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Diffstat (limited to 'fs/xfs/xfs_trans_rmap.c')
-rw-r--r--fs/xfs/xfs_trans_rmap.c257
1 files changed, 0 insertions, 257 deletions
diff --git a/fs/xfs/xfs_trans_rmap.c b/fs/xfs/xfs_trans_rmap.c
deleted file mode 100644
index 5c7936b1be13..000000000000
--- a/fs/xfs/xfs_trans_rmap.c
+++ /dev/null
@@ -1,257 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Copyright (C) 2016 Oracle. All Rights Reserved.
- * Author: Darrick J. Wong <darrick.wong@oracle.com>
- */
-#include "xfs.h"
-#include "xfs_fs.h"
-#include "xfs_shared.h"
-#include "xfs_format.h"
-#include "xfs_log_format.h"
-#include "xfs_trans_resv.h"
-#include "xfs_mount.h"
-#include "xfs_defer.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
-#include "xfs_rmap_item.h"
-#include "xfs_alloc.h"
-#include "xfs_rmap.h"
-
-/* Set the map extent flags for this reverse mapping. */
-static void
-xfs_trans_set_rmap_flags(
- struct xfs_map_extent *rmap,
- enum xfs_rmap_intent_type type,
- int whichfork,
- xfs_exntst_t state)
-{
- rmap->me_flags = 0;
- if (state == XFS_EXT_UNWRITTEN)
- rmap->me_flags |= XFS_RMAP_EXTENT_UNWRITTEN;
- if (whichfork == XFS_ATTR_FORK)
- rmap->me_flags |= XFS_RMAP_EXTENT_ATTR_FORK;
- switch (type) {
- case XFS_RMAP_MAP:
- rmap->me_flags |= XFS_RMAP_EXTENT_MAP;
- break;
- case XFS_RMAP_MAP_SHARED:
- rmap->me_flags |= XFS_RMAP_EXTENT_MAP_SHARED;
- break;
- case XFS_RMAP_UNMAP:
- rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP;
- break;
- case XFS_RMAP_UNMAP_SHARED:
- rmap->me_flags |= XFS_RMAP_EXTENT_UNMAP_SHARED;
- break;
- case XFS_RMAP_CONVERT:
- rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT;
- break;
- case XFS_RMAP_CONVERT_SHARED:
- rmap->me_flags |= XFS_RMAP_EXTENT_CONVERT_SHARED;
- break;
- case XFS_RMAP_ALLOC:
- rmap->me_flags |= XFS_RMAP_EXTENT_ALLOC;
- break;
- case XFS_RMAP_FREE:
- rmap->me_flags |= XFS_RMAP_EXTENT_FREE;
- break;
- default:
- ASSERT(0);
- }
-}
-
-struct xfs_rud_log_item *
-xfs_trans_get_rud(
- struct xfs_trans *tp,
- struct xfs_rui_log_item *ruip)
-{
- struct xfs_rud_log_item *rudp;
-
- rudp = xfs_rud_init(tp->t_mountp, ruip);
- xfs_trans_add_item(tp, &rudp->rud_item);
- return rudp;
-}
-
-/*
- * Finish an rmap update and log it to the RUD. Note that the transaction is
- * marked dirty regardless of whether the rmap update succeeds or fails to
- * support the RUI/RUD lifecycle rules.
- */
-int
-xfs_trans_log_finish_rmap_update(
- struct xfs_trans *tp,
- struct xfs_rud_log_item *rudp,
- enum xfs_rmap_intent_type type,
- uint64_t owner,
- int whichfork,
- xfs_fileoff_t startoff,
- xfs_fsblock_t startblock,
- xfs_filblks_t blockcount,
- xfs_exntst_t state,
- struct xfs_btree_cur **pcur)
-{
- int error;
-
- error = xfs_rmap_finish_one(tp, type, owner, whichfork, startoff,
- startblock, blockcount, state, pcur);
-
- /*
- * Mark the transaction dirty, even on error. This ensures the
- * transaction is aborted, which:
- *
- * 1.) releases the RUI and frees the RUD
- * 2.) shuts down the filesystem
- */
- tp->t_flags |= XFS_TRANS_DIRTY;
- set_bit(XFS_LI_DIRTY, &rudp->rud_item.li_flags);
-
- return error;
-}
-
-/* Sort rmap intents by AG. */
-static int
-xfs_rmap_update_diff_items(
- void *priv,
- struct list_head *a,
- struct list_head *b)
-{
- struct xfs_mount *mp = priv;
- struct xfs_rmap_intent *ra;
- struct xfs_rmap_intent *rb;
-
- ra = container_of(a, struct xfs_rmap_intent, ri_list);
- rb = container_of(b, struct xfs_rmap_intent, ri_list);
- return XFS_FSB_TO_AGNO(mp, ra->ri_bmap.br_startblock) -
- XFS_FSB_TO_AGNO(mp, rb->ri_bmap.br_startblock);
-}
-
-/* Get an RUI. */
-STATIC void *
-xfs_rmap_update_create_intent(
- struct xfs_trans *tp,
- unsigned int count)
-{
- struct xfs_rui_log_item *ruip;
-
- ASSERT(tp != NULL);
- ASSERT(count > 0);
-
- ruip = xfs_rui_init(tp->t_mountp, count);
- ASSERT(ruip != NULL);
-
- /*
- * Get a log_item_desc to point at the new item.
