From: Chandan Rajendra <chandan@linux.ibm.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 01/21] xfs: refactor log recovery item sorting into a generic dispatch structure
Date: Fri, 01 May 2020 16:10:51 +0530 [thread overview]
Message-ID: <1615698.eEcKq2KqFK@localhost.localdomain> (raw)
In-Reply-To: <158820766135.467894.13993542565087629835.stgit@magnolia>
On Thursday, April 30, 2020 6:17 AM Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
>
> Create a generic dispatch structure to delegate recovery of different
> log item types into various code modules. This will enable us to move
> code specific to a particular log item type out of xfs_log_recover.c and
> into the log item source.
>
> The first operation we virtualize is the log item sorting.
The item sorting is logically the same as before applying the patch. Hence,
Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com>
>
> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
> fs/xfs/Makefile | 2 +
> fs/xfs/libxfs/xfs_log_recover.h | 41 ++++++++++++++
> fs/xfs/xfs_bmap_item.c | 7 ++
> fs/xfs/xfs_buf_item.c | 1
> fs/xfs/xfs_buf_item_recover.c | 37 +++++++++++++
> fs/xfs/xfs_dquot_item.c | 8 +++
> fs/xfs/xfs_extfree_item.c | 7 ++
> fs/xfs/xfs_icreate_item.c | 13 ++++
> fs/xfs/xfs_inode_item_recover.c | 25 ++++++++
> fs/xfs/xfs_log_recover.c | 115 ++++++++++++++++++++++++++-------------
> fs/xfs/xfs_refcount_item.c | 7 ++
> fs/xfs/xfs_rmap_item.c | 7 ++
> 12 files changed, 231 insertions(+), 39 deletions(-)
> create mode 100644 fs/xfs/xfs_buf_item_recover.c
> create mode 100644 fs/xfs/xfs_inode_item_recover.c
>
>
> diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
> index ee375b67ac71..5e52c2dc6078 100644
> --- a/fs/xfs/Makefile
> +++ b/fs/xfs/Makefile
> @@ -120,9 +120,11 @@ xfs-y += xfs_log.o \
> xfs_log_cil.o \
> xfs_bmap_item.o \
> xfs_buf_item.o \
> + xfs_buf_item_recover.o \
> xfs_extfree_item.o \
> xfs_icreate_item.o \
> xfs_inode_item.o \
> + xfs_inode_item_recover.o \
> xfs_refcount_item.o \
> xfs_rmap_item.o \
> xfs_log_recover.o \
> diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
> index 3bf671637a91..38ae9c371edb 100644
> --- a/fs/xfs/libxfs/xfs_log_recover.h
> +++ b/fs/xfs/libxfs/xfs_log_recover.h
> @@ -6,6 +6,45 @@
> #ifndef __XFS_LOG_RECOVER_H__
> #define __XFS_LOG_RECOVER_H__
>
> +/*
> + * Each log item type (XFS_LI_*) gets its own xlog_recover_item_type to
> + * define how recovery should work for that type of log item.
> + */
> +struct xlog_recover_item;
> +
> +/* Sorting hat for log items as they're read in. */
> +enum xlog_recover_reorder {
> + XLOG_REORDER_BUFFER_LIST,
> + XLOG_REORDER_ITEM_LIST,
> + XLOG_REORDER_INODE_BUFFER_LIST,
> + XLOG_REORDER_CANCEL_LIST,
> +};
> +
> +struct xlog_recover_item_type {
> + /*
> + * Help sort recovered log items into the order required to replay them
> + * correctly. Log item types that always use XLOG_REORDER_ITEM_LIST do
> + * not have to supply a function here. See the comment preceding
> + * xlog_recover_reorder_trans for more details about what the return
> + * values mean.
> + */
> + enum xlog_recover_reorder (*reorder_fn)(struct xlog_recover_item *item);
> +};
> +
> +extern const struct xlog_recover_item_type xlog_icreate_item_type;
> +extern const struct xlog_recover_item_type xlog_buf_item_type;
> +extern const struct xlog_recover_item_type xlog_inode_item_type;
> +extern const struct xlog_recover_item_type xlog_dquot_item_type;
> +extern const struct xlog_recover_item_type xlog_quotaoff_item_type;
> +extern const struct xlog_recover_item_type xlog_bmap_intent_item_type;
> +extern const struct xlog_recover_item_type xlog_bmap_done_item_type;
> +extern const struct xlog_recover_item_type xlog_extfree_intent_item_type;
> +extern const struct xlog_recover_item_type xlog_extfree_done_item_type;
> +extern const struct xlog_recover_item_type xlog_rmap_intent_item_type;
> +extern const struct xlog_recover_item_type xlog_rmap_done_item_type;
> +extern const struct xlog_recover_item_type xlog_refcount_intent_item_type;
> +extern const struct xlog_recover_item_type xlog_refcount_done_item_type;
> +
> /*
> * Macros, structures, prototypes for internal log manager use.
