Merge tag 'xfs-merge-6.19' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Carlos Maiolino:
 "There are no major changes in xfs. This contains mostly some code
  cleanups, a few bug fixes and documentation update. Highlights are:

   - Quota locking cleanup

   - Getting rid of old xlog_in_core_2_t type"

* tag 'xfs-merge-6.19' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (33 commits)
  docs: remove obsolete links in the xfs online repair documentation
  xfs: move some code out of xfs_iget_recycle
  xfs: use zi more in xfs_zone_gc_mount
  xfs: remove the unused bv field in struct xfs_gc_bio
  xfs: remove xarray mark for reclaimable zones
  xfs: remove the xlog_in_core_t typedef
  xfs: remove l_iclog_heads
  xfs: remove the xlog_rec_header_t typedef
  xfs: remove xlog_in_core_2_t
  xfs: remove a very outdated comment from xlog_alloc_log
  xfs: cleanup xlog_alloc_log a bit
  xfs: don't use xlog_in_core_2_t in struct xlog_in_core
  xfs: add a on-disk log header cycle array accessor
  xfs: add a XLOG_CYCLE_DATA_SIZE constant
  xfs: reduce ilock roundtrips in xfs_qm_vop_dqalloc
  xfs: move xfs_dquot_tree calls into xfs_qm_dqget_cache_{lookup,insert}
  xfs: move quota locking into xrep_quota_item
  xfs: move quota locking into xqcheck_commit_dquot
  xfs: move q_qlock locking into xqcheck_compare_dquot
  xfs: move q_qlock locking into xchk_quota_item
  ...

Author: torvalds

Documentation/filesystems/xfs/xfs-online-fsck-design.rst

@@ -98,6 +98,15 @@ xfs_group_max_blocks(
 	return xg->xg_mount->m_groups[xg->xg_type].blocks;
 }
 
+static inline xfs_rfsblock_t
+xfs_groups_to_rfsbs(
+	struct xfs_mount	*mp,
+	uint32_t		nr_groups,
+	enum xfs_group_type	type)
+{
+	return (xfs_rfsblock_t)mp->m_groups[type].blocks * nr_groups;
+}
+
 static inline xfs_fsblock_t
 xfs_group_start_fsb(
 	struct xfs_group	*xg)

fs/xfs/libxfs/xfs_group.h

@@ -31,6 +31,7 @@ typedef uint32_t xlog_tid_t;
 #define XLOG_BIG_RECORD_BSIZE	(32*1024)	/* 32k buffers */
 #define XLOG_MAX_RECORD_BSIZE	(256*1024)
 #define XLOG_HEADER_CYCLE_SIZE	(32*1024)	/* cycle data in header */
+#define XLOG_CYCLE_DATA_SIZE	(XLOG_HEADER_CYCLE_SIZE / BBSIZE)
 #define XLOG_MIN_RECORD_BSHIFT	14		/* 16384 == 1 << 14 */
 #define XLOG_BIG_RECORD_BSHIFT	15		/* 32k == 1 << 15 */
 #define XLOG_MAX_RECORD_BSHIFT	18		/* 256k == 1 << 18 */
@@ -125,7 +126,17 @@ struct xlog_op_header {
 #define XLOG_FMT XLOG_FMT_LINUX_LE
 #endif
 
-typedef struct xlog_rec_header {
+struct xlog_rec_ext_header {
+	__be32		xh_cycle;	/* write cycle of log */
+	__be32		xh_cycle_data[XLOG_CYCLE_DATA_SIZE];
+	__u8		xh_reserved[252];
+};
+
+/* actual ext header payload size for checksumming */
+#define XLOG_REC_EXT_SIZE \
+	offsetofend(struct xlog_rec_ext_header, xh_cycle_data)
+
+struct xlog_rec_header {
 	__be32	  h_magicno;	/* log record (LR) identifier		:  4 */
 	__be32	  h_cycle;	/* write cycle of log			:  4 */
 	__be32	  h_version;	/* LR version				:  4 */
@@ -135,7 +146,7 @@ typedef struct xlog_rec_header {
 	__le32	  h_crc;	/* crc of log record                    :  4 */
 	__be32	  h_prev_block; /* block number to previous LR		:  4 */
 	__be32	  h_num_logops;	/* number of log operations in this LR	:  4 */
-	__be32	  h_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE];
+	__be32	  h_cycle_data[XLOG_CYCLE_DATA_SIZE];
 
