[PATCH 14/28] xfs: refactor recovered EFI log item playback

Darrick J. Wong
2020-05-05T01:12:06Z

From: Darrick J. Wong <darrick.wong@oracle.com>

Move the code that processes the log items created from the recovered
log items into the per-item source code files and use dispatch functions
to call them. No functional changes.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/xfs_extfree_item.c | 47 +++++++++++++++++++++++++++++++++++----------
fs/xfs/xfs_extfree_item.h | 5 -----
fs/xfs/xfs_log_recover.c | 46 ++++----------------------------------------
fs/xfs/xfs_trans.h | 1 +
4 files changed, 42 insertions(+), 57 deletions(-)

diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index dca098660753..3fc8a9864217 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -28,6 +28,8 @@
kmem_zone_t *xfs_efi_zone;
kmem_zone_t *xfs_efd_zone;

+static const struct xfs_item_ops xfs_efi_item_ops;
+
static inline struct xfs_efi_log_item *EFI_ITEM(struct xfs_log_item *lip)
{
return container_of(lip, struct xfs_efi_log_item, efi_item);
@@ -51,7 +53,7 @@ xfs_efi_item_free(
* committed vs unpin operations in bulk insert operations. Hence the reference
* count to ensure only the last caller frees the EFI.
*/
-void
+STATIC void
xfs_efi_release(
struct xfs_efi_log_item *efip)
{
@@ -141,14 +143,6 @@ xfs_efi_item_release(
xfs_efi_release(EFI_ITEM(lip));
}

-static const struct xfs_item_ops xfs_efi_item_ops = {
- .iop_size = xfs_efi_item_size,
- .iop_format = xfs_efi_item_format,
- .iop_unpin = xfs_efi_item_unpin,
- .iop_release = xfs_efi_item_release,
-};
-
-
/*
* Allocate and initialize an efi item with the given number of extents.
*/
@@ -586,7 +580,7 @@ const struct xfs_defer_op_type xfs_agfl_free_defer_type = {
* Process an extent free intent item that was recovered from
* the log. We need to free the extents that it describes.
*/
-int
+STATIC int
xfs_efi_recover(
struct xfs_mount *mp,
struct xfs_efi_log_item *efip)
@@ -647,6 +641,39 @@ xfs_efi_recover(
return error;
}

+/* Recover the EFI if necessary. */
+STATIC int
+xfs_efi_item_recover(
+ struct xfs_log_item *lip,
+ struct xfs_trans *tp)
+{
+ struct xfs_ail *ailp = lip->li_ailp;
+ struct xfs_efi_log_item *efip;
+ int error;
+
+ /*
+ * Skip EFIs that we've already processed.
+ */
+ efip = container_of(lip, struct xfs_efi_log_item, efi_item);
+ if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags))
+ return 0;
+
+ spin_unlock(&ailp->ail_lock);
+ error = xfs_efi_recover(tp->t_mountp, efip);
+ spin_lock(&ailp->ail_lock);
+
+ return error;
+}
+
+static const struct xfs_item_ops xfs_efi_item_ops = {
+ .iop_size = xfs_efi_item_size,
+ .iop_format = xfs_efi_item_format,
+ .iop_unpin = xfs_efi_item_unpin,
+ .iop_release = xfs_efi_item_release,
+ .iop_recover = xfs_efi_item_recover,
+};
+
+
/*
* This routine is called to create an in-core extent free intent
* item from the efi format structure which was logged on disk.
diff --git a/fs/xfs/xfs_extfree_item.h b/fs/xfs/xfs_extfree_item.h
index 876e3d237f48..4b2c2c5c5985 100644
--- a/fs/xfs/xfs_extfree_item.h
+++ b/fs/xfs/xfs_extfree_item.h
@@ -78,9 +78,4 @@ struct xfs_efd_log_item {
extern struct kmem_zone *xfs_efi_zone;
extern struct kmem_zone *xfs_efd_zone;

-void xfs_efi_release(struct xfs_efi_log_item *);
-
-int xfs_efi_recover(struct xfs_mount *mp,
- struct xfs_efi_log_item *efip);
-
#endif /* __XFS_EXTFREE_ITEM_H__ */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 929e2caeeb42..f12e14719202 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2553,46 +2553,6 @@ xlog_recover_process_data(
return 0;
}

-/* Recover the EFI if necessary. */
-STATIC int
-xlog_recover_process_efi(
- struct xfs_mount *mp,
- struct xfs_ail *ailp,
- struct xfs_log_item *lip)
-{
- struct xfs_efi_log_item *efip;
- int error;
-
- /*
- * Skip EFIs that we've already processed.
- */
- efip = container_of(lip, struct xfs_efi_log_item, efi_item);
- if (test_bit(XFS_EFI_RECOVERED, &efip->efi_flags))
- return 0;
-
- spin_unlock(&ailp->ail_lock);
- error = xfs_efi_recover(mp, efip);
- spin_lock(&ailp->ail_lock);
-
- return error;
-}
-
-/* Release the EFI since we're cancelling everything. */
-STATIC void
-xlog_recover_cancel_efi(
- struct xfs_mount *mp,
- struct xfs_ail *ailp,
- struct xfs_log_item *lip)
-{
- struct xfs_efi_log_item *efip;
-
- efip = container_of(lip, struct xfs_efi_log_item, efi_item);
-
- spin_unlock(&ailp->ail_lock);
- xfs_efi_release(efip);
- spin_lock(&ailp->ail_lock);
-}
-
/* Recover the RUI if necessary. */
STATIC int
xlog_recover_process_rui(
@@ -2837,7 +2797,7 @@ xlog_recover_process_intents(
*/
switch (lip->li_type) {
case XFS_LI_EFI:
- error = xlog_recover_process_efi(log->l_mp, ailp, lip);
+ error = lip->li_ops->iop_recover(lip, parent_tp);
break;
case XFS_LI_RUI:
error = xlog_recover_process_rui(log->l_mp, ailp, lip);
@@ -2893,7 +2853,9 @@ xlog_recover_cancel_intents(

switch (lip->li_type) {
case XFS_LI_EFI:
- xlog_recover_cancel_efi(log->l_mp, ailp, lip);
+ spin_unlock(&ailp->ail_lock);
+ lip->li_ops->iop_release(lip);
+ spin_lock(&ailp->ail_lock);
break;
case XFS_LI_RUI:
xlog_recover_cancel_rui(log->l_mp, ailp, lip);
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 752c7fef9de7..3f6a79108991 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -77,6 +77,7 @@ struct xfs_item_ops {
void (*iop_release)(struct xfs_log_item *);
xfs_lsn_t (*iop_committed)(struct xfs_log_item *, xfs_lsn_t);
void (*iop_error)(struct xfs_log_item *, xfs_buf_t *);
+ int (*iop_recover)(struct xfs_log_item *lip, struct xfs_trans *tp);
};

/*