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-rw-r--r--fs/xfs/xfs_trans_refcount.c240
1 files changed, 0 insertions, 240 deletions
diff --git a/fs/xfs/xfs_trans_refcount.c b/fs/xfs/xfs_trans_refcount.c
deleted file mode 100644
index 8d734728dd1b..000000000000
--- a/fs/xfs/xfs_trans_refcount.c
+++ /dev/null
@@ -1,240 +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_refcount_item.h"
-#include "xfs_alloc.h"
-#include "xfs_refcount.h"
-
-/*
- * This routine is called to allocate a "refcount update done"
- * log item.
- */
-struct xfs_cud_log_item *
-xfs_trans_get_cud(
- struct xfs_trans *tp,
- struct xfs_cui_log_item *cuip)
-{
- struct xfs_cud_log_item *cudp;
-
- cudp = xfs_cud_init(tp->t_mountp, cuip);
- xfs_trans_add_item(tp, &cudp->cud_item);
- return cudp;
-}
-
-/*
- * Finish an refcount update and log it to the CUD. Note that the
- * transaction is marked dirty regardless of whether the refcount
- * update succeeds or fails to support the CUI/CUD lifecycle rules.
- */
-int
-xfs_trans_log_finish_refcount_update(
- struct xfs_trans *tp,
- struct xfs_cud_log_item *cudp,
- enum xfs_refcount_intent_type type,
- xfs_fsblock_t startblock,
- xfs_extlen_t blockcount,
- xfs_fsblock_t *new_fsb,
- xfs_extlen_t *new_len,
- struct xfs_btree_cur **pcur)
-{
- int error;
-
- error = xfs_refcount_finish_one(tp, type, startblock,
- blockcount, new_fsb, new_len, pcur);
-
- /*
- * Mark the transaction dirty, even on error. This ensures the
- * transaction is aborted, which:
- *
- * 1.) releases the CUI and frees the CUD
- * 2.) shuts down the filesystem
- */
- tp->t_flags |= XFS_TRANS_DIRTY;
- set_bit(XFS_LI_DIRTY, &cudp->cud_item.li_flags);
-
- return error;
-}
-
-/* Sort refcount intents by AG. */
-static int
-xfs_refcount_update_diff_items(
- void *priv,
- struct list_head *a,
- struct list_head *b)
-{
- struct xfs_mount *mp = priv;
- struct xfs_refcount_intent *ra;
- struct xfs_refcount_intent *rb;
-
- ra = container_of(a, struct xfs_refcount_intent, ri_list);
- rb = container_of(b, struct xfs_refcount_intent, ri_list);
- return XFS_FSB_TO_AGNO(mp, ra->ri_startblock) -
- XFS_FSB_TO_AGNO(mp, rb->ri_startblock);
-}
-
-/* Get an CUI. */
-STATIC void *
-xfs_refcount_update_create_intent(
- struct xfs_trans *tp,
- unsigned int count)
-{
- struct xfs_cui_log_item *cuip;
-
- ASSERT(tp != NULL);
- ASSERT(count > 0);
-
- cuip = xfs_cui_init(tp->t_mountp, count);
- ASSERT(cuip != NULL);
-
- /*
- * Get a log_item_desc to point at the new item.
- */
- xfs_trans_add_item(tp, &cuip->cui_item);
- return cuip;
-}
-
-/* Set the phys extent flags for this reverse mapping. */
-static void
-xfs_trans_set_refcount_flags(
- struct xfs_phys_extent *refc,
- enum xfs_refcount_intent_type type)
-{
- refc->pe_flags = 0;
- switch (type) {
- case XFS_REFCOUNT_INCREASE:
- case XFS_REFCOUNT_DECREASE:
- case XFS_REFCOUNT_ALLOC_COW:
- case XFS_REFCOUNT_FREE_COW:
- refc->pe_flags |= type;
- break;
- default:
- ASSERT(0);
- }
-}
-
-/* Log refcount updates in the intent item. */
-STATIC void
-xfs_refcount_update_log_item(
- struct xfs_trans *tp,
- void *intent,
- struct list_head *item)
-{
- struct xfs_cui_log_item *cuip = intent;
- struct xfs_refcount_intent *refc;
- uint next_extent;
- struct xfs_phys_extent *ext;
-
- refc = container_of(item, struct xfs_refcount_intent, ri_list);
-
- tp->t_flags |= XFS_TRANS_DIRTY;
- set_bit(XFS_LI_DIRTY, &cuip->cui_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(&cuip->cui_next_extent) - 1;
- ASSERT(next_extent < cuip->cui_format.cui_nextents);
- ext = &cuip->cui_format.cui_extents[next_extent];
- ext->pe_startblock = refc->ri_startblock;
- ext->pe_len = refc->ri_blockcount;
- xfs_trans_set_refcount_flags(ext, refc->ri_type);
-}
-
-/* Get an CUD so we can process all the deferred refcount updates. */
-STATIC void *
-xfs_refcount_update_create_done(
- struct xfs_trans *tp,
- void *intent,
- unsigned int count)
-{
- return xfs_trans_get_cud(tp, intent);
-}
-
-/* Process a deferred refcount update. */
-STATIC int
-xfs_refcount_update_finish_item(
- struct xfs_trans *tp,
- struct list_head *item,
- void *done_item,
- void **state)
-{
- struct xfs_refcount_intent *refc;
- xfs_fsblock_t new_fsb;
- xfs_extlen_t new_aglen;
- int error;
-
- refc = container_of(item, struct xfs_refcount_intent, ri_list);
- error = xfs_trans_log_finish_refcount_update(tp, done_item,
- refc->ri_type,
- refc->ri_startblock,
- refc->ri_blockcount,
- &new_fsb, &new_aglen,
- (struct xfs_btree_cur **)state);
- /* Did we run out of reservation? Requeue what we didn't finish. */
- if (!error && new_aglen > 0) {
- ASSERT(refc->ri_type == XFS_REFCOUNT_INCREASE ||
- refc->ri_type == XFS_REFCOUNT_DECREASE);
- refc->ri_startblock = new_fsb;
- refc->ri_blockcount = new_aglen;
- return -EAGAIN;
- }
- kmem_free(refc);
- return error;
-}
-
-/* Clean up after processing deferred refcounts. */
-STATIC void
-xfs_refcount_update_finish_cleanup(
- struct xfs_trans *tp,
- void *state,
- int error)
-{
- struct xfs_btree_cur *rcur = state;
-
- xfs_refcount_finish_one_cleanup(tp, rcur, error);
-}
-
-/* Abort all pending CUIs. */
-STATIC void
-xfs_refcount_update_abort_intent(
- void *intent)
-{
- xfs_cui_release(intent);
-}
-
-/* Cancel a deferred refcount update. */
-STATIC void
-xfs_refcount_update_cancel_item(
- struct list_head *item)
-{
- struct xfs_refcount_intent *refc;
-
- refc = container_of(item, struct xfs_refcount_intent, ri_list);
- kmem_free(refc);
-}
-
-const struct xfs_defer_op_type xfs_refcount_update_defer_type = {
- .max_items = XFS_CUI_MAX_FAST_EXTENTS,
- .diff_items = xfs_refcount_update_diff_items,
- .create_intent = xfs_refcount_update_create_intent,
- .abort_intent = xfs_refcount_update_abort_intent,
- .log_item = xfs_refcount_update_log_item,
- .create_done = xfs_refcount_update_create_done,
- .finish_item = xfs_refcount_update_finish_item,
- .finish_cleanup = xfs_refcount_update_finish_cleanup,
- .cancel_item = xfs_refcount_update_cancel_item,
-};
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