#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"
-
-/*
- * This routine is called to allocate an "extent free intention"
- * log item that will hold nextents worth of extents. The
- * caller must use all nextents extents, because we are not
- * flexible about this at all.
- */
-struct xfs_efi_log_item *
-xfs_trans_get_efi(struct xfs_trans *tp,
- uint nextents)
-{
- struct xfs_efi_log_item *efip;
-
- ASSERT(tp != NULL);
- ASSERT(nextents > 0);
-
- efip = xfs_efi_init(tp->t_mountp, nextents);
- ASSERT(efip != NULL);
-
- /*
- * Get a log_item_desc to point at the new item.
- */
- xfs_trans_add_item(tp, &efip->efi_item);
- return efip;
-}
-
-/*
- * This routine is called to indicate that the described
- * extent is to be logged as needing to be freed. It should
- * be called once for each extent to be freed.
- */
-void
-xfs_trans_log_efi_extent(struct xfs_trans *tp,
- struct xfs_efi_log_item *efip,
- xfs_fsblock_t start_block,
- xfs_extlen_t ext_len)
-{
- uint next_extent;
- struct xfs_extent *extp;
-
- tp->t_flags |= XFS_TRANS_DIRTY;
- efip->efi_item.li_desc->lid_flags |= XFS_LID_DIRTY;
-
- /*
- * 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(&efip->efi_next_extent) - 1;
- ASSERT(next_extent < efip->efi_format.efi_nextents);
- extp = &(efip->efi_format.efi_extents[next_extent]);
- extp->ext_start = start_block;
- extp->ext_len = ext_len;
-}
-
+#include "xfs_bmap.h"
+#include "xfs_trace.h"
/*
* This routine is called to allocate an "extent free done"
struct xfs_trans *tp,
struct xfs_efd_log_item *efdp,
xfs_fsblock_t start_block,
- xfs_extlen_t ext_len)
+ 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;
- error = xfs_free_extent(tp, start_block, ext_len);
+ trace_xfs_bmap_free_deferred(tp->t_mountp, agno, 0, agbno, ext_len);
+
+ error = xfs_free_extent(tp, start_block, ext_len, oinfo);
/*
* Mark the transaction dirty, even on error. This ensures the
return error;
}
+
+/* Sort bmap items by AG. */
+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);
+}
+
+/* Get an EFI. */
+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);
+
+ /*
+ * Get a log_item_desc to point at the new item.
+ */
+ xfs_trans_add_item(tp, &efip->efi_item);
+ return efip;
+}
+
+/* Log a free extent to the intent item. */
+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;
+
+ /*
+ * 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(&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;
+}
+
+/* Get an EFD so we can process all the free extents. */
+STATIC void *
+xfs_extent_free_create_done(
+ struct xfs_trans *tp,
+ void *intent,
+ unsigned int count)
+{
+ return xfs_trans_get_efd(tp, intent, count);
+}
+
+/* Process a free extent. */
+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;
+}
+
+/* Abort all pending EFIs. */
+STATIC void
+xfs_extent_free_abort_intent(
+ void *intent)
+{
+ xfs_efi_release(intent);
+}
+
+/* Cancel a free extent. */
+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,
+};
+
+/* Register the deferred op type. */
+void
+xfs_extent_free_init_defer_op(void)
+{
+ xfs_defer_init_op_type(&xfs_extent_free_defer_type);
+}
projects / linux-2.6-block.git / blobdiff