> */
> @@ -24,10 +63,10 @@
> */
> typedef struct xlog_recover_item {
> struct list_head ri_list;
> - int ri_type;
> int ri_cnt; /* count of regions found */
> int ri_total; /* total regions */
> xfs_log_iovec_t *ri_buf; /* ptr to regions buffer */
> + const struct xlog_recover_item_type *ri_type;
> } xlog_recover_item_t;
>
> struct xlog_recover {
> diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
> index ee6f4229cebc..a2824013e2cb 100644
> --- a/fs/xfs/xfs_bmap_item.c
> +++ b/fs/xfs/xfs_bmap_item.c
> @@ -22,6 +22,7 @@
> #include "xfs_bmap_btree.h"
> #include "xfs_trans_space.h"
> #include "xfs_error.h"
> +#include "xfs_log_recover.h"
>
> kmem_zone_t *xfs_bui_zone;
> kmem_zone_t *xfs_bud_zone;
> @@ -563,3 +564,9 @@ xfs_bui_recover(
> }
> return error;
> }
> +
> +const struct xlog_recover_item_type xlog_bmap_intent_item_type = {
> +};
> +
> +const struct xlog_recover_item_type xlog_bmap_done_item_type = {
> +};
> diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
> index 1545657c3ca0..a416fc35e444 100644
> --- a/fs/xfs/xfs_buf_item.c
> +++ b/fs/xfs/xfs_buf_item.c
> @@ -17,7 +17,6 @@
> #include "xfs_trace.h"
> #include "xfs_log.h"
>
> -
> kmem_zone_t *xfs_buf_item_zone;
>
> static inline struct xfs_buf_log_item *BUF_ITEM(struct xfs_log_item *lip)
> diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
> new file mode 100644
> index 000000000000..07ddf58209c3
> --- /dev/null
> +++ b/fs/xfs/xfs_buf_item_recover.c
> @@ -0,0 +1,37 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2000-2006 Silicon Graphics, Inc.
> + * All Rights Reserved.
> + */
> +#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_trans.h"
> +#include "xfs_buf_item.h"
> +#include "xfs_trans_priv.h"
> +#include "xfs_trace.h"
> +#include "xfs_log.h"
> +#include "xfs_log_priv.h"
> +#include "xfs_log_recover.h"
> +
> +STATIC enum xlog_recover_reorder
> +xlog_buf_reorder_fn(
> + struct xlog_recover_item *item)
> +{
> + struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
> +
> + if (buf_f->blf_flags & XFS_BLF_CANCEL)
> + return XLOG_REORDER_CANCEL_LIST;
> + if (buf_f->blf_flags & XFS_BLF_INODE_BUF)
> + return XLOG_REORDER_INODE_BUFFER_LIST;
> + return XLOG_REORDER_BUFFER_LIST;
> +}
> +
> +const struct xlog_recover_item_type xlog_buf_item_type = {
> + .reorder_fn = xlog_buf_reorder_fn,
> +};
> diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
> index baad1748d0d1..3bd5b6c7e235 100644
> --- a/fs/xfs/xfs_dquot_item.c
> +++ b/fs/xfs/xfs_dquot_item.c
> @@ -17,6 +17,8 @@
> #include "xfs_trans_priv.h"
> #include "xfs_qm.h"
> #include "xfs_log.h"
> +#include "xfs_log_priv.h"
> +#include "xfs_log_recover.h"
>
> static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
> {
> @@ -383,3 +385,9 @@ xfs_qm_qoff_logitem_init(
> qf->qql_flags = flags;
> return qf;
> }
> +
> +const struct xlog_recover_item_type xlog_dquot_item_type = {
> +};
> +
> +const struct xlog_recover_item_type xlog_quotaoff_item_type = {
> +};
> diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
> index 6ea847f6e298..c53e5f46ee26 100644
> --- a/fs/xfs/xfs_extfree_item.c
> +++ b/fs/xfs/xfs_extfree_item.c
> @@ -22,6 +22,7 @@
> #include "xfs_bmap.h"
> #include "xfs_trace.h"
> #include "xfs_error.h"
> +#include "xfs_log_recover.h"
>
> kmem_zone_t *xfs_efi_zone;
> kmem_zone_t *xfs_efd_zone;
> @@ -652,3 +653,9 @@ xfs_efi_recover(
> xfs_trans_cancel(tp);
