From: Darrick J. Wong <djwong@xxxxxxxxxx>
Create an incore object that will contain information about a realtime
allocation group. This will eventually enable us to shard the realtime
section in a similar manner to how we shard the data section.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
fs/xfs/Makefile | 1
fs/xfs/libxfs/xfs_format.h | 8 ++
fs/xfs/libxfs/xfs_rtgroup.c | 214 +++++++++++++++++++++++++++++++++++++++++++
fs/xfs/libxfs/xfs_rtgroup.h | 121 ++++++++++++++++++++++++
fs/xfs/libxfs/xfs_sb.c | 5 +
fs/xfs/libxfs/xfs_types.h | 4 +
fs/xfs/xfs_log_recover.c | 6 +
fs/xfs/xfs_mount.c | 12 ++
fs/xfs/xfs_mount.h | 6 +
fs/xfs/xfs_rtalloc.c | 14 ++-
fs/xfs/xfs_super.c | 2
fs/xfs/xfs_trace.h | 34 +++++++
12 files changed, 423 insertions(+), 4 deletions(-)
create mode 100644 fs/xfs/libxfs/xfs_rtgroup.c
create mode 100644 fs/xfs/libxfs/xfs_rtgroup.h
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 3d74696755c3..135a403c0edc 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -57,6 +57,7 @@ xfs-y += $(addprefix libxfs/, \
# xfs_rtbitmap is shared with libxfs
xfs-$(CONFIG_XFS_RT) += $(addprefix libxfs/, \
xfs_rtbitmap.o \
+ xfs_rtgroup.o \
)
# highlevel code
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 946870eb492c..ca87a3f8704a 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -184,6 +184,14 @@ typedef struct xfs_sb {
*/
xfs_ino_t sb_metadirino;
+ /*
+ * Realtime group geometry information. On disk these fields live in
+ * the rsumino slot, but we cache them separately in the in-core super
+ * for easy access.
+ */
+ xfs_rgblock_t sb_rgblocks; /* size of a realtime group */
+ xfs_rgnumber_t sb_rgcount; /* number of realtime groups */
+
/* must be padded to 64 bit alignment */
} xfs_sb_t;
diff --git a/fs/xfs/libxfs/xfs_rtgroup.c b/fs/xfs/libxfs/xfs_rtgroup.c
new file mode 100644
index 000000000000..ced2bd896106
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_rtgroup.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2022 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@xxxxxxxxxx>
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_bit.h"
+#include "xfs_sb.h"
+#include "xfs_mount.h"
+#include "xfs_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_rmap_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_rmap.h"
+#include "xfs_ag.h"
+#include "xfs_ag_resv.h"
+#include "xfs_health.h"
+#include "xfs_error.h"
+#include "xfs_bmap.h"
+#include "xfs_defer.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_trace.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_rtgroup.h"
+#include "xfs_rtbitmap.h"
+
+/*
+ * Passive reference counting access wrappers to the rtgroup structures. If
+ * the rtgroup structure is to be freed, the freeing code is responsible for
+ * cleaning up objects with passive references before freeing the structure.
+ */
+struct xfs_rtgroup *
+xfs_rtgroup_get(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ struct xfs_rtgroup *rtg;
+ int ref = 0;
+
+ rcu_read_lock();
+ rtg = radix_tree_lookup(&mp->m_rtgroup_tree, rgno);
+ if (rtg) {
+ ASSERT(atomic_read(&rtg->rtg_ref) >= 0);
+ ref = atomic_inc_return(&rtg->rtg_ref);
+ }
+ rcu_read_unlock();
+ trace_xfs_rtgroup_get(mp, rgno, ref, _RET_IP_);
+ return rtg;
+}
+
+struct xfs_rtgroup *
+xfs_rtgroup_bump(
+ struct xfs_rtgroup *rtg)
+{
+ if (!atomic_inc_not_zero(&rtg->rtg_ref)) {
+ ASSERT(0);
+ return NULL;
+ }
+
+ trace_xfs_rtgroup_bump(rtg->rtg_mount, rtg->rtg_rgno,
+ atomic_read(&rtg->rtg_ref), _RET_IP_);
+ return rtg;
+}
+
+void
+xfs_rtgroup_put(
+ struct xfs_rtgroup *rtg)
+{
+ int ref;
+
+ ASSERT(atomic_read(&rtg->rtg_ref) > 0);
+ ref = atomic_dec_return(&rtg->rtg_ref);
+ trace_xfs_rtgroup_put(rtg->rtg_mount, rtg->rtg_rgno, ref, _RET_IP_);
+}
+
+int
+xfs_initialize_rtgroups(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgcount)
+{
+ struct xfs_rtgroup *rtg;
+ xfs_rgnumber_t index;
+ xfs_rgnumber_t first_initialised = NULLRGNUMBER;
+ int error;
+
+ if (!xfs_has_rtgroups(mp))
+ return 0;
+
+ /*
+ * Walk the current rtgroup tree so we don't try to initialise rt
+ * groups that already exist (growfs case). Allocate and insert all the
+ * rtgroups we don't find ready for initialisation.
