[PATCH 6/8] xfs: add log item method to return related intents

Dave Chinner
2022-04-27T02:23:05Z

From: Dave Chinner <dchinner@redhat.com>

To apply a whiteout to an intent item when an intent done item is
committed, we need to be able to retrieve the intent item from the
the intent done item. Add a log item op method for doing this, and
wire all the intent done items up to it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
---
fs/xfs/xfs_bmap_item.c | 8 ++++++++
fs/xfs/xfs_extfree_item.c | 8 ++++++++
fs/xfs/xfs_refcount_item.c | 8 ++++++++
fs/xfs/xfs_rmap_item.c | 8 ++++++++
fs/xfs/xfs_trans.h | 1 +
5 files changed, 33 insertions(+)

diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index 3b968b31911b..e1b0e321d604 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -201,12 +201,20 @@ xfs_bud_item_release(
kmem_cache_free(xfs_bud_cache, budp);
}

+static struct xfs_log_item *
+xfs_bud_item_intent(
+ struct xfs_log_item *lip)
+{
+ return &BUD_ITEM(lip)->bud_buip->bui_item;
+}
+
static const struct xfs_item_ops xfs_bud_item_ops = {
.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED |
XFS_ITEM_INTENT_DONE,
.iop_size = xfs_bud_item_size,
.iop_format = xfs_bud_item_format,
.iop_release = xfs_bud_item_release,
+ .iop_intent = xfs_bud_item_intent,
};

static struct xfs_bud_log_item *
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index 96735f23d12d..032db5269e97 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -306,12 +306,20 @@ xfs_efd_item_release(
xfs_efd_item_free(efdp);
}

+static struct xfs_log_item *
+xfs_efd_item_intent(
+ struct xfs_log_item *lip)
+{
+ return &EFD_ITEM(lip)->efd_efip->efi_item;
+}
+
static const struct xfs_item_ops xfs_efd_item_ops = {
.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED |
XFS_ITEM_INTENT_DONE,
.iop_size = xfs_efd_item_size,
.iop_format = xfs_efd_item_format,
.iop_release = xfs_efd_item_release,
+ .iop_intent = xfs_efd_item_intent,
};

/*
diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
index b523ce2c775b..a2213b5ee344 100644
--- a/fs/xfs/xfs_refcount_item.c
+++ b/fs/xfs/xfs_refcount_item.c
@@ -207,12 +207,20 @@ xfs_cud_item_release(
kmem_cache_free(xfs_cud_cache, cudp);
}

+static struct xfs_log_item *
+xfs_cud_item_intent(
+ struct xfs_log_item *lip)
+{
+ return &CUD_ITEM(lip)->cud_cuip->cui_item;
+}
+
static const struct xfs_item_ops xfs_cud_item_ops = {
.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED |
XFS_ITEM_INTENT_DONE,
.iop_size = xfs_cud_item_size,
.iop_format = xfs_cud_item_format,
.iop_release = xfs_cud_item_release,
+ .iop_intent = xfs_cud_item_intent,
};

static struct xfs_cud_log_item *
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index b269e68407b9..053eb135380c 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -230,12 +230,20 @@ xfs_rud_item_release(
kmem_cache_free(xfs_rud_cache, rudp);
}

+static struct xfs_log_item *
+xfs_rud_item_intent(
+ struct xfs_log_item *lip)
+{
+ return &RUD_ITEM(lip)->rud_ruip->rui_item;
+}
+
static const struct xfs_item_ops xfs_rud_item_ops = {
.flags = XFS_ITEM_RELEASE_WHEN_COMMITTED |
XFS_ITEM_INTENT_DONE,
.iop_size = xfs_rud_item_size,
.iop_format = xfs_rud_item_format,
.iop_release = xfs_rud_item_release,
+ .iop_intent = xfs_rud_item_intent,
};

static struct xfs_rud_log_item *
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index f68e74e46026..d72a5995d33e 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -78,6 +78,7 @@ struct xfs_item_ops {
bool (*iop_match)(struct xfs_log_item *item, uint64_t id);
struct xfs_log_item *(*iop_relog)(struct xfs_log_item *intent,
struct xfs_trans *tp);
+ struct xfs_log_item *(*iop_intent)(struct xfs_log_item *intent_done);
};

/*
--
2.35.1