> return error;
> }
> +
> +const struct xlog_recover_item_type xlog_extfree_intent_item_type = {
> +};
> +
> +const struct xlog_recover_item_type xlog_extfree_done_item_type = {
> +};
> diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c
> index 490fee22b878..9f38a3c200a3 100644
> --- a/fs/xfs/xfs_icreate_item.c
> +++ b/fs/xfs/xfs_icreate_item.c
> @@ -11,6 +11,8 @@
> #include "xfs_trans_priv.h"
> #include "xfs_icreate_item.h"
> #include "xfs_log.h"
> +#include "xfs_log_priv.h"
> +#include "xfs_log_recover.h"
>
> kmem_zone_t *xfs_icreate_zone; /* inode create item zone */
>
> @@ -107,3 +109,14 @@ xfs_icreate_log(
> tp->t_flags |= XFS_TRANS_DIRTY;
> set_bit(XFS_LI_DIRTY, &icp->ic_item.li_flags);
> }
> +
> +static enum xlog_recover_reorder
> +xlog_icreate_reorder(
> + struct xlog_recover_item *item)
> +{
> + return XLOG_REORDER_BUFFER_LIST;
> +}
> +
> +const struct xlog_recover_item_type xlog_icreate_item_type = {
> + .reorder_fn = xlog_icreate_reorder,
> +};
> diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
> new file mode 100644
> index 000000000000..478f0a5c08ab
> --- /dev/null
> +++ b/fs/xfs/xfs_inode_item_recover.c
> @@ -0,0 +1,25 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2000-2006 Silicon Graphics, Inc.
> + * All Rights Reserved.
> + */
> +#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_mount.h"
> +#include "xfs_inode.h"
> +#include "xfs_trans.h"
> +#include "xfs_inode_item.h"
> +#include "xfs_trace.h"
> +#include "xfs_trans_priv.h"
> +#include "xfs_buf_item.h"
> +#include "xfs_log.h"
> +#include "xfs_error.h"
> +#include "xfs_log_priv.h"
> +#include "xfs_log_recover.h"
> +
> +const struct xlog_recover_item_type xlog_inode_item_type = {
> +};
> diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
> index db47dfc0cada..8ab107680883 100644
> --- a/fs/xfs/xfs_log_recover.c
> +++ b/fs/xfs/xfs_log_recover.c
> @@ -1786,6 +1786,57 @@ xlog_clear_stale_blocks(
> ******************************************************************************
> */
>
> +static int
> +xlog_set_item_type(
> + struct xlog_recover_item *item)
> +{
> + switch (ITEM_TYPE(item)) {
> + case XFS_LI_ICREATE:
> + item->ri_type = &xlog_icreate_item_type;
> + return 0;
> + case XFS_LI_BUF:
> + item->ri_type = &xlog_buf_item_type;
> + return 0;
> + case XFS_LI_EFI:
> + item->ri_type = &xlog_extfree_intent_item_type;
> + return 0;
> + case XFS_LI_EFD:
> + item->ri_type = &xlog_extfree_done_item_type;
> + return 0;
> + case XFS_LI_RUI:
> + item->ri_type = &xlog_rmap_intent_item_type;
> + return 0;
> + case XFS_LI_RUD:
> + item->ri_type = &xlog_rmap_done_item_type;
> + return 0;
> + case XFS_LI_CUI:
> + item->ri_type = &xlog_refcount_intent_item_type;
> + return 0;
> + case XFS_LI_CUD:
> + item->ri_type = &xlog_refcount_done_item_type;
> + return 0;
> + case XFS_LI_BUI:
> + item->ri_type = &xlog_bmap_intent_item_type;
> + return 0;
> + case XFS_LI_BUD:
> + item->ri_type = &xlog_bmap_done_item_type;
> + return 0;
> + case XFS_LI_INODE:
> + item->ri_type = &xlog_inode_item_type;
> + return 0;
> +#ifdef CONFIG_XFS_QUOTA
> + case XFS_LI_DQUOT:
> + item->ri_type = &xlog_dquot_item_type;
> + return 0;
> + case XFS_LI_QUOTAOFF:
> + item->ri_type = &xlog_quotaoff_item_type;
> + return 0;
> +#endif /* CONFIG_XFS_QUOTA */
> + default:
> + return -EFSCORRUPTED;
> + }
> +}
> +
> /*
> * Sort the log items in the transaction.