+ */
+ for (index = 0; index < rgcount; index++) {
+ rtg = xfs_rtgroup_get(mp, index);
+ if (rtg) {
+ xfs_rtgroup_put(rtg);
+ continue;
+ }
+
+ rtg = kmem_zalloc(sizeof(struct xfs_rtgroup), KM_MAYFAIL);
+ if (!rtg) {
+ error = -ENOMEM;
+ goto out_unwind_new_rtgs;
+ }
+ rtg->rtg_rgno = index;
+ rtg->rtg_mount = mp;
+
+ error = radix_tree_preload(GFP_NOFS);
+ if (error)
+ goto out_free_rtg;
+
+ spin_lock(&mp->m_rtgroup_lock);
+ if (radix_tree_insert(&mp->m_rtgroup_tree, index, rtg)) {
+ WARN_ON_ONCE(1);
+ spin_unlock(&mp->m_rtgroup_lock);
+ radix_tree_preload_end();
+ error = -EEXIST;
+ goto out_free_rtg;
+ }
+ spin_unlock(&mp->m_rtgroup_lock);
+ radix_tree_preload_end();
+
+#ifdef __KERNEL__
+ /* Place kernel structure only init below this point. */
+ spin_lock_init(&rtg->rtg_state_lock);
+#endif /* __KERNEL__ */
+
+ /* first new rtg is fully initialized */
+ if (first_initialised == NULLRGNUMBER)
+ first_initialised = index;
+ }
+
+ return 0;
+
+out_free_rtg:
+ kmem_free(rtg);
+out_unwind_new_rtgs:
+ /* unwind any prior newly initialized rtgs */
+ for (index = first_initialised; index < rgcount; index++) {
+ rtg = radix_tree_delete(&mp->m_rtgroup_tree, index);
+ if (!rtg)
+ break;
+ kmem_free(rtg);
+ }
+ return error;
+}
+
+STATIC void
+__xfs_free_rtgroups(
+ struct rcu_head *head)
+{
+ struct xfs_rtgroup *rtg;
+
+ rtg = container_of(head, struct xfs_rtgroup, rcu_head);
+ kmem_free(rtg);
+}
+
+/*
+ * Free up the rtgroup resources associated with the mount structure.