 	/* fields added by the Linux port: */
 	__be32    h_fmt;        /* format of log record                 :  4 */
@@ -160,30 +171,19 @@ typedef struct xlog_rec_header {
 	 * (little-endian) architectures.
 	 */
 	__u32	  h_pad0;
-} xlog_rec_header_t;
+
+	__u8	  h_reserved[184];
+	struct xlog_rec_ext_header h_ext[];
+};
 
 #ifdef __i386__
 #define XLOG_REC_SIZE		offsetofend(struct xlog_rec_header, h_size)
-#define XLOG_REC_SIZE_OTHER	sizeof(struct xlog_rec_header)
+#define XLOG_REC_SIZE_OTHER	offsetofend(struct xlog_rec_header, h_pad0)
 #else
-#define XLOG_REC_SIZE		sizeof(struct xlog_rec_header)
+#define XLOG_REC_SIZE		offsetofend(struct xlog_rec_header, h_pad0)
 #define XLOG_REC_SIZE_OTHER	offsetofend(struct xlog_rec_header, h_size)
 #endif /* __i386__ */
 
-typedef struct xlog_rec_ext_header {
-	__be32	  xh_cycle;	/* write cycle of log			: 4 */
-	__be32	  xh_cycle_data[XLOG_HEADER_CYCLE_SIZE / BBSIZE]; /*	: 256 */
-} xlog_rec_ext_header_t;
-
-/*
- * Quite misnamed, because this union lays out the actual on-disk log buffer.
- */
-typedef union xlog_in_core2 {
-	xlog_rec_header_t	hic_header;
-	xlog_rec_ext_header_t	hic_xheader;
-	char			hic_sector[XLOG_HEADER_SIZE];
-} xlog_in_core_2_t;
-
 /* not an on-disk structure, but needed by log recovery in userspace */
 struct xfs_log_iovec {
 	void		*i_addr;	/* beginning address of region */

fs/xfs/libxfs/xfs_log_format.h

@@ -174,9 +174,11 @@ xfs_check_ondisk_structs(void)
 	XFS_CHECK_STRUCT_SIZE(struct xfs_rud_log_format,	16);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_map_extent,		32);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_phys_extent,		16);
-	XFS_CHECK_STRUCT_SIZE(struct xlog_rec_header,		328);
-	XFS_CHECK_STRUCT_SIZE(struct xlog_rec_ext_header,	260);
+	XFS_CHECK_STRUCT_SIZE(struct xlog_rec_header,		512);
+	XFS_CHECK_STRUCT_SIZE(struct xlog_rec_ext_header,	512);
 
+	XFS_CHECK_OFFSET(struct xlog_rec_header, h_reserved,		328);
+	XFS_CHECK_OFFSET(struct xlog_rec_ext_header, xh_reserved,	260);
 	XFS_CHECK_OFFSET(struct xfs_bui_log_format, bui_extents,	16);
 	XFS_CHECK_OFFSET(struct xfs_cui_log_format, cui_extents,	16);
 	XFS_CHECK_OFFSET(struct xfs_rui_log_format, rui_extents,	16);

fs/xfs/libxfs/xfs_ondisk.h

@@ -29,11 +29,9 @@ typedef uint8_t		xfs_dqtype_t;
  * flags for q_flags field in the dquot.
  */
 #define XFS_DQFLAG_DIRTY	(1u << 0)	/* dquot is dirty */
-#define XFS_DQFLAG_FREEING	(1u << 1)	/* dquot is being torn down */
 
