#include "xfs_trans_priv.h"
#include "xfs_trans_space.h"
#include "xfs_inode_item.h"
+#include "xfs_trace.h"
kmem_zone_t *xfs_trans_zone;
+
+/*
+ * 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.
+ */
+
+
/*
- * 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(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
-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
-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
-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
-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
-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
-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
-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
-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
-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
-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
-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
-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
-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
-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
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
-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
-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
-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
-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
-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;
}
/*
*/
void
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_itruncate = xfs_calc_itruncate_reservation(mp);
resp->tr_rename = xfs_calc_rename_reservation(mp);
tp->t_type = type;
tp->t_mountp = mp;
tp->t_items_free = XFS_LIC_NUM_SLOTS;
- tp->t_busy_free = XFS_LBC_NUM_SLOTS;
xfs_lic_init(&(tp->t_items));
- XFS_LBC_INIT(&(tp->t_busy));
+ INIT_LIST_HEAD(&tp->t_busy);
return tp;
}
*/
STATIC void
xfs_trans_free(
- xfs_trans_t *tp)
+ struct xfs_trans *tp)
{
+ struct xfs_busy_extent *busyp, *n;
+
+ list_for_each_entry_safe(busyp, n, &tp->t_busy, list)
+ xfs_alloc_busy_clear(tp->t_mountp, busyp);
+
atomic_dec(&tp->t_mountp->m_active_trans);
xfs_trans_free_dqinfo(tp);
kmem_zone_free(xfs_trans_zone, tp);
ntp->t_type = tp->t_type;
ntp->t_mountp = tp->t_mountp;
ntp->t_items_free = XFS_LIC_NUM_SLOTS;
- ntp->t_busy_free = XFS_LBC_NUM_SLOTS;
xfs_lic_init(&(ntp->t_items));
- XFS_LBC_INIT(&(ntp->t_busy));
+ INIT_LIST_HEAD(&ntp->t_busy);
ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
ASSERT(tp->t_ticket != NULL);
return error;
}
-
/*
* Record the indicated change to the given field for application
* to the file system's superblock when the transaction commits.
* XFS_TRANS_SB_DIRTY will not be set when the transaction is updated but we
* still need to update the incore superblock with the changes.
*/
-STATIC void
+void
xfs_trans_unreserve_and_mod_sb(
xfs_trans_t *tp)
{
* they could be immediately flushed and we'd have to race with the flusher
* trying to pull the item from the AIL as we add it.
*/
-static void
+void
xfs_trans_item_committed(
struct xfs_log_item *lip,
xfs_lsn_t commit_lsn,
IOP_UNPIN(lip);
}
-/* Clear all the per-AG busy list items listed in this transaction */
-static void
-xfs_trans_clear_busy_extents(
- struct xfs_trans *tp)
-{
- xfs_log_busy_chunk_t *lbcp;
- xfs_log_busy_slot_t *lbsp;
- int i;
-
- for (lbcp = &tp->t_busy; lbcp != NULL; lbcp = lbcp->lbc_next) {
- i = 0;
- for (lbsp = lbcp->lbc_busy; i < lbcp->lbc_unused; i++, lbsp++) {
- if (XFS_LBC_ISFREE(lbcp, i))
- continue;
- xfs_alloc_clear_busy(tp, lbsp->lbc_ag, lbsp->lbc_idx);
- }
- }
- xfs_trans_free_busy(tp);
-}
-
/*
* This is typically called by the LM when a transaction has been fully
* committed to disk. It needs to unpin the items which have
kmem_free(licp);
}
- xfs_trans_clear_busy_extents(tp);
xfs_trans_free(tp);
}
xfs_trans_unreserve_and_mod_sb(tp);
xfs_trans_unreserve_and_mod_dquots(tp);
- xfs_trans_free_items(tp, flags);
- xfs_trans_free_busy(tp);
+ xfs_trans_free_items(tp, NULLCOMMITLSN, flags);
xfs_trans_free(tp);
}
*commit_lsn = xfs_log_done(mp, tp->t_ticket, &commit_iclog, log_flags);
tp->t_commit_lsn = *commit_lsn;
+ trace_xfs_trans_commit_lsn(tp);
+
if (nvec > XFS_TRANS_LOGVEC_COUNT)
kmem_free(log_vector);
return xfs_log_release_iclog(mp, commit_iclog);
}
+/*
+ * Walk the log items and allocate log vector structures for
+ * each item large enough to fit all the vectors they require.