+ */
+void
+xfs_free_rtgroups(
+ struct xfs_mount *mp)
+{
+ struct xfs_rtgroup *rtg;
+ xfs_rgnumber_t rgno;
+
+ if (!xfs_has_rtgroups(mp))
+ return;
+
+ for (rgno = 0; rgno < mp->m_sb.sb_rgcount; rgno++) {
+ spin_lock(&mp->m_rtgroup_lock);
+ rtg = radix_tree_delete(&mp->m_rtgroup_tree, rgno);
+ spin_unlock(&mp->m_rtgroup_lock);
+ ASSERT(rtg);
+ XFS_IS_CORRUPT(rtg->rtg_mount, atomic_read(&rtg->rtg_ref) != 0);
+
+ call_rcu(&rtg->rcu_head, __xfs_free_rtgroups);
+ }
+}
+
+/* Find the size of the rtgroup, in blocks. */
+static xfs_rgblock_t
+__xfs_rtgroup_block_count(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno,
+ xfs_rgnumber_t rgcount,
+ xfs_rfsblock_t rblocks)
+{
+ ASSERT(rgno < rgcount);
+
+ if (rgno < rgcount - 1)
+ return mp->m_sb.sb_rgblocks;
+ return xfs_rtb_rounddown_rtx(mp,
+ rblocks - (rgno * mp->m_sb.sb_rgblocks));
+}
+
+/* Compute the number of blocks in this realtime group. */
+xfs_rgblock_t
+xfs_rtgroup_block_count(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ return __xfs_rtgroup_block_count(mp, rgno, mp->m_sb.sb_rgcount,
+ mp->m_sb.sb_rblocks);
+}
diff --git a/fs/xfs/libxfs/xfs_rtgroup.h b/fs/xfs/libxfs/xfs_rtgroup.h
new file mode 100644
index 000000000000..f414218a66f2
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_rtgroup.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2022 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@xxxxxxxxxx>
+ */
+#ifndef __LIBXFS_RTGROUP_H
+#define __LIBXFS_RTGROUP_H 1
+
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Realtime group incore structure, similar to the per-AG structure.
+ */
+struct xfs_rtgroup {
+ struct xfs_mount *rtg_mount;
+ xfs_rgnumber_t rtg_rgno;
+ atomic_t rtg_ref;
+
+ /* for rcu-safe freeing */
+ struct rcu_head rcu_head;
+
+ /* Number of blocks in this group */
+ xfs_rgblock_t rtg_blockcount;
+
+#ifdef __KERNEL__
+ /* -- kernel only structures below this line -- */
+ spinlock_t rtg_state_lock;
+#endif /* __KERNEL__ */
+};
+
+#ifdef CONFIG_XFS_RT
+struct xfs_rtgroup *xfs_rtgroup_get(struct xfs_mount *mp, xfs_rgnumber_t rgno);
+struct xfs_rtgroup *xfs_rtgroup_bump(struct xfs_rtgroup *rtg);
+void xfs_rtgroup_put(struct xfs_rtgroup *rtg);
+int xfs_initialize_rtgroups(struct xfs_mount *mp, xfs_rgnumber_t rgcount);
+void xfs_free_rtgroups(struct xfs_mount *mp);
+#else
+static inline struct xfs_rtgroup *
+xfs_rtgroup_get(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ return NULL;
+}
+static inline struct xfs_rtgroup *xfs_rtgroup_bump(struct xfs_rtgroup *rtg)
+{
+ ASSERT(rtg == NULL);
+ return NULL;
+}
+# define xfs_rtgroup_put(rtg) ((void)0)
+# define xfs_initialize_rtgroups(mp, rgcount) (0)
+# define xfs_free_rtgroups(mp) ((void)0)
+#endif /* CONFIG_XFS_RT */
+
+/*
+ * rt group iteration APIs
+ */
+static inline struct xfs_rtgroup *
+xfs_rtgroup_next(
+ struct xfs_rtgroup *rtg,
+ xfs_rgnumber_t *rgno,
+ xfs_rgnumber_t end_rgno)
+{
+ struct xfs_mount *mp = rtg->rtg_mount;
+
+ *rgno = rtg->rtg_rgno + 1;
+ xfs_rtgroup_put(rtg);
+ if (*rgno > end_rgno)
+ return NULL;
+ return xfs_rtgroup_get(mp, *rgno);
+}
+
+#define for_each_rtgroup_range(mp, rgno, end_rgno, rtg) \
+ for ((rtg) = xfs_rtgroup_get((mp), (rgno)); \
+ (rtg) != NULL; \
+ (rtg) = xfs_rtgroup_next((rtg), &(rgno), (end_rgno)))
+
+#define for_each_rtgroup_from(mp, rgno, rtg) \