> *
> @@ -1851,41 +1902,10 @@ xlog_recover_reorder_trans(
>
> list_splice_init(&trans->r_itemq, &sort_list);
> list_for_each_entry_safe(item, n, &sort_list, ri_list) {
> - xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr;
> + enum xlog_recover_reorder fate = XLOG_REORDER_ITEM_LIST;
>
> - switch (ITEM_TYPE(item)) {
> - case XFS_LI_ICREATE:
> - list_move_tail(&item->ri_list, &buffer_list);
> - break;
> - case XFS_LI_BUF:
> - if (buf_f->blf_flags & XFS_BLF_CANCEL) {
> - trace_xfs_log_recover_item_reorder_head(log,
> - trans, item, pass);
> - list_move(&item->ri_list, &cancel_list);
> - break;
> - }
> - if (buf_f->blf_flags & XFS_BLF_INODE_BUF) {
> - list_move(&item->ri_list, &inode_buffer_list);
> - break;
> - }
> - list_move_tail(&item->ri_list, &buffer_list);
> - break;
> - case XFS_LI_INODE:
> - case XFS_LI_DQUOT:
> - case XFS_LI_QUOTAOFF:
> - case XFS_LI_EFD:
> - case XFS_LI_EFI:
> - case XFS_LI_RUI:
> - case XFS_LI_RUD:
> - case XFS_LI_CUI:
> - case XFS_LI_CUD:
> - case XFS_LI_BUI:
> - case XFS_LI_BUD:
> - trace_xfs_log_recover_item_reorder_tail(log,
> - trans, item, pass);
> - list_move_tail(&item->ri_list, &item_list);
> - break;
> - default:
> + error = xlog_set_item_type(item);
> + if (error) {
> xfs_warn(log->l_mp,
> "%s: unrecognized type of log operation (%d)",
> __func__, ITEM_TYPE(item));
> @@ -1896,11 +1916,32 @@ xlog_recover_reorder_trans(
> */
> if (!list_empty(&sort_list))
> list_splice_init(&sort_list, &trans->r_itemq);
> - error = -EIO;
> - goto out;
> + break;
> + }
> +
> + if (item->ri_type->reorder_fn)
> + fate = item->ri_type->reorder_fn(item);
> +
> + switch (fate) {
> + case XLOG_REORDER_BUFFER_LIST:
> + list_move_tail(&item->ri_list, &buffer_list);
> + break;
> + case XLOG_REORDER_CANCEL_LIST:
> + trace_xfs_log_recover_item_reorder_head(log,
> + trans, item, pass);
> + list_move(&item->ri_list, &cancel_list);
> + break;
> + case XLOG_REORDER_INODE_BUFFER_LIST:
> + list_move(&item->ri_list, &inode_buffer_list);
> + break;
> + case XLOG_REORDER_ITEM_LIST:
> + trace_xfs_log_recover_item_reorder_tail(log,
> + trans, item, pass);
> + list_move_tail(&item->ri_list, &item_list);
> + break;
> }
> }
> -out:
> +
> ASSERT(list_empty(&sort_list));
> if (!list_empty(&buffer_list))
> list_splice(&buffer_list, &trans->r_itemq);
> diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
> index 8eeed73928cd..ddab09385bfb 100644
> --- a/fs/xfs/xfs_refcount_item.c
> +++ b/fs/xfs/xfs_refcount_item.c
> @@ -18,6 +18,7 @@
> #include "xfs_log.h"
> #include "xfs_refcount.h"
> #include "xfs_error.h"
> +#include "xfs_log_recover.h"
>
> kmem_zone_t *xfs_cui_zone;
> kmem_zone_t *xfs_cud_zone;
> @@ -590,3 +591,9 @@ xfs_cui_recover(
> xfs_trans_cancel(tp);
> return error;
> }
> +
> +const struct xlog_recover_item_type xlog_refcount_intent_item_type = {
> +};
> +
> +const struct xlog_recover_item_type xlog_refcount_done_item_type = {
> +};
> diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
> index 4911b68f95dd..bcad3db1f3a4 100644
> --- a/fs/xfs/xfs_rmap_item.c
> +++ b/fs/xfs/xfs_rmap_item.c
> @@ -18,6 +18,7 @@
> #include "xfs_log.h"
> #include "xfs_rmap.h"
> #include "xfs_error.h"
> +#include "xfs_log_recover.h"
>
> kmem_zone_t *xfs_rui_zone;
