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- #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_bit.h"
- #include "xfs_mount.h"
- #include "xfs_defer.h"
- #include "xfs_trans.h"
- #include "xfs_trans_priv.h"
- #include "xfs_extfree_item.h"
- #include "xfs_alloc.h"
- #include "xfs_bmap.h"
- #include "xfs_trace.h"
- struct xfs_efd_log_item *
- xfs_trans_get_efd(struct xfs_trans *tp,
- struct xfs_efi_log_item *efip,
- uint nextents)
- {
- struct xfs_efd_log_item *efdp;
- ASSERT(tp != NULL);
- ASSERT(nextents > 0);
- efdp = xfs_efd_init(tp->t_mountp, efip, nextents);
- ASSERT(efdp != NULL);
-
- xfs_trans_add_item(tp, &efdp->efd_item);
- return efdp;
- }
- int
- xfs_trans_free_extent(
- struct xfs_trans *tp,
- struct xfs_efd_log_item *efdp,
- xfs_fsblock_t start_block,
- xfs_extlen_t ext_len,
- struct xfs_owner_info *oinfo)
- {
- struct xfs_mount *mp = tp->t_mountp;
- uint next_extent;
- xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, start_block);
- xfs_agblock_t agbno = XFS_FSB_TO_AGBNO(mp, start_block);
- struct xfs_extent *extp;
- int error;
- trace_xfs_bmap_free_deferred(tp->t_mountp, agno, 0, agbno, ext_len);
- error = xfs_free_extent(tp, start_block, ext_len, oinfo,
- XFS_AG_RESV_NONE);
-
- tp->t_flags |= XFS_TRANS_DIRTY;
- efdp->efd_item.li_desc->lid_flags |= XFS_LID_DIRTY;
- next_extent = efdp->efd_next_extent;
- ASSERT(next_extent < efdp->efd_format.efd_nextents);
- extp = &(efdp->efd_format.efd_extents[next_extent]);
- extp->ext_start = start_block;
- extp->ext_len = ext_len;
- efdp->efd_next_extent++;
- return error;
- }
- static int
- xfs_extent_free_diff_items(
- void *priv,
- struct list_head *a,
- struct list_head *b)
- {
- struct xfs_mount *mp = priv;
- struct xfs_extent_free_item *ra;
- struct xfs_extent_free_item *rb;
- ra = container_of(a, struct xfs_extent_free_item, xefi_list);
- rb = container_of(b, struct xfs_extent_free_item, xefi_list);
- return XFS_FSB_TO_AGNO(mp, ra->xefi_startblock) -
- XFS_FSB_TO_AGNO(mp, rb->xefi_startblock);
- }
- STATIC void *
- xfs_extent_free_create_intent(
- struct xfs_trans *tp,
- unsigned int count)
- {
- struct xfs_efi_log_item *efip;
- ASSERT(tp != NULL);
- ASSERT(count > 0);
- efip = xfs_efi_init(tp->t_mountp, count);
- ASSERT(efip != NULL);
-
- xfs_trans_add_item(tp, &efip->efi_item);
- return efip;
- }
- STATIC void
- xfs_extent_free_log_item(
- struct xfs_trans *tp,
- void *intent,
- struct list_head *item)
- {
- struct xfs_efi_log_item *efip = intent;
- struct xfs_extent_free_item *free;
- uint next_extent;
- struct xfs_extent *extp;
- free = container_of(item, struct xfs_extent_free_item, xefi_list);
- tp->t_flags |= XFS_TRANS_DIRTY;
- efip->efi_item.li_desc->lid_flags |= XFS_LID_DIRTY;
-
- next_extent = atomic_inc_return(&efip->efi_next_extent) - 1;
- ASSERT(next_extent < efip->efi_format.efi_nextents);
- extp = &efip->efi_format.efi_extents[next_extent];
- extp->ext_start = free->xefi_startblock;
- extp->ext_len = free->xefi_blockcount;
- }
- STATIC void *
- xfs_extent_free_create_done(
- struct xfs_trans *tp,
- void *intent,
- unsigned int count)
- {
- return xfs_trans_get_efd(tp, intent, count);
- }
- STATIC int
- xfs_extent_free_finish_item(
- struct xfs_trans *tp,
- struct xfs_defer_ops *dop,
- struct list_head *item,
- void *done_item,
- void **state)
- {
- struct xfs_extent_free_item *free;
- int error;
- free = container_of(item, struct xfs_extent_free_item, xefi_list);
- error = xfs_trans_free_extent(tp, done_item,
- free->xefi_startblock,
- free->xefi_blockcount,
- &free->xefi_oinfo);
- kmem_free(free);
- return error;
- }
- STATIC void
- xfs_extent_free_abort_intent(
- void *intent)
- {
- xfs_efi_release(intent);
- }
- STATIC void
- xfs_extent_free_cancel_item(
- struct list_head *item)
- {
- struct xfs_extent_free_item *free;
- free = container_of(item, struct xfs_extent_free_item, xefi_list);
- kmem_free(free);
- }
- static const struct xfs_defer_op_type xfs_extent_free_defer_type = {
- .type = XFS_DEFER_OPS_TYPE_FREE,
- .max_items = XFS_EFI_MAX_FAST_EXTENTS,
- .diff_items = xfs_extent_free_diff_items,
- .create_intent = xfs_extent_free_create_intent,
- .abort_intent = xfs_extent_free_abort_intent,
- .log_item = xfs_extent_free_log_item,
- .create_done = xfs_extent_free_create_done,
- .finish_item = xfs_extent_free_finish_item,
- .cancel_item = xfs_extent_free_cancel_item,
- };
- void
- xfs_extent_free_init_defer_op(void)
- {
- xfs_defer_init_op_type(&xfs_extent_free_defer_type);
- }
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