diff options
Diffstat (limited to 'fs/xfs/xfs_rmap_item.c')
-rw-r--r-- | fs/xfs/xfs_rmap_item.c | 372 |
1 files changed, 282 insertions, 90 deletions
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c index e473124e29cc..c99700318ec2 100644 --- a/fs/xfs/xfs_rmap_item.c +++ b/fs/xfs/xfs_rmap_item.c @@ -21,6 +21,9 @@ #include "xfs_log_priv.h" #include "xfs_log_recover.h" #include "xfs_ag.h" +#include "xfs_btree.h" +#include "xfs_trace.h" +#include "xfs_rtgroup.h" struct kmem_cache *xfs_rui_cache; struct kmem_cache *xfs_rud_cache; @@ -74,6 +77,11 @@ xfs_rui_item_size( *nbytes += xfs_rui_log_format_sizeof(ruip->rui_format.rui_nextents); } +unsigned int xfs_rui_log_space(unsigned int nr) +{ + return xlog_item_space(1, xfs_rui_log_format_sizeof(nr)); +} + /* * This is called to fill in the vector of log iovecs for the * given rui log item. We use only 1 iovec, and we point that @@ -92,7 +100,9 @@ xfs_rui_item_format( ASSERT(atomic_read(&ruip->rui_next_extent) == ruip->rui_format.rui_nextents); - ruip->rui_format.rui_type = XFS_LI_RUI; + ASSERT(lip->li_type == XFS_LI_RUI || lip->li_type == XFS_LI_RUI_RT); + + ruip->rui_format.rui_type = lip->li_type; ruip->rui_format.rui_size = 1; xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUI_FORMAT, &ruip->rui_format, @@ -135,12 +145,15 @@ xfs_rui_item_release( STATIC struct xfs_rui_log_item * xfs_rui_init( struct xfs_mount *mp, + unsigned short item_type, uint nextents) { struct xfs_rui_log_item *ruip; ASSERT(nextents > 0); + ASSERT(item_type == XFS_LI_RUI || item_type == XFS_LI_RUI_RT); + if (nextents > XFS_RUI_MAX_FAST_EXTENTS) ruip = kzalloc(xfs_rui_log_item_sizeof(nextents), GFP_KERNEL | __GFP_NOFAIL); @@ -148,7 +161,7 @@ xfs_rui_init( ruip = kmem_cache_zalloc(xfs_rui_cache, GFP_KERNEL | __GFP_NOFAIL); - xfs_log_item_init(mp, &ruip->rui_item, XFS_LI_RUI, &xfs_rui_item_ops); + xfs_log_item_init(mp, &ruip->rui_item, item_type, &xfs_rui_item_ops); ruip->rui_format.rui_nextents = nextents; ruip->rui_format.rui_id = (uintptr_t)(void *)ruip; atomic_set(&ruip->rui_next_extent, 0); @@ -172,6 +185,11 @@ xfs_rud_item_size( *nbytes += sizeof(struct xfs_rud_log_format); } +unsigned int xfs_rud_log_space(void) +{ + return xlog_item_space(1, sizeof(struct xfs_rud_log_format)); +} + /* * This is called to fill in the vector of log iovecs for the * given rud log item. We use only 1 iovec, and we point that @@ -187,7 +205,9 @@ xfs_rud_item_format( struct xfs_rud_log_item *rudp = RUD_ITEM(lip); struct xfs_log_iovec *vecp = NULL; - rudp->rud_format.rud_type = XFS_LI_RUD; + ASSERT(lip->li_type == XFS_LI_RUD || lip->li_type == XFS_LI_RUD_RT); + + rudp->rud_format.rud_type = lip->li_type; rudp->rud_format.rud_size = 1; xlog_copy_iovec(lv, &vecp, XLOG_REG_TYPE_RUD_FORMAT, &rudp->rud_format, @@ -226,47 +246,17 @@ static const struct xfs_item_ops xfs_rud_item_ops = { .iop_intent = xfs_rud_item_intent, }; -/* Set the map extent flags for this reverse mapping. */ -static void -xfs_trans_set_rmap_flags( - struct xfs_map_extent *map, - enum xfs_rmap_intent_type type, - int whichfork, - xfs_exntst_t state) +static inline struct xfs_rmap_intent *ri_entry(const struct list_head *e) { - map->me_flags = 0; - if (state == XFS_EXT_UNWRITTEN) - map->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN; - if (whichfork == XFS_ATTR_FORK) - map->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK; - switch (type) { - case XFS_RMAP_MAP: - map->me_flags |= XFS_RMAP_EXTENT_MAP; - break; - case XFS_RMAP_MAP_SHARED: - map->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED; - break; - case XFS_RMAP_UNMAP: - map->me_flags |= XFS_RMAP_EXTENT_UNMAP; - break; - case XFS_RMAP_UNMAP_SHARED: - map->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED; - break; - case XFS_RMAP_CONVERT: - map->me_flags |= XFS_RMAP_EXTENT_CONVERT; - break; - case XFS_RMAP_CONVERT_SHARED: - map->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED; - break; - case XFS_RMAP_ALLOC: - map->me_flags |= XFS_RMAP_EXTENT_ALLOC; - break; - case XFS_RMAP_FREE: - map->me_flags |= XFS_RMAP_EXTENT_FREE; - break; - default: - ASSERT(0); - } + return list_entry(e, struct xfs_rmap_intent, ri_list); +} + +static inline bool +xfs_rui_item_isrt(const struct xfs_log_item *lip) +{ + ASSERT(lip->li_type == XFS_LI_RUI || lip->li_type == XFS_LI_RUI_RT); + + return lip->li_type == XFS_LI_RUI_RT; } /* Sort rmap intents by AG. */ @@ -276,13 +266,10 @@ xfs_rmap_update_diff_items( const struct list_head *a, const struct list_head *b) { - struct xfs_rmap_intent *ra; - struct xfs_rmap_intent *rb; + struct xfs_rmap_intent *ra = ri_entry(a); + struct xfs_rmap_intent *rb = ri_entry(b); - ra = container_of(a, struct xfs_rmap_intent, ri_list); - rb = container_of(b, struct xfs_rmap_intent, ri_list); - - return ra->ri_pag->pag_agno - rb->ri_pag->pag_agno; + return ra->ri_group->xg_gno - rb->ri_group->xg_gno; } /* Log rmap updates in the intent item. */ @@ -307,23 +294,57 @@ xfs_rmap_update_log_item( map->me_startblock = ri->ri_bmap.br_startblock; map->me_startoff = ri->ri_bmap.br_startoff; map->me_len = ri->ri_bmap.br_blockcount; - xfs_trans_set_rmap_flags(map, ri->ri_type, ri->ri_whichfork, - ri->ri_bmap.br_state); + + map->me_flags = 0; + if (ri->ri_bmap.br_state == XFS_EXT_UNWRITTEN) + map->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN; + if (ri->ri_whichfork == XFS_ATTR_FORK) + map->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK; + switch (ri->ri_type) { + case XFS_RMAP_MAP: + map->me_flags |= XFS_RMAP_EXTENT_MAP; + break; + case XFS_RMAP_MAP_SHARED: + map->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED; + break; + case XFS_RMAP_UNMAP: + map->me_flags |= XFS_RMAP_EXTENT_UNMAP; + break; + case XFS_RMAP_UNMAP_SHARED: + map->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED; + break; + case XFS_RMAP_CONVERT: + map->me_flags |= XFS_RMAP_EXTENT_CONVERT; + break; + case XFS_RMAP_CONVERT_SHARED: + map->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED; + break; + case XFS_RMAP_ALLOC: + map->me_flags |= XFS_RMAP_EXTENT_ALLOC; + break; + case XFS_RMAP_FREE: + map->me_flags |= XFS_RMAP_EXTENT_FREE; + break; + default: + ASSERT(0); + } } static struct xfs_log_item * -xfs_rmap_update_create_intent( +__xfs_rmap_update_create_intent( struct xfs_trans *tp, struct list_head *items, unsigned int count, - bool sort) + bool sort, + unsigned short item_type) { struct xfs_mount *mp = tp->t_mountp; - struct xfs_rui_log_item *ruip = xfs_rui_init(mp, count); + struct xfs_rui_log_item *ruip; struct xfs_rmap_intent *ri; ASSERT(count > 0); + ruip = xfs_rui_init(mp, item_type, count); if (sort) list_sort(mp, items, xfs_rmap_update_diff_items); list_for_each_entry(ri, items, ri_list) @@ -331,6 +352,23 @@ xfs_rmap_update_create_intent( return &ruip->rui_item; } +static struct