7dbddbaccd
The dfops infrastructure ->finish_item() callback passes the transaction and dfops as separate parameters. Since dfops is always part of a transaction, the latter parameter is no longer necessary. Remove it from the various callbacks. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
265 lines
6.4 KiB
C
265 lines
6.4 KiB
C
// 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);
|
|
}
|
|
|
|
static const struct xfs_defer_op_type xfs_rmap_update_defer_type = {
|
|
.type = XFS_DEFER_OPS_TYPE_RMAP,
|
|
.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,
|
|
};
|
|
|
|
/* Register the deferred op type. */
|
|
void
|
|
xfs_rmap_update_init_defer_op(void)
|
|
{
|
|
xfs_defer_init_op_type(&xfs_rmap_update_defer_type);
|
|
}
|