From 8f79405527b50fe27cffcb7081890b5c68439b4f Mon Sep 17 00:00:00 2001 From: Nathan Scott Date: Tue, 14 Mar 2006 13:32:41 +1100 Subject: [XFS] Reduce complexity in xfs_trans_init by pushing complex macros out into functions and hence reduce the stack footprint there. SGI-PV: 947312 SGI-Modid: xfs-linux-melb:xfs-kern:25360a Signed-off-by: Nathan Scott --- fs/xfs/xfs_trans.c | 187 +++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 153 insertions(+), 34 deletions(-) diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index d3d714e..6a2a1e07 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -55,10 +55,141 @@ STATIC void xfs_trans_committed(xfs_trans_t *, int); STATIC void xfs_trans_chunk_committed(xfs_log_item_chunk_t *, xfs_lsn_t, int); STATIC void xfs_trans_free(xfs_trans_t *); -kmem_zone_t *xfs_trans_zone; +kmem_zone_t *xfs_trans_zone; /* + * Reservation functions here avoid a huge stack in xfs_trans_init + * due to register overflow from temporaries in the calculations. + */ + +STATIC uint +xfs_calc_write_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_itruncate_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_rename_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_link_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_LINK_LOG_RES(mp); +} + +STATIC uint +xfs_calc_remove_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_symlink_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_create_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_mkdir_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_ifree_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_ichange_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_growdata_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_GROWDATA_LOG_RES(mp); +} + +STATIC uint +xfs_calc_growrtalloc_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_GROWRTALLOC_LOG_RES(mp); +} + +STATIC uint +xfs_calc_growrtzero_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_GROWRTZERO_LOG_RES(mp); +} + +STATIC uint +xfs_calc_growrtfree_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_GROWRTFREE_LOG_RES(mp); +} + +STATIC uint +xfs_calc_swrite_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_SWRITE_LOG_RES(mp); +} + +STATIC uint +xfs_calc_writeid_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_WRITEID_LOG_RES(mp); +} + +STATIC uint +xfs_calc_addafork_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_attrinval_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ATTRINVAL_LOG_RES(mp); +} + +STATIC uint +xfs_calc_attrset_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_attrrm_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp); +} + +STATIC uint +xfs_calc_clear_agi_bucket_reservation(xfs_mount_t *mp) +{ + return XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp); +} + +/* * Initialize the precomputed transaction reservation values * in the mount structure. */ @@ -69,39 +200,27 @@ xfs_trans_init( xfs_trans_reservations_t *resp; resp = &(mp->m_reservations); - resp->tr_write = - (uint)(XFS_CALC_WRITE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_itruncate = - (uint)(XFS_CALC_ITRUNCATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_rename = - (uint)(XFS_CALC_RENAME_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_link = (uint)XFS_CALC_LINK_LOG_RES(mp); - resp->tr_remove = - (uint)(XFS_CALC_REMOVE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_symlink = - (uint)(XFS_CALC_SYMLINK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_create = - (uint)(XFS_CALC_CREATE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_mkdir = - (uint)(XFS_CALC_MKDIR_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_ifree = - (uint)(XFS_CALC_IFREE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_ichange = - (uint)(XFS_CALC_ICHANGE_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_growdata = (uint)XFS_CALC_GROWDATA_LOG_RES(mp); - resp->tr_swrite = (uint)XFS_CALC_SWRITE_LOG_RES(mp); - resp->tr_writeid = (uint)XFS_CALC_WRITEID_LOG_RES(mp); - resp->tr_addafork = - (uint)(XFS_CALC_ADDAFORK_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_attrinval = (uint)XFS_CALC_ATTRINVAL_LOG_RES(mp); - resp->tr_attrset = - (uint)(XFS_CALC_ATTRSET_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_attrrm = - (uint)(XFS_CALC_ATTRRM_LOG_RES(mp) + XFS_DQUOT_LOGRES(mp)); - resp->tr_clearagi = (uint)XFS_CALC_CLEAR_AGI_BUCKET_LOG_RES(mp); - resp->tr_growrtalloc = (uint)XFS_CALC_GROWRTALLOC_LOG_RES(mp); - resp->tr_growrtzero = (uint)XFS_CALC_GROWRTZERO_LOG_RES(mp); - resp->tr_growrtfree = (uint)XFS_CALC_GROWRTFREE_LOG_RES(mp); + 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_attrset = xfs_calc_attrset_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); } /* -- cgit v1.1