[PATCH 03/28] xfs: refactor log recovery item dispatch for pass2 readhead functions

Darrick J. Wong
2020-05-05T01:10:56Z

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

Move the pass2 readhead code into the per-item source code files and use
the dispatch function to call them.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
fs/xfs/libxfs/xfs_log_recover.h | 6 ++
fs/xfs/xfs_buf_item_recover.c | 11 +++++
fs/xfs/xfs_dquot_item_recover.c | 34 ++++++++++++++
fs/xfs/xfs_inode_item_recover.c | 19 ++++++++
fs/xfs/xfs_log_recover.c | 95 +--------------------------------------
5 files changed, 73 insertions(+), 92 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
index 271b0741f1e1..ff80871138bb 100644
--- a/fs/xfs/libxfs/xfs_log_recover.h
+++ b/fs/xfs/libxfs/xfs_log_recover.h
@@ -31,6 +31,9 @@ struct xlog_recover_item_ops {
* values mean.
*/
enum xlog_recover_reorder (*reorder)(struct xlog_recover_item *item);
+
+ /* Start readahead for pass2, if provided. */
+ void (*ra_pass2)(struct xlog *log, struct xlog_recover_item *item);
};

extern const struct xlog_recover_item_ops xlog_icreate_item_ops;
@@ -92,4 +95,7 @@ struct xlog_recover {
#define XLOG_RECOVER_PASS1 1
#define XLOG_RECOVER_PASS2 2

+void xlog_buf_readahead(struct xlog *log, xfs_daddr_t blkno, uint len,
+ const struct xfs_buf_ops *ops);
+
#endif /* __XFS_LOG_RECOVER_H__ */
diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
index def19025512e..a1327196b690 100644
--- a/fs/xfs/xfs_buf_item_recover.c
+++ b/fs/xfs/xfs_buf_item_recover.c
@@ -32,7 +32,18 @@ xlog_recover_buf_reorder(
return XLOG_REORDER_BUFFER_LIST;
}

+STATIC void
+xlog_recover_buf_ra_pass2(
+ struct xlog *log,
+ struct xlog_recover_item *item)
+{
+ struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
+
+ xlog_buf_readahead(log, buf_f->blf_blkno, buf_f->blf_len, NULL);
+}
+
const struct xlog_recover_item_ops xlog_buf_item_ops = {
.item_type = XFS_LI_BUF,
.reorder = xlog_recover_buf_reorder,
+ .ra_pass2 = xlog_recover_buf_ra_pass2,
};
diff --git a/fs/xfs/xfs_dquot_item_recover.c b/fs/xfs/xfs_dquot_item_recover.c
index 78fe644e9907..215274173b70 100644
--- a/fs/xfs/xfs_dquot_item_recover.c
+++ b/fs/xfs/xfs_dquot_item_recover.c
@@ -20,8 +20,42 @@
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"

+STATIC void
+xlog_recover_dquot_ra_pass2(
+ struct xlog *log,
+ struct xlog_recover_item *item)
+{
+ struct xfs_mount *mp = log->l_mp;
+ struct xfs_disk_dquot *recddq;
+ struct xfs_dq_logformat *dq_f;
+ uint type;
+
+ if (mp->m_qflags == 0)
+ return;
+
+ recddq = item->ri_buf[1].i_addr;
+ if (recddq == NULL)
+ return;
+ if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
+ return;
+
+ type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
+ ASSERT(type);
+ if (log->l_quotaoffs_flag & type)
+ return;
+
+ dq_f = item->ri_buf[0].i_addr;
+ ASSERT(dq_f);
+ ASSERT(dq_f->qlf_len == 1);
+
+ xlog_buf_readahead(log, dq_f->qlf_blkno,
+ XFS_FSB_TO_BB(mp, dq_f->qlf_len),
+ &xfs_dquot_buf_ra_ops);
+}
+
const struct xlog_recover_item_ops xlog_dquot_item_ops = {
.item_type = XFS_LI_DQUOT,
+ .ra_pass2 = xlog_recover_dquot_ra_pass2,
};

const struct xlog_recover_item_ops xlog_quotaoff_item_ops = {
diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
index b19a151efb10..a132cacd8d48 100644
--- a/fs/xfs/xfs_inode_item_recover.c
+++ b/fs/xfs/xfs_inode_item_recover.c
@@ -21,6 +21,25 @@
#include "xfs_log_priv.h"
#include "xfs_log_recover.h"

