xfs: split out transaction reservation code
The transaction reservation size calculations is used by both kernel and userspace, but most of the transaction code in xfs_trans.c is kernel specific. Split all the transaction reservation code out into it's own files to make sharing with userspace simpler. This just leaves kernel-only definitions in xfs_trans.h, so it doesn't need to be shared with userspace anymore, either. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Dave Chinner
@@ -48,629 +48,6 @@
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kmem_zone_t *xfs_trans_zone;
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kmem_zone_t *xfs_log_item_desc_zone;
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/*
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* A buffer has a format structure overhead in the log in addition
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* to the data, so we need to take this into account when reserving
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* space in a transaction for a buffer. Round the space required up
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* to a multiple of 128 bytes so that we don't change the historical
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* reservation that has been used for this overhead.
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*/
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STATIC uint
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xfs_buf_log_overhead(void)
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{
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return round_up(sizeof(struct xlog_op_header) +
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sizeof(struct xfs_buf_log_format), 128);
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}
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/*
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* Calculate out transaction log reservation per item in bytes.
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*
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* The nbufs argument is used to indicate the number of items that
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* will be changed in a transaction. size is used to tell how many
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* bytes should be reserved per item.
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*/
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STATIC uint
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xfs_calc_buf_res(
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uint nbufs,
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uint size)
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{
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return nbufs * (size + xfs_buf_log_overhead());
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}
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/*
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* Various log reservation values.
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*
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* These are based on the size of the file system block because that is what
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* most transactions manipulate. Each adds in an additional 128 bytes per
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* item logged to try to account for the overhead of the transaction mechanism.
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*
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* Note: Most of the reservations underestimate the number of allocation
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* groups into which they could free extents in the xfs_bmap_finish() call.
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* This is because the number in the worst case is quite high and quite
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* unusual. In order to fix this we need to change xfs_bmap_finish() to free
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* extents in only a single AG at a time. This will require changes to the
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* EFI code as well, however, so that the EFI for the extents not freed is
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* logged again in each transaction. See SGI PV #261917.
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*
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* Reservation functions here avoid a huge stack in xfs_trans_init due to
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* register overflow from temporaries in the calculations.
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*/
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/*
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* In a write transaction we can allocate a maximum of 2
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* extents. This gives:
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* the inode getting the new extents: inode size
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* the inode's bmap btree: max depth * block size
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* the agfs of the ags from which the extents are allocated: 2 * sector
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* the superblock free block counter: sector size
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* the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
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* And the bmap_finish transaction can free bmap blocks in a join:
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* the agfs of the ags containing the blocks: 2 * sector size
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* the agfls of the ags containing the blocks: 2 * sector size
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* the super block free block counter: sector size
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* the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_write_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
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XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
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XFS_FSB_TO_B(mp, 1))),
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(xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
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XFS_FSB_TO_B(mp, 1))));
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}
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/*
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* In truncating a file we free up to two extents at once. We can modify:
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* the inode being truncated: inode size
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* the inode's bmap btree: (max depth + 1) * block size
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* And the bmap_finish transaction can free the blocks and bmap blocks:
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* the agf for each of the ags: 4 * sector size
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* the agfl for each of the ags: 4 * sector size
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* the super block to reflect the freed blocks: sector size
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* worst case split in allocation btrees per extent assuming 4 extents:
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* 4 exts * 2 trees * (2 * max depth - 1) * block size
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* the inode btree: max depth * blocksize
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* the allocation btrees: 2 trees * (max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_itruncate_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX((xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) + 1,
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XFS_FSB_TO_B(mp, 1))),
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(xfs_calc_buf_res(9, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 4),
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XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(5, 0) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
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mp->m_in_maxlevels, 0)));
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}
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/*
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* In renaming a files we can modify:
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* the four inodes involved: 4 * inode size
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* the two directory btrees: 2 * (max depth + v2) * dir block size
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* the two directory bmap btrees: 2 * max depth * block size
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* And the bmap_finish transaction can free dir and bmap blocks (two sets
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* of bmap blocks) giving:
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* the agf for the ags in which the blocks live: 3 * sector size