> kmem_zone_t *xfs_rud_zone;
> @@ -606,3 +607,9 @@ xfs_rui_recover(
> xfs_trans_cancel(tp);
> return error;
> }
> +
> +const struct xlog_recover_item_type xlog_rmap_intent_item_type = {
> +};
> +
> +const struct xlog_recover_item_type xlog_rmap_done_item_type = {
> +};
>
>
--
chandan
next prev parent reply other threads:[~2020-05-01 10:37 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-30 0:47 [PATCH v2 00/21] xfs: refactor log recovery Darrick J. Wong
2020-04-30 0:47 ` [PATCH 01/21] xfs: refactor log recovery item sorting into a generic dispatch structure Darrick J. Wong
2020-04-30 5:53 ` Christoph Hellwig
2020-04-30 15:08 ` Darrick J. Wong
2020-04-30 18:16 ` Darrick J. Wong
2020-05-01 8:08 ` Christoph Hellwig
2020-05-01 10:40 ` Chandan Rajendra [this message]
2020-04-30 0:47 ` [PATCH 02/21] xfs: refactor log recovery item dispatch for pass2 readhead functions Darrick J. Wong
2020-05-01 12:10 ` Chandan Rajendra
2020-04-30 0:47 ` [PATCH 03/21] xfs: refactor log recovery item dispatch for pass1 commit functions Darrick J. Wong
2020-04-30 0:48 ` [PATCH 04/21] xfs: refactor log recovery buffer item dispatch for pass2 " Darrick J. Wong
2020-05-01 13:43 ` Chandan Rajendra
2020-04-30 0:48 ` [PATCH 05/21] xfs: refactor log recovery inode " Darrick J. Wong
2020-05-01 14:03 ` Chandan Rajendra
2020-04-30 0:48 ` [PATCH 06/21] xfs: refactor log recovery dquot " Darrick J. Wong
2020-05-01 14:14 ` Chandan Rajendra
2020-04-30 0:48 ` [PATCH 07/21] xfs: refactor log recovery icreate " Darrick J. Wong
2020-05-01 14:18 ` Chandan Rajendra
2020-04-30 0:48 ` [PATCH 08/21] xfs: remove log recovery quotaoff " Darrick J. Wong
2020-05-01 15:09 ` Chandan Rajendra
2020-05-01 17:41 ` Darrick J. Wong
2020-04-30 0:48 ` [PATCH 09/21] xfs: refactor log recovery EFI " Darrick J. Wong
2020-05-01 10:28 ` Christoph Hellwig
2020-05-01 17:56 ` Darrick J. Wong
2020-04-30 0:48 ` [PATCH 10/21] xfs: refactor log recovery RUI " Darrick J. Wong
2020-04-30 0:48 ` [PATCH 11/21] xfs: refactor log recovery CUI " Darrick J. Wong
2020-04-30 0:48 ` [PATCH 12/21] xfs: refactor log recovery BUI " Darrick J. Wong
2020-04-30 0:48 ` [PATCH 13/21] xfs: refactor recovered EFI log item playback Darrick J. Wong
2020-05-01 10:19 ` Christoph Hellwig
2020-05-01 17:58 ` Darrick J. Wong
2020-04-30 0:49 ` [PATCH 14/21] xfs: refactor recovered RUI " Darrick J. Wong
2020-04-30 0:49 ` [PATCH 15/21] xfs: refactor recovered CUI " Darrick J. Wong
2020-04-30 0:49 ` [PATCH 16/21] xfs: refactor recovered BUI " Darrick J. Wong
2020-04-30 0:49 ` [PATCH 17/21] xfs: refactor releasing finished intents during log recovery Darrick J. Wong
2020-04-30 0:49 ` [PATCH 18/21] xfs: refactor adding recovered intent items to the log Darrick J. Wong
2020-04-30 0:49 ` [PATCH 19/21] xfs: refactor intent item RECOVERED flag into the log item Darrick J. Wong
2020-04-30 0:49 ` [PATCH 20/21] xfs: refactor intent item iop_recover calls Darrick J. Wong
2020-04-30 0:49 ` [PATCH 21/21] xfs: remove unnecessary includes from xfs_log_recover.c Darrick J. Wong
2020-05-01 10:15 ` [PATCH v2 00/21] xfs: refactor log recovery Christoph Hellwig
2020-05-01 16:53 ` Darrick J. Wong
2020-05-01 17:03 ` Christoph Hellwig
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