diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2022-04-25 18:38:14 -0700 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2022-04-28 10:25:42 -0700 |
| commit | b037c4eed2df4568a7702cd512d26625962f95b9 (patch) | |
| tree | f486c5504d4793ef91e0aa6e7784584f53f8727e /fs/xfs/libxfs/xfs_trans_resv.h | |
| parent | 4ecf9e7c69edcb8f5b98df471dd026419b881d2b (diff) | |
xfs: reduce transaction reservations with reflink
Before to the introduction of deferred refcount operations, reflink
would try to cram refcount btree updates into the same transaction as an
allocation or a free event. Mainline XFS has never actually done that,
but we never refactored the transaction reservations to reflect that we
now do all refcount updates in separate transactions. Fix this to
reduce the transaction reservation size even farther, so that between
this patch and the previous one, we reduce the tr_write and tr_itruncate
sizes by 66%.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_trans_resv.h')
| -rw-r--r-- | fs/xfs/libxfs/xfs_trans_resv.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_trans_resv.h b/fs/xfs/libxfs/xfs_trans_resv.h index fa330e646dc5..22b99042127a 100644 --- a/fs/xfs/libxfs/xfs_trans_resv.h +++ b/fs/xfs/libxfs/xfs_trans_resv.h @@ -98,4 +98,8 @@ struct xfs_trans_resv { void xfs_trans_resv_calc(struct xfs_mount *mp, struct xfs_trans_resv *resp); uint xfs_allocfree_log_count(struct xfs_mount *mp, uint num_ops); +unsigned int xfs_calc_itruncate_reservation_minlogsize(struct xfs_mount *mp); +unsigned int xfs_calc_write_reservation_minlogsize(struct xfs_mount *mp); +unsigned int xfs_calc_qm_dqalloc_reservation_minlogsize(struct xfs_mount *mp); + #endif /* __XFS_TRANS_RESV_H__ */ |