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* the agfl for the ags in which the blocks live: 3 * sector size
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* the superblock for the free block count: sector size
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* the allocation btrees: 3 exts * 2 trees * (2 * max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_rename_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX((xfs_calc_buf_res(4, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(2 * XFS_DIROP_LOG_COUNT(mp),
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XFS_FSB_TO_B(mp, 1))),
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(xfs_calc_buf_res(7, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 3),
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XFS_FSB_TO_B(mp, 1))));
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}
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/*
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* For creating a link to an inode:
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* the parent directory inode: inode size
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* the linked inode: inode size
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* the directory btree could split: (max depth + v2) * dir block size
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* the directory bmap btree could join or split: (max depth + v2) * blocksize
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* And the bmap_finish transaction can free some bmap blocks giving:
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* the agf for the ag in which the blocks live: sector size
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* the agfl for the ag in which the blocks live: sector size
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* the superblock for the free block count: sector size
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* the allocation btrees: 2 trees * (2 * max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_link_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
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XFS_FSB_TO_B(mp, 1))),
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(xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1))));
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}
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/*
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* For removing a directory entry we can modify:
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* the parent directory inode: inode size
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* the removed inode: inode size
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* the directory btree could join: (max depth + v2) * dir block size
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* the directory bmap btree could join or split: (max depth + v2) * blocksize
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* And the bmap_finish transaction can free the dir and bmap blocks giving:
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* the agf for the ag in which the blocks live: 2 * sector size
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* the agfl for the ag in which the blocks live: 2 * sector size
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* the superblock for the free block count: sector size
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* the allocation btrees: 2 exts * 2 trees * (2 * max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_remove_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX((xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp),
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XFS_FSB_TO_B(mp, 1))),
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(xfs_calc_buf_res(5, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 2),
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XFS_FSB_TO_B(mp, 1))));
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}
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/*
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* For create, break it in to the two cases that the transaction
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* covers. We start with the modify case - allocation done by modification
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* of the state of existing inodes - and the allocation case.
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*/
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/*
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* For create we can modify:
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* the parent directory inode: inode size
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* the new inode: inode size
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* the inode btree entry: block size
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* the superblock for the nlink flag: sector size
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* the directory btree: (max depth + v2) * dir block size
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* the directory inode's bmap btree: (max depth + v2) * block size
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*/
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STATIC uint
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xfs_calc_create_resv_modify(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
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(uint)XFS_FSB_TO_B(mp, 1) +
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xfs_calc_buf_res(XFS_DIROP_LOG_COUNT(mp), XFS_FSB_TO_B(mp, 1));
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}
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/*
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* For create we can allocate some inodes giving:
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* the agi and agf of the ag getting the new inodes: 2 * sectorsize
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* the superblock for the nlink flag: sector size
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* the inode blocks allocated: XFS_IALLOC_BLOCKS * blocksize
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* the inode btree: max depth * blocksize
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* the allocation btrees: 2 trees * (max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_create_resv_alloc(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
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mp->m_sb.sb_sectsize +
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xfs_calc_buf_res(XFS_IALLOC_BLOCKS(mp), XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1));
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}
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STATIC uint
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__xfs_calc_create_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX(xfs_calc_create_resv_alloc(mp),
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xfs_calc_create_resv_modify(mp));
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}
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/*
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* For icreate we can allocate some inodes giving:
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* the agi and agf of the ag getting the new inodes: 2 * sectorsize
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* the superblock for the nlink flag: sector size
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* the inode btree: max depth * blocksize
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* the allocation btrees: 2 trees * (max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_icreate_resv_alloc(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
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mp->m_sb.sb_sectsize +
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xfs_calc_buf_res(mp->m_in_maxlevels, XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1));
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}
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STATIC uint
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xfs_calc_icreate_reservation(xfs_mount_t *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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MAX(xfs_calc_icreate_resv_alloc(mp),
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xfs_calc_create_resv_modify(mp));
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}
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STATIC uint
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xfs_calc_create_reservation(
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struct xfs_mount *mp)
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{
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if (xfs_sb_version_hascrc(&mp->m_sb))
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return xfs_calc_icreate_reservation(mp);
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return __xfs_calc_create_reservation(mp);
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}
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/*
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* Making a new directory is the same as creating a new file.