- */
- xfs_trans_add_item(tp, &ruip->rui_item);
- return ruip;
-}
-
-/* Log rmap updates in the intent item. */
-STATIC void
-xfs_rmap_update_log_item(
- struct xfs_trans *tp,
- void *intent,
- struct list_head *item)
-{
- struct xfs_rui_log_item *ruip = intent;
- struct xfs_rmap_intent *rmap;
- uint next_extent;
- struct xfs_map_extent *map;
-
- rmap = container_of(item, struct xfs_rmap_intent, ri_list);
-
- tp->t_flags |= XFS_TRANS_DIRTY;
- set_bit(XFS_LI_DIRTY, &ruip->rui_item.li_flags);
-
- /*
- * atomic_inc_return gives us the value after the increment;
- * we want to use it as an array index so we need to subtract 1 from
- * it.
- */
- next_extent = atomic_inc_return(&ruip->rui_next_extent) - 1;
- ASSERT(next_extent < ruip->rui_format.rui_nextents);
- map = &ruip->rui_format.rui_extents[next_extent];
- map->me_owner = rmap->ri_owner;
- map->me_startblock = rmap->ri_bmap.br_startblock;
- map->me_startoff = rmap->ri_bmap.br_startoff;
- map->me_len = rmap->ri_bmap.br_blockcount;
- xfs_trans_set_rmap_flags(map, rmap->ri_type, rmap->ri_whichfork,
- rmap->ri_bmap.br_state);
-}
-
-/* Get an RUD so we can process all the deferred rmap updates. */
-STATIC void *
-xfs_rmap_update_create_done(
- struct xfs_trans *tp,
- void *intent,
- unsigned int count)
-{
- return xfs_trans_get_rud(tp, intent);
-}
-
-/* Process a deferred rmap update. */
-STATIC int
-xfs_rmap_update_finish_item(
- struct xfs_trans *tp,
- struct list_head *item,
- void *done_item,
- void **state)
-{
- struct xfs_rmap_intent *rmap;
- int error;
-
- rmap = container_of(item, struct xfs_rmap_intent, ri_list);
- error = xfs_trans_log_finish_rmap_update(tp, done_item,
- rmap->ri_type,
- rmap->ri_owner, rmap->ri_whichfork,
- rmap->ri_bmap.br_startoff,
- rmap->ri_bmap.br_startblock,
- rmap->ri_bmap.br_blockcount,
- rmap->ri_bmap.br_state,
- (struct xfs_btree_cur **)state);
- kmem_free(rmap);
- return error;
-}
-
-/* Clean up after processing deferred rmaps. */
-STATIC void
-xfs_rmap_update_finish_cleanup(
- struct xfs_trans *tp,
- void *state,
- int error)
-{
- struct xfs_btree_cur *rcur = state;
-
- xfs_rmap_finish_one_cleanup(tp, rcur, error);
-}
-
-/* Abort all pending RUIs. */
-STATIC void
-xfs_rmap_update_abort_intent(
- void *intent)
-{
- xfs_rui_release(intent);
-}
-
-/* Cancel a deferred rmap update. */
-STATIC void
-xfs_rmap_update_cancel_item(
- struct list_head *item)
-{
- struct xfs_rmap_intent *rmap;
-
- rmap = container_of(item, struct xfs_rmap_intent, ri_list);
- kmem_free(rmap);
-}
-
-const struct xfs_defer_op_type xfs_rmap_update_defer_type = {
- .max_items = XFS_RUI_MAX_FAST_EXTENTS,
- .diff_items = xfs_rmap_update_diff_items,
- .create_intent = xfs_rmap_update_create_intent,
- .abort_intent = xfs_rmap_update_abort_intent,
- .log_item = xfs_rmap_update_log_item,
- .create_done = xfs_rmap_update_create_done,
- .finish_item = xfs_rmap_update_finish_item,
- .finish_cleanup = xfs_rmap_update_finish_cleanup,
- .cancel_item = xfs_rmap_update_cancel_item,
-};
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-11-24 19:06:13 +0000