X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=fs%2Fxfs%2Fxfs_trans.c;h=ee2721e0de4d7fd700e22e8a3b635255c14696cc;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=d3d714e6b32a6ff5fc2b800229806ed385aa3a05;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c index d3d714e6b..ee2721e0d 100644 --- a/fs/xfs/xfs_trans.c +++ b/fs/xfs/xfs_trans.c @@ -24,7 +24,6 @@ #include "xfs_trans.h" #include "xfs_sb.h" #include "xfs_ag.h" -#include "xfs_dir.h" #include "xfs_dir2.h" #include "xfs_dmapi.h" #include "xfs_mount.h" @@ -33,7 +32,6 @@ #include "xfs_bmap_btree.h" #include "xfs_alloc_btree.h" #include "xfs_ialloc_btree.h" -#include "xfs_dir_sf.h" #include "xfs_dir2_sf.h" #include "xfs_attr_sf.h" #include "xfs_dinode.h" @@ -55,9 +53,140 @@ 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) + XFS_DQUOT_LOGRES(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 +198,27 @@ 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); } /* @@ -117,11 +234,8 @@ xfs_trans_alloc( xfs_mount_t *mp, uint type) { - fs_check_frozen(XFS_MTOVFS(mp), SB_FREEZE_TRANS); - atomic_inc(&mp->m_active_trans); - - return (_xfs_trans_alloc(mp, type)); - + vfs_wait_for_freeze(XFS_MTOVFS(mp), SB_FREEZE_TRANS); + return _xfs_trans_alloc(mp, type); } xfs_trans_t * @@ -131,12 +245,9 @@ _xfs_trans_alloc( { xfs_trans_t *tp; - ASSERT(xfs_trans_zone != NULL); - tp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP); + atomic_inc(&mp->m_active_trans); - /* - * Initialize the transaction structure. - */ + tp = kmem_zone_zalloc(xfs_trans_zone, KM_SLEEP); tp->t_magic = XFS_TRANS_MAGIC; tp->t_type = type; tp->t_mountp = mp; @@ -144,8 +255,7 @@ _xfs_trans_alloc( tp->t_busy_free = XFS_LBC_NUM_SLOTS; XFS_LIC_INIT(&(tp->t_items)); XFS_LBC_INIT(&(tp->t_busy)); - - return (tp); + return tp; } /* @@ -184,7 +294,7 @@ xfs_trans_dup( tp->t_blk_res = tp->t_blk_res_used; ntp->t_rtx_res = tp->t_rtx_res - tp->t_rtx_res_used; tp->t_rtx_res = tp->t_rtx_res_used; - PFLAGS_DUP(&tp->t_pflags, &ntp->t_pflags); + ntp->t_pflags = tp->t_pflags; XFS_TRANS_DUP_DQINFO(tp->t_mountp, tp, ntp); @@ -216,14 +326,11 @@ xfs_trans_reserve( uint logcount) { int log_flags; - int error; - int rsvd; - - error = 0; - rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0; + int error = 0; + int rsvd = (tp->t_flags & XFS_TRANS_RESERVE) != 0; /* Mark this thread as being in a transaction */ - PFLAGS_SET_FSTRANS(&tp->t_pflags); + current_set_flags_nested(&tp->t_pflags, PF_FSTRANS); /* * Attempt to reserve the needed disk blocks by decrementing @@ -234,7 +341,7 @@ xfs_trans_reserve( error = xfs_mod_incore_sb(tp->t_mountp, XFS_SBS_FDBLOCKS, -blocks, rsvd); if (error != 0) { - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); return (XFS_ERROR(ENOSPC)); } tp->t_blk_res += blocks; @@ -307,9 +414,9 @@ undo_blocks: tp->t_blk_res = 0; } - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); - return (error); + return error; } @@ -371,7 +478,7 @@ xfs_trans_mod_sb( case XFS_TRANS_SB_RES_FREXTENTS: /* * The allocation has already been applied to the - * in-core superblocks's counter. This should only + * in-core superblock's counter. This should only * be applied to the on-disk superblock. */ ASSERT(delta < 0); @@ -492,7 +599,7 @@ xfs_trans_apply_sb_deltas( if (whole) /* - * Log the whole thing, the fields are discontiguous. + * Log the whole thing, the fields are noncontiguous. */ xfs_trans_log_buf(tp, bp, 0, sizeof(xfs_sb_t) - 1); else @@ -550,7 +657,7 @@ xfs_trans_unreserve_and_mod_sb( /* * Apply any superblock modifications to the in-core version. * The t_res_fdblocks_delta and t_res_frextents_delta fields are - * explicity NOT applied to the in-core superblock. + * explicitly NOT applied to the in-core superblock. * The idea is that that has already been done. */ if (tp->t_flags & XFS_TRANS_SB_DIRTY) { @@ -700,7 +807,7 @@ shut_us_down: if (commit_lsn == -1 && !shutdown) shutdown = XFS_ERROR(EIO); } - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); xfs_trans_free_items(tp, shutdown? XFS_TRANS_ABORT : 0); xfs_trans_free_busy(tp); xfs_trans_free(tp); @@ -727,7 +834,7 @@ shut_us_down: */ nvec = xfs_trans_count_vecs(tp); if (nvec == 0) { - xfs_force_shutdown(mp, XFS_LOG_IO_ERROR); + xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR); goto shut_us_down; } else if (nvec <= XFS_TRANS_LOGVEC_COUNT) { log_vector = log_vector_fast; @@ -765,7 +872,7 @@ shut_us_down: * had pinned, clean up, free trans structure, and return error. */ if (error || commit_lsn == -1) { - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); xfs_trans_uncommit(tp, flags|XFS_TRANS_ABORT); return XFS_ERROR(EIO); } @@ -807,7 +914,7 @@ shut_us_down: /* * Mark this thread as no longer being in a transaction */ - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); /* * Once all the items of the transaction have been copied @@ -1029,7 +1136,7 @@ xfs_trans_cancel( */ if ((tp->t_flags & XFS_TRANS_DIRTY) && !XFS_FORCED_SHUTDOWN(mp)) { XFS_ERROR_REPORT("xfs_trans_cancel", XFS_ERRLEVEL_LOW, mp); - xfs_force_shutdown(mp, XFS_CORRUPT_INCORE); + xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE); } #ifdef DEBUG if (!(flags & XFS_TRANS_ABORT)) { @@ -1063,7 +1170,7 @@ xfs_trans_cancel( } /* mark this thread as no longer being in a transaction */ - PFLAGS_RESTORE_FSTRANS(&tp->t_pflags); + current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS); xfs_trans_free_items(tp, flags); xfs_trans_free_busy(tp);