+ * Note that this format differs from the old log vector format in
+ * that there is no transaction header in these log vectors.
+ */
+STATIC struct xfs_log_vec *
+xfs_trans_alloc_log_vecs(
+ xfs_trans_t *tp)
+{
+ xfs_log_item_desc_t *lidp;
+ struct xfs_log_vec *lv = NULL;
+ struct xfs_log_vec *ret_lv = NULL;
+
+ lidp = xfs_trans_first_item(tp);
+
+ /* Bail out if we didn't find a log item. */
+ if (!lidp) {
+ ASSERT(0);
+ return NULL;
+ }
+
+ while (lidp != NULL) {
+ struct xfs_log_vec *new_lv;
+
+ /* Skip items which aren't dirty in this transaction. */
+ if (!(lidp->lid_flags & XFS_LID_DIRTY)) {
+ lidp = xfs_trans_next_item(tp, lidp);
+ continue;
+ }
+
+ /* Skip items that do not have any vectors for writing */
+ lidp->lid_size = IOP_SIZE(lidp->lid_item);
+ if (!lidp->lid_size) {
+ lidp = xfs_trans_next_item(tp, lidp);
+ continue;
+ }
+
+ new_lv = kmem_zalloc(sizeof(*new_lv) +
+ lidp->lid_size * sizeof(struct xfs_log_iovec),
+ KM_SLEEP);
+
+ /* The allocated iovec region lies beyond the log vector. */
+ new_lv->lv_iovecp = (struct xfs_log_iovec *)&new_lv[1];
+ new_lv->lv_niovecs = lidp->lid_size;
+ new_lv->lv_item = lidp->lid_item;
+ if (!ret_lv)
+ ret_lv = new_lv;
+ else
+ lv->lv_next = new_lv;
+ lv = new_lv;
+ lidp = xfs_trans_next_item(tp, lidp);
+ }
+
+ return ret_lv;
+}
+
+static int
+xfs_trans_commit_cil(
+ struct xfs_mount *mp,
+ struct xfs_trans *tp,
+ xfs_lsn_t *commit_lsn,
+ int flags)
+{
+ struct xfs_log_vec *log_vector;
+ int error;
+
+ /*
+ * Get each log item to allocate a vector structure for
+ * the log item to to pass to the log write code. The
+ * CIL commit code will format the vector and save it away.
+ */
+ log_vector = xfs_trans_alloc_log_vecs(tp);
+ if (!log_vector)
+ return ENOMEM;
+
+ error = xfs_log_commit_cil(mp, tp, log_vector, commit_lsn, flags);
+ if (error)
+ return error;
+
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
+
+ /* xfs_trans_free_items() unlocks them first */
+ xfs_trans_free_items(tp, *commit_lsn, 0);
+ xfs_trans_free(tp);
+ return 0;
+}
/*
* xfs_trans_commit
xfs_trans_apply_sb_deltas(tp);
xfs_trans_apply_dquot_deltas(tp);
- error = xfs_trans_commit_iclog(mp, tp, &commit_lsn, flags);
+ if (mp->m_flags & XFS_MOUNT_DELAYLOG)
+ error = xfs_trans_commit_cil(mp, tp, &commit_lsn, flags);
+ else
+ error = xfs_trans_commit_iclog(mp, tp, &commit_lsn, flags);
+
if (error == ENOMEM) {
xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
error = XFS_ERROR(EIO);
error = XFS_ERROR(EIO);
}
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
- xfs_trans_free_items(tp, error ? XFS_TRANS_ABORT : 0);
- xfs_trans_free_busy(tp);
+ xfs_trans_free_items(tp, NULLCOMMITLSN, error ? XFS_TRANS_ABORT : 0);
xfs_trans_free(tp);
XFS_STATS_INC(xs_trans_empty);
/* mark this thread as no longer being in a transaction */
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
- xfs_trans_free_items(tp, flags);
- xfs_trans_free_busy(tp);
+ xfs_trans_free_items(tp, NULLCOMMITLSN, flags);
xfs_trans_free(tp);
}
projects / cascardo / linux.git / blobdiff