+STATIC void
+xlog_recover_inode_ra_pass2(
+ struct xlog *log,
+ struct xlog_recover_item *item)
+{
+ if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
+ struct xfs_inode_log_format *ilfp = item->ri_buf[0].i_addr;
+
+ xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
+ &xfs_inode_buf_ra_ops);
+ } else {
+ struct xfs_inode_log_format_32 *ilfp = item->ri_buf[0].i_addr;
+
+ xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
+ &xfs_inode_buf_ra_ops);
+ }
+}
+
const struct xlog_recover_item_ops xlog_inode_item_ops = {
.item_type = XFS_LI_INODE,
+ .ra_pass2 = xlog_recover_inode_ra_pass2,
};
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 0ef0d81fd190..ea566747d8e1 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2023,7 +2023,7 @@ xlog_put_buffer_cancelled(
return true;
}

-static void
+void
xlog_buf_readahead(
struct xlog *log,
xfs_daddr_t blkno,
@@ -3890,96 +3890,6 @@ xlog_recover_do_icreate_pass2(
length, be32_to_cpu(icl->icl_gen));
}

-STATIC void
-xlog_recover_buffer_ra_pass2(
- struct xlog *log,
- struct xlog_recover_item *item)
-{
- struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
-
- xlog_buf_readahead(log, buf_f->blf_blkno, buf_f->blf_len, NULL);
-}
-
-STATIC void
-xlog_recover_inode_ra_pass2(
- struct xlog *log,
- struct xlog_recover_item *item)
-{
- if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
- struct xfs_inode_log_format *ilfp = item->ri_buf[0].i_addr;
-
- xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
- &xfs_inode_buf_ra_ops);
- } else {
- struct xfs_inode_log_format_32 *ilfp = item->ri_buf[0].i_addr;
-
- xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
- &xfs_inode_buf_ra_ops);
- }
-}
-
-STATIC void
-xlog_recover_dquot_ra_pass2(
- struct xlog *log,
- struct xlog_recover_item *item)
-{
- struct xfs_mount *mp = log->l_mp;
- struct xfs_disk_dquot *recddq;
- struct xfs_dq_logformat *dq_f;
- uint type;
-
- if (mp->m_qflags == 0)
- return;
-
- recddq = item->ri_buf[1].i_addr;
- if (recddq == NULL)
- return;
- if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
- return;
-
- type = recddq->d_flags & (XFS_DQ_USER | XFS_DQ_PROJ | XFS_DQ_GROUP);
- ASSERT(type);
- if (log->l_quotaoffs_flag & type)
- return;
-
- dq_f = item->ri_buf[0].i_addr;
- ASSERT(dq_f);
- ASSERT(dq_f->qlf_len == 1);
-
- xlog_buf_readahead(log, dq_f->qlf_blkno,
- XFS_FSB_TO_BB(mp, dq_f->qlf_len),
- &xfs_dquot_buf_ra_ops);
-}
-
-STATIC void
-xlog_recover_ra_pass2(
- struct xlog *log,
- struct xlog_recover_item *item)
-{
- switch (ITEM_TYPE(item)) {
- case XFS_LI_BUF:
- xlog_recover_buffer_ra_pass2(log, item);
- break;
- case XFS_LI_INODE:
- xlog_recover_inode_ra_pass2(log, item);
- break;
- case XFS_LI_DQUOT:
- xlog_recover_dquot_ra_pass2(log, item);
- break;
- case XFS_LI_EFI:
- case XFS_LI_EFD:
- case XFS_LI_QUOTAOFF:
- case XFS_LI_RUI:
- case XFS_LI_RUD:
- case XFS_LI_CUI:
- case XFS_LI_CUD:
- case XFS_LI_BUI:
- case XFS_LI_BUD:
- default:
- break;
- }
-}
-
STATIC int
xlog_recover_commit_pass1(
struct xlog *log,
@@ -4116,7 +4026,8 @@ xlog_recover_commit_trans(
error = xlog_recover_commit_pass1(log, trans, item);
break;
case XLOG_RECOVER_PASS2:
- xlog_recover_ra_pass2(log, item);
+ if (item->ri_ops->ra_pass2)
+ item->ri_ops->ra_pass2(log, item);
list_move_tail(&item->ri_list, &ra_list);
items_queued++;
if (items_queued >= XLOG_RECOVER_COMMIT_QUEUE_MAX) {