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*/
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STATIC uint
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xfs_calc_mkdir_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_create_reservation(mp);
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}
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/*
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* Making a new symplink is the same as creating a new file, but
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* with the added blocks for remote symlink data which can be up to 1kB in
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* length (MAXPATHLEN).
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*/
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STATIC uint
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xfs_calc_symlink_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_create_reservation(mp) +
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xfs_calc_buf_res(1, MAXPATHLEN);
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}
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/*
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* In freeing an inode we can modify:
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* the inode being freed: inode size
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* the super block free inode counter: sector size
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* the agi hash list and counters: sector size
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* the inode btree entry: block size
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* the on disk inode before ours in the agi hash list: inode cluster size
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* the inode btree: max depth * blocksize
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* the allocation btrees: 2 trees * (max depth - 1) * block size
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*/
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STATIC uint
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xfs_calc_ifree_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(1, XFS_FSB_TO_B(mp, 1)) +
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MAX((__uint16_t)XFS_FSB_TO_B(mp, 1),
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XFS_INODE_CLUSTER_SIZE(mp)) +
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xfs_calc_buf_res(1, 0) +
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xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
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mp->m_in_maxlevels, 0) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1));
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}
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/*
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* When only changing the inode we log the inode and possibly the superblock
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* We also add a bit of slop for the transaction stuff.
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*/
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STATIC uint
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xfs_calc_ichange_reservation(
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struct xfs_mount *mp)
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{
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return XFS_DQUOT_LOGRES(mp) +
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mp->m_sb.sb_inodesize +
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mp->m_sb.sb_sectsize +
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512;
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}
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/*
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* Growing the data section of the filesystem.
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* superblock
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* agi and agf
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* allocation btrees
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*/
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STATIC uint
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xfs_calc_growdata_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(3, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1));
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}
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/*
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* Growing the rt section of the filesystem.
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* In the first set of transactions (ALLOC) we allocate space to the
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* bitmap or summary files.
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* superblock: sector size
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* agf of the ag from which the extent is allocated: sector size
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* bmap btree for bitmap/summary inode: max depth * blocksize
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* bitmap/summary inode: inode size
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* allocation btrees for 1 block alloc: 2 * (2 * maxdepth - 1) * blocksize
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*/
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STATIC uint
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xfs_calc_growrtalloc_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK),
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XFS_FSB_TO_B(mp, 1)) +
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xfs_calc_buf_res(1, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(XFS_ALLOCFREE_LOG_COUNT(mp, 1),
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XFS_FSB_TO_B(mp, 1));
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}
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/*
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* Growing the rt section of the filesystem.
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* In the second set of transactions (ZERO) we zero the new metadata blocks.
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* one bitmap/summary block: blocksize
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*/
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STATIC uint
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xfs_calc_growrtzero_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(1, mp->m_sb.sb_blocksize);
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}
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/*
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* Growing the rt section of the filesystem.
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* In the third set of transactions (FREE) we update metadata without
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* allocating any new blocks.
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* superblock: sector size
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* bitmap inode: inode size
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* summary inode: inode size
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* one bitmap block: blocksize
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* summary blocks: new summary size
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*/
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STATIC uint
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xfs_calc_growrtfree_reservation(
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struct xfs_mount *mp)
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{
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return xfs_calc_buf_res(1, mp->m_sb.sb_sectsize) +
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xfs_calc_buf_res(2, mp->m_sb.sb_inodesize) +
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xfs_calc_buf_res(1, mp->m_sb.sb_blocksize) +
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||||
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);
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialize the precomputed transaction reservation values
|
||||
* in the mount structure.
|
||||
@@ -679,36 +56,7 @@ 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);
|
||||
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);
|
||||
xfs_trans_resv_calc(mp, &mp->m_reservations);
|
||||
}
|
||||
|
||||
/*
|
||||
|
||||
Reference in New Issue
Block a user