 #define XFS_DQFLAG_STRINGS \
-	{ XFS_DQFLAG_DIRTY,	"DIRTY" }, \
-	{ XFS_DQFLAG_FREEING,	"FREEING" }
+	{ XFS_DQFLAG_DIRTY,	"DIRTY" }
 
 /*
  * We have the possibility of all three quota types being active at once, and

fs/xfs/libxfs/xfs_quota_defs.h

@@ -64,12 +64,6 @@ struct xfs_rtgroup {
  */
 #define XFS_RTG_FREE			XA_MARK_0
 
-/*
- * For zoned RT devices this is set on groups that are fully written and that
- * have unused blocks.  Used by the garbage collection to pick targets.
- */
-#define XFS_RTG_RECLAIMABLE		XA_MARK_1
-
 static inline struct xfs_rtgroup *to_rtg(struct xfs_group *xg)
 {
 	return container_of(xg, struct xfs_rtgroup, rtg_group);
@@ -371,4 +365,12 @@ static inline int xfs_initialize_rtgroups(struct xfs_mount *mp,
 # define xfs_rtgroup_get_geometry(rtg, rgeo)	(-EOPNOTSUPP)
 #endif /* CONFIG_XFS_RT */
 
+static inline xfs_rfsblock_t
+xfs_rtgs_to_rfsbs(
+	struct xfs_mount	*mp,
+	uint32_t		nr_groups)
+{
+	return xfs_groups_to_rfsbs(mp, nr_groups, XG_TYPE_RTG);
+}
+
 #endif /* __LIBXFS_RTGROUP_H */

fs/xfs/libxfs/xfs_rtgroup.h

@@ -155,12 +155,9 @@ xchk_quota_item(
 	 * We want to validate the bmap record for the storage backing this
 	 * dquot, so we need to lock the dquot and the quota file.  For quota
 	 * operations, the locking order is first the ILOCK and then the dquot.
-	 * However, dqiterate gave us a locked dquot, so drop the dquot lock to
-	 * get the ILOCK.
 	 */
-	xfs_dqunlock(dq);
 	xchk_ilock(sc, XFS_ILOCK_SHARED);
-	xfs_dqlock(dq);
+	mutex_lock(&dq->q_qlock);
 
 	/*
 	 * Except for the root dquot, the actual dquot we got must either have
@@ -251,6 +248,7 @@ xchk_quota_item(
 	xchk_quota_item_timer(sc, offset, &dq->q_rtb);
 
 out:
+	mutex_unlock(&dq->q_qlock);
 	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
 		return -ECANCELED;
 
@@ -330,7 +328,7 @@ xchk_quota(
 	xchk_dqiter_init(&cursor, sc, dqtype);
 	while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
 		error = xchk_quota_item(&sqi, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			break;
 	}

fs/xfs/scrub/quota.c

@@ -184,17 +184,13 @@ xrep_quota_item(
 	/*
 	 * We might need to fix holes in the bmap record for the storage
 	 * backing this dquot, so we need to lock the dquot and the quota file.
-	 * dqiterate gave us a locked dquot, so drop the dquot lock to get the
-	 * ILOCK_EXCL.
 	 */
-	xfs_dqunlock(dq);
 	xchk_ilock(sc, XFS_ILOCK_EXCL);
-	xfs_dqlock(dq);
-
+	mutex_lock(&dq->q_qlock);
 	error = xrep_quota_item_bmap(sc, dq, &dirty);
 	xchk_iunlock(sc, XFS_ILOCK_EXCL);
 	if (error)
-		return error;
+		goto out_unlock_dquot;
 
 	/* Check the limits. */
 	if (dq->q_blk.softlimit > dq->q_blk.hardlimit) {
@@ -246,7 +242,7 @@ xrep_quota_item(
 	xrep_quota_item_timer(sc, &dq->q_rtb, &dirty);
 
 	if (!dirty)
-		return 0;
+		goto out_unlock_dquot;
 
 	trace_xrep_dquot_item(sc->mp, dq->q_type, dq->q_id);
 
