSB_TO_B((mp), (mp)->m_in_maxlevels) + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))))
#define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create) #define XFS_CREATE_LOG_RES(mp) ((mp)->m_reservations.tr_create)
/*
* Making a new directory is the same as creating a new file.
*/
#define XFS_CALC_MKDIR_LOG_RES(mp) XFS_CALC_CREATE_LOG_RES(mp)
#define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir) #define XFS_MKDIR_LOG_RES(mp) ((mp)->m_reservations.tr_mkdir)
/*
* 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
*/
#define XFS_CALC_IFREE_LOG_RES(mp) \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_sectsize + \
(mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B((mp), 1) + \
MAX((__uint16_t)XFS_FSB_TO_B((mp), 1), XFS_INODE_CLUSTER_SIZE(mp)) + \
(128 * 5) + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (2 + XFS_IALLOC_BLOCKS(mp) + (mp)->m_in_maxlevels + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
#define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree) #define XFS_IFREE_LOG_RES(mp) ((mp)->m_reservations.tr_ifree)
/*
* When only changing the inode we log the inode and possibly the superblock
* We also add a bit of slop for the transaction stuff.
*/
#define XFS_CALC_ICHANGE_LOG_RES(mp) ((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_sectsize + 512)
#define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange) #define XFS_ICHANGE_LOG_RES(mp) ((mp)->m_reservations.tr_ichange)
/*
* Growing the data section of the filesystem.
* superblock
* agi and agf
* allocation btrees
*/
#define XFS_CALC_GROWDATA_LOG_RES(mp) \
((mp)->m_sb.sb_sectsize * 3 + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (3 + XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
#define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata) #define XFS_GROWDATA_LOG_RES(mp) ((mp)->m_reservations.tr_growdata)
/*
* 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
*/
#define XFS_CALC_GROWRTALLOC_LOG_RES(mp) \
(2 * (mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)) + \
(mp)->m_sb.sb_inodesize + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * \
(3 + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
#define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc) #define XFS_GROWRTALLOC_LOG_RES(mp) ((mp)->m_reservations.tr_growrtalloc)
/*
* 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
*/
#define XFS_CALC_GROWRTZERO_LOG_RES(mp) \
((mp)->m_sb.sb_blocksize + 128)
#define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero) #define XFS_GROWRTZERO_LOG_RES(mp) ((mp)->m_reservations.tr_growrtzero)
/*
* 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
*/
#define XFS_CALC_GROWRTFREE_LOG_RES(mp) \
((mp)->m_sb.sb_sectsize + \
2 * (mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_blocksize + \
(mp)->m_rsumsize + \
(128 * 5))
#define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree) #define XFS_GROWRTFREE_LOG_RES(mp) ((mp)->m_reservations.tr_growrtfree)
/*
* Logging the inode modification timestamp on a synchronous write.
* inode
*/
#define XFS_CALC_SWRITE_LOG_RES(mp) \
((mp)->m_sb.sb_inodesize + 128)
#define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) #define XFS_SWRITE_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
/* /*
* Logging the inode timestamps on an fsync -- same as SWRITE * Logging the inode timestamps on an fsync -- same as SWRITE
* as long as SWRITE logs the entire inode core * as long as SWRITE logs the entire inode core
*/ */
#define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) #define XFS_FSYNC_TS_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
/*
* Logging the inode mode bits when writing a setuid/setgid file
* inode
*/
#define XFS_CALC_WRITEID_LOG_RES(mp) \
((mp)->m_sb.sb_inodesize + 128)
#define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite) #define XFS_WRITEID_LOG_RES(mp) ((mp)->m_reservations.tr_swrite)
/*
* 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
*/
#define XFS_CALC_ADDAFORK_LOG_RES(mp) \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_sectsize * 2 + \
(mp)->m_dirblksize + \
XFS_FSB_TO_B(mp, (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1)) + \
XFS_ALLOCFREE_LOG_RES(mp, 1) + \
(128 * (4 + (XFS_DAENTER_BMAP1B(mp, XFS_DATA_FORK) + 1) + \
XFS_ALLOCFREE_LOG_COUNT(mp, 1))))
#define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork) #define XFS_ADDAFORK_LOG_RES(mp) ((mp)->m_reservations.tr_addafork)
/*
* 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
*/
#define XFS_CALC_ATTRINVAL_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
(128 * (1 + XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))), \
((4 * (mp)->m_sb.sb_sectsize) + \
(4 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 4) + \
(128 * (9 + XFS_ALLOCFREE_LOG_COUNT(mp, 4))))))
#define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval) #define XFS_ATTRINVAL_LOG_RES(mp) ((mp)->m_reservations.tr_attrinval)
/*
* Setting an attribute.
* 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.
*/
#define XFS_CALC_ATTRSET_LOG_RES(mp) \
((mp)->m_sb.sb_inodesize + \
(mp)->m_sb.sb_sectsize + \
XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
(128 * (2 + XFS_DA_NODE_MAXDEPTH)))
#define XFS_ATTRSET_LOG_RES(mp, ext) \ #define XFS_ATTRSET_LOG_RES(mp, ext) \
((mp)->m_reservations.tr_attrset + \ ((mp)->m_reservations.tr_attrset + \
(ext * (mp)->m_sb.sb_sectsize) + \ (ext * (mp)->m_sb.sb_sectsize) + \
(ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \ (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
(128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))))) (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
/*
* 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
*/
#define XFS_CALC_ATTRRM_LOG_RES(mp) \
(MAX( \
((mp)->m_sb.sb_inodesize + \
XFS_FSB_TO_B((mp), XFS_DA_NODE_MAXDEPTH) + \
XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)) + \
(128 * (1 + XFS_DA_NODE_MAXDEPTH + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK)))), \
((2 * (mp)->m_sb.sb_sectsize) + \
(2 * (mp)->m_sb.sb_sectsize) + \
(mp)->m_sb.sb_sectsize + \
XFS_ALLOCFREE_LOG_RES(mp, 2) + \
(128 * (5 + XFS_ALLOCFREE_LOG_COUNT(mp, 2))))))
#define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm) #define XFS_ATTRRM_LOG_RES(mp) ((mp)->m_reservations.tr_attrrm)
/*
* Clearing a bad agino number in an agi hash bucket.
*/
#define XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp) \
((mp)->m_sb.sb_sectsize + 128)
#define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi) #define XFS_CLEAR_AGI_BUCKET_LOG_RES(mp) ((mp)->m_reservations.tr_clearagi)
......
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