xfs_log_item * +xfs_rmap_update_create_intent( + struct xfs_trans *tp, + struct list_head *items, + unsigned int count, + bool sort) +{ + return __xfs_rmap_update_create_intent(tp, items, count, sort, + XFS_LI_RUI); +} + +static inline unsigned short +xfs_rud_type_from_rui(const struct xfs_rui_log_item *ruip) +{ + return xfs_rui_item_isrt(&ruip->rui_item) ? XFS_LI_RUD_RT : XFS_LI_RUD; +} + /* Get an RUD so we can process all the deferred rmap updates. */ static struct xfs_log_item * xfs_rmap_update_create_done( @@ -342,32 +380,47 @@ xfs_rmap_update_create_done( struct xfs_rud_log_item *rudp; rudp = kmem_cache_zalloc(xfs_rud_cache, GFP_KERNEL | __GFP_NOFAIL); - xfs_log_item_init(tp->t_mountp, &rudp->rud_item, XFS_LI_RUD, - &xfs_rud_item_ops); + xfs_log_item_init(tp->t_mountp, &rudp->rud_item, + xfs_rud_type_from_rui(ruip), &xfs_rud_item_ops); rudp->rud_ruip = ruip; rudp->rud_format.rud_rui_id = ruip->rui_format.rui_id; return &rudp->rud_item; } -/* Take a passive ref to the AG containing the space we're rmapping. */ +/* Add this deferred RUI to the transaction. */ void -xfs_rmap_update_get_group( - struct xfs_mount *mp, +xfs_rmap_defer_add( + struct xfs_trans *tp, struct xfs_rmap_intent *ri) { - xfs_agnumber_t agno; + struct xfs_mount *mp = tp->t_mountp; + + /* + * Deferred rmap updates for the realtime and data sections must use + * separate transactions to finish deferred work because updates to + * realtime metadata files can lock AGFs to allocate btree blocks and + * we don't want that mixing with the AGF locks taken to finish data + * section updates. + */ + ri->ri_group = xfs_group_intent_get(mp, ri->ri_bmap.br_startblock, + ri->ri_realtime ? XG_TYPE_RTG : XG_TYPE_AG); - agno = XFS_FSB_TO_AGNO(mp, ri->ri_bmap.br_startblock); - ri->ri_pag = xfs_perag_intent_get(mp, agno); + trace_xfs_rmap_defer(mp, ri); + xfs_defer_add(tp, &ri->ri_list, ri->ri_realtime ? + &xfs_rtrmap_update_defer_type : + &xfs_rmap_update_defer_type); } -/* Release a passive AG ref after finishing rmapping work. */ -static inline void -xfs_rmap_update_put_group( - struct xfs_rmap_intent *ri) +/* Cancel a deferred rmap update. */ +STATIC void +xfs_rmap_update_cancel_item( + struct list_head *item) { - xfs_perag_intent_put(ri->ri_pag); + struct xfs_rmap_intent *ri = ri_entry(item); + + xfs_group_intent_put(ri->ri_group); + kmem_cache_free(xfs_rmap_intent_cache, ri); } /* Process a deferred rmap update. */ @@ -378,43 +431,45 @@ xfs_rmap_update_finish_item( struct list_head *item, struct xfs_btree_cur **state) { - struct xfs_rmap_intent *ri; + struct xfs_rmap_intent *ri = ri_entry(item); int error; - ri = container_of(item, struct xfs_rmap_intent, ri_list); - error = xfs_rmap_finish_one(tp, ri, state); - xfs_rmap_update_put_group(ri); - kmem_cache_free(xfs_rmap_intent_cache, ri); + xfs_rmap_update_cancel_item(item); return error; } -/* Abort all pending RUIs. */ +/* Clean up after calling xfs_rmap_finish_one. */ STATIC void -xfs_rmap_update_abort_intent( - struct xfs_log_item *intent) +xfs_rmap_finish_one_cleanup( + struct xfs_trans *tp, + struct xfs_btree_cur *rcur, + int error) { - xfs_rui_release(RUI_ITEM(intent)); + struct xfs_buf *agbp = NULL; + + if (rcur == NULL) + return; + agbp = rcur->bc_ag.agbp; + xfs_btree_del_cursor(rcur, error); + if (error && agbp) + xfs_trans_brelse(tp, agbp); } -/* Cancel a deferred rmap update. */ +/* Abort all pending RUIs. */ STATIC void -xfs_rmap_update_cancel_item( - struct list_head *item) +xfs_rmap_update_abort_intent( + struct xfs_log_item *intent) { - struct xfs_rmap_intent *ri; - - ri = container_of(item, struct xfs_rmap_intent, ri_list); - - xfs_rmap_update_put_group(ri); - kmem_cache_free(xfs_rmap_intent_cache, ri); + xfs_rui_release(RUI_ITEM(intent)); } /* Is this recovered RUI ok? */ static inline bool xfs_rui_validate_map( struct xfs_mount *mp, + bool isrt, struct xfs_map_extent *map) { if (!xfs_has_rmapbt(mp)) @@ -444,6 +499,9 @@ xfs_rui_validate_map( if (!xfs_verify_fileext(mp, map->me_startoff, map->me_len)) return false; + if (isrt) + return xfs_verify_rtbext(mp, map->me_startblock, map->me_len); + return xfs_verify_fsbext(mp, map->me_startblock, map->me_len); } @@ -451,6 +509,7 @@ static inline void xfs_rui_recover_work( struct xfs_mount *mp, struct xfs_defer_pending *dfp, + bool isrt, const struct xfs_map_extent *map) { struct xfs_rmap_intent *ri; @@ -495,7 +554,9 @@ xfs_rui_recover_work( ri->ri_bmap.br_blockcount = map->me_len; ri->ri_bmap.br_state = (map->me_flags & XFS_RMAP_EXTENT_UNWRITTEN) ? XFS_EXT_UNWRITTEN : XFS_EXT_NORM; - xfs_rmap_update_get_group(mp, ri); + ri->ri_group = xfs_group_intent_get(mp, map->me_startblock, + isrt ? XG_TYPE_RTG : XG_TYPE_AG); + ri->ri_realtime = isrt; xfs_defer_add_item(dfp, &ri->ri_list); } @@ -514,6 +575,7 @@ xfs_rmap_recover_work( struct xfs_rui_log_item *ruip = RUI_ITEM(lip); struct xfs_trans *tp; struct xfs_mount *mp = lip->li_log->l_mp; + bool isrt = xfs_rui_item_isrt(lip); int i; int error = 0; @@ -523,7 +585,7 @@ xfs_rmap_recover_work( * just toss the RUI. */ for (i = 0; i < ruip->rui_format.rui_nextents; i++) { - if (!xfs_rui_validate_map(mp, + if (!xfs_rui_validate_map(mp, isrt, &ruip->rui_format.rui_extents[i])) { XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, &ruip->rui_format, @@ -531,7 +593,8 @@ xfs_rmap_recover_work( return -EFSCORRUPTED; } - xfs_rui_recover_work(mp, dfp, &ruip->rui_format.rui_extents[i]); + xfs_rui_recover_work(mp, dfp, isrt, + &ruip->rui_format.rui_extents[i]); } resv = xlog_recover_resv(&M_RES(mp)->tr_itruncate); @@ -566,10 +629,13 @@ xfs_rmap_relog_intent( struct xfs_map_extent *map; unsigned int count; + ASSERT(intent->li_type == XFS_LI_RUI || + intent->li_type == XFS_LI_RUI_RT); + count = RUI_ITEM(intent)->rui_format.rui_nextents; map = RUI_ITEM(intent)->rui_format.rui_extents; - ruip = xfs_rui_init(tp->t_mountp, count); + ruip = xfs_rui_init(tp->t_mountp, intent->li_type, count); memcpy(ruip->rui_format.rui_extents, map, count * sizeof(*map)); atomic_set(&ruip->rui_next_extent, count); @@ -589,6 +655,47 @@ const struct xfs_defer_op_type xfs_rmap_update_defer_type = { .relog_intent = xfs_rmap_relog_intent, }; +#ifdef CONFIG_XFS_RT +static struct xfs_log_item * +xfs_rtrmap_update_create_intent( + struct xfs_trans *tp, + struct list_head *items, + unsigned int count, + bool sort) +{ + return __xfs_rmap_update_create_intent(tp, items, count, sort, + XFS_LI_RUI_RT); +} + +/* Clean up after calling xfs_rmap_finish_one. */ +STATIC void +xfs_rtrmap_finish_one_cleanup( + struct xfs_trans *tp, + struct xfs_btree_cur *rcur, + int error) +{ + if (rcur) + xfs_btree_del_cursor(rcur, error); +} + +const struct xfs_defer_op_type xfs_rtrmap_update_defer_type = { + .name = "rtrmap", + .max_items = XFS_RUI_MAX_FAST_EXTENTS, + .create_intent = xfs_rtrmap_update_create_intent, + .abort_intent = xfs_rmap_update_abort_intent, + .create_done = xfs_rmap_update_create_done, + .finish_item = xfs_rmap_update_finish_item, + .finish_cleanup = xfs_rtrmap_finish_one_cleanup, + .cancel_item = xfs_rmap_update_cancel_item, + .recover_work = xfs_rmap_recover_work, + .relog_intent = xfs_rmap_relog_intent, +}; +#else +const struct xfs_defer_op_type xfs_rtrmap_update_defer_type = { + .name = "rtrmap", +}; +#endif + STATIC bool xfs_rui_item_match( struct xfs_log_item *lip, @@ -654,7 +761,7 @@ xlog_recover_rui_commit_pass2( return -EFSCORRUPTED; } - ruip = xfs_rui_init(mp, rui_formatp->rui_nextents); + ruip = xfs_rui_init(mp, ITEM_TYPE(item), rui_formatp->rui_nextents); xfs_rui_copy_format(&ruip->rui_format, rui_formatp); atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents); @@ -668,6 +775,61 @@ const struct xlog_recover_item_ops xlog_rui_item_ops = { .commit_pass2 = xlog_recover_rui_commit_pass2, }; +#ifdef CONFIG_XFS_RT +STATIC int +xlog_recover_rtrui_commit_pass2( + struct xlog *log, + struct list_head *buffer_list, + struct xlog_recover_item *item, + xfs_lsn_t lsn) +{ + struct xfs_mount *mp = log->l_mp; + struct xfs_rui_log_item *ruip; + struct xfs_rui_log_format *rui_formatp; + size_t len; + + rui_formatp = item->ri_buf[0].i_addr; + + if (item->ri_buf[0].i_len < xfs_rui_log_format_sizeof(0)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + len = xfs_rui_log_format_sizeof(rui_formatp->rui_nextents); + if (item->ri_buf[0].i_len != len) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + ruip = xfs_rui_init(mp, ITEM_TYPE(item), rui_formatp->rui_nextents); + xfs_rui_copy_format(&ruip->rui_format, rui_formatp); + atomic_set(&ruip->rui_next_extent, rui_formatp->rui_nextents); + + xlog_recover_intent_item(log, &ruip->rui_item, lsn, + &xfs_rtrmap_update_defer_type); + return 0; +} +#else +STATIC int +xlog_recover_rtrui_commit_pass2( + struct xlog *log, + struct list_head *buffer_list, + struct xlog_recover_item *item, + xfs_lsn_t lsn) +{ + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + item->ri_buf[0].i_addr, item->ri_buf[0].i_len); + return -EFSCORRUPTED; +} +#endif + +const struct xlog_recover_item_ops xlog_rtrui_item_ops = { + .item_type = XFS_LI_RUI_RT, + .commit_pass2 = xlog_recover_rtrui_commit_pass2, +}; + /* * This routine is called when an RUD format structure is found in a committed * transaction in the log. Its purpose is to cancel the corresponding RUI if it @@ -699,3 +861,33 @@ const struct xlog_recover_item_ops xlog_rud_item_ops = { .item_type = XFS_LI_RUD, .commit_pass2 = xlog_recover_rud_commit_pass2, }; + +#ifdef CONFIG_XFS_RT +STATIC int +xlog_recover_rtrud_commit_pass2( + struct xlog *log, + struct list_head *buffer_list, + struct xlog_recover_item *item, + xfs_lsn_t lsn) +{ + struct xfs_rud_log_format *rud_formatp; + + rud_formatp = item->ri_buf[0].i_addr; + if (item->ri_buf[0].i_len != sizeof(struct xfs_rud_log_format)) { + XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp, + rud_formatp, item->ri_buf[0].i_len); + return -EFSCORRUPTED; + } + + xlog_recover_release_intent(log, XFS_LI_RUI_RT, + rud_formatp->rud_rui_id); + return 0; +} +#else +# define xlog_recover_rtrud_commit_pass2 xlog_recover_rtrui_commit_pass2 +#endif + +const struct xlog_recover_item_ops xlog_rtrud_item_ops = { + .item_type = XFS_LI_RUD_RT, + .commit_pass2 = xlog_recover_rtrud_commit_pass2, +}; |