@@ -257,8 +253,10 @@ xrep_quota_item(
 		xfs_qm_adjust_dqtimers(dq);
 	}
 	xfs_trans_log_dquot(sc->tp, dq);
-	error = xfs_trans_roll(&sc->tp);
-	xfs_dqlock(dq);
+	return xfs_trans_roll(&sc->tp);
+
+out_unlock_dquot:
+	mutex_unlock(&dq->q_qlock);
 	return error;
 }
 
@@ -513,7 +511,7 @@ xrep_quota_problems(
 	xchk_dqiter_init(&cursor, sc, dqtype);
 	while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
 		error = xrep_quota_item(&rqi, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			break;
 	}

fs/xfs/scrub/quota_repair.c

@@ -563,6 +563,7 @@ xqcheck_compare_dquot(
 		return -ECANCELED;
 	}
 
+	mutex_lock(&dq->q_qlock);
 	mutex_lock(&xqc->lock);
 	error = xfarray_load_sparse(counts, dq->q_id, &xcdq);
 	if (error)
@@ -589,18 +590,16 @@ xqcheck_compare_dquot(
 		xchk_set_incomplete(xqc->sc);
 		error = -ECANCELED;
 	}
+out_unlock:
 	mutex_unlock(&xqc->lock);
+	mutex_unlock(&dq->q_qlock);
 	if (error)
 		return error;
 
 	if (xqc->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
 		return -ECANCELED;
 
 	return 0;
-
-out_unlock:
-	mutex_unlock(&xqc->lock);
-	return error;
 }
 
 /*
@@ -636,7 +635,7 @@ xqcheck_walk_observations(
 			return error;
 
 		error = xqcheck_compare_dquot(xqc, dqtype, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			return error;
 
@@ -674,7 +673,7 @@ xqcheck_compare_dqtype(
 	xchk_dqiter_init(&cursor, sc, dqtype);
 	while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
 		error = xqcheck_compare_dquot(xqc, dqtype, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			break;
 	}

fs/xfs/scrub/quotacheck.c

@@ -52,13 +52,11 @@ xqcheck_commit_dquot(
 	bool			dirty = false;
 	int			error = 0;
 
-	/* Unlock the dquot just long enough to allocate a transaction. */
-	xfs_dqunlock(dq);
 	error = xchk_trans_alloc(xqc->sc, 0);
-	xfs_dqlock(dq);
 	if (error)
 		return error;
 
+	mutex_lock(&dq->q_qlock);
 	xfs_trans_dqjoin(xqc->sc->tp, dq);
 
 	if (xchk_iscan_aborted(&xqc->iscan)) {
@@ -115,23 +113,12 @@ xqcheck_commit_dquot(
 	if (dq->q_id)
 		xfs_qm_adjust_dqtimers(dq);
 	xfs_trans_log_dquot(xqc->sc->tp, dq);
-
-	/*
-	 * Transaction commit unlocks the dquot, so we must re-lock it so that
-	 * the caller can put the reference (which apparently requires a locked
-	 * dquot).
-	 */
-	error = xrep_trans_commit(xqc->sc);
-	xfs_dqlock(dq);
-	return error;
+	return xrep_trans_commit(xqc->sc);
 
 out_unlock:
 	mutex_unlock(&xqc->lock);
 out_cancel:
 	xchk_trans_cancel(xqc->sc);
-
-	/* Re-lock the dquot so the caller can put the reference. */
-	xfs_dqlock(dq);
 	return error;
 }
 
@@ -156,7 +143,7 @@ xqcheck_commit_dqtype(
 	xchk_dqiter_init(&cursor, sc, dqtype);
 	while ((error = xchk_dquot_iter(&cursor, &dq)) == 1) {
 		error = xqcheck_commit_dquot(xqc, dqtype, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			break;
 	}
@@ -187,7 +174,7 @@ xqcheck_commit_dqtype(
 			return error;
 
 		error = xqcheck_commit_dquot(xqc, dqtype, dq);
-		xfs_qm_dqput(dq);
+		xfs_qm_dqrele(dq);
 		if (error)
 			return error;