+ for_each_rtgroup_range((mp), (rgno), (mp)->m_sb.sb_rgcount - 1, (rtg))
+
+
+#define for_each_rtgroup(mp, rgno, rtg) \
+ (rgno) = 0; \
+ for_each_rtgroup_from((mp), (rgno), (rtg))
+
+static inline bool
+xfs_verify_rgbno(
+ struct xfs_rtgroup *rtg,
+ xfs_rgblock_t rgbno)
+{
+ if (rgbno >= rtg->rtg_blockcount)
+ return false;
+ if (rgbno < rtg->rtg_mount->m_sb.sb_rextsize)
+ return false;
+ return true;
+}
+
+static inline bool
+xfs_verify_rgbext(
+ struct xfs_rtgroup *rtg,
+ xfs_rgblock_t rgbno,
+ xfs_rgblock_t len)
+{
+ if (rgbno + len <= rgbno)
+ return false;
+
+ if (!xfs_verify_rgbno(rtg, rgbno))
+ return false;
+
+ return xfs_verify_rgbno(rtg, rgbno + len - 1);
+}
+
+#ifdef CONFIG_XFS_RT
+xfs_rgblock_t xfs_rtgroup_block_count(struct xfs_mount *mp,
+ xfs_rgnumber_t rgno);
+#else
+# define xfs_rtgroup_block_count(mp, rgno) (0)
+#endif /* CONFIG_XFS_RT */
+
+#endif /* __LIBXFS_RTGROUP_H */
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index 83930abf935f..48cfb9c8296b 100644
--- a/fs/xfs/libxfs/xfs_sb.c
+++ b/fs/xfs/libxfs/xfs_sb.c
@@ -641,6 +641,9 @@ __xfs_sb_from_disk(
to->sb_gquotino = NULLFSINO;
to->sb_pquotino = NULLFSINO;
}
+
+ to->sb_rgcount = 0;
+ to->sb_rgblocks = 0;
}
void
@@ -954,6 +957,8 @@ xfs_sb_mount_common(
mp->m_blockwmask = mp->m_blockwsize - 1;
mp->m_rtxblklog = log2_if_power2(sbp->sb_rextsize);
mp->m_rtxblkmask = mask64_if_power2(sbp->sb_rextsize);
+ mp->m_rgblklog = 0;
+ mp->m_rgblkmask = 0;
mp->m_alloc_mxr[0] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 1);
mp->m_alloc_mxr[1] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 0);
diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h
index f4615c5be34f..c27c84561b5e 100644
--- a/fs/xfs/libxfs/xfs_types.h
+++ b/fs/xfs/libxfs/xfs_types.h
@@ -9,10 +9,12 @@
typedef uint32_t prid_t; /* project ID */
typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
+typedef uint32_t xfs_rgblock_t; /* blockno in realtime group */
typedef uint32_t xfs_agino_t; /* inode # within allocation grp */
typedef uint32_t xfs_extlen_t; /* extent length in blocks */
typedef uint32_t xfs_rtxlen_t; /* file extent length in rtextents */
typedef uint32_t xfs_agnumber_t; /* allocation group number */
+typedef uint32_t xfs_rgnumber_t; /* realtime group number */
typedef uint64_t xfs_extnum_t; /* # of extents in a file */
typedef uint32_t xfs_aextnum_t; /* # extents in an attribute fork */
typedef int64_t xfs_fsize_t; /* bytes in a file */
@@ -54,7 +56,9 @@ typedef void * xfs_failaddr_t;
#define NULLRTEXTNO ((xfs_rtxnum_t)-1)
#define NULLAGBLOCK ((xfs_agblock_t)-1)
+#define NULLRGBLOCK ((xfs_rgblock_t)-1)
#define NULLAGNUMBER ((xfs_agnumber_t)-1)
+#define NULLRGNUMBER ((xfs_rgnumber_t)-1)
#define NULLCOMMITLSN ((xfs_lsn_t)-1)
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 006ceff1959d..8e6da3f34585 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -28,6 +28,7 @@
#include "xfs_ag.h"
#include "xfs_quota.h"
#include "xfs_reflink.h"
+#include "xfs_rtgroup.h"
#define BLK_AVG(blk1, blk2) ((blk1+blk2) >> 1)
@@ -3341,6 +3342,11 @@ xlog_do_recover(
xfs_warn(mp, "Failed post-recovery per-ag init: %d", error);
return error;
}
+ error = xfs_initialize_rtgroups(mp, sbp->sb_rgcount);
+ if (error) {
+ xfs_warn(mp, "Failed post-recovery rtgroup init: %d", error);
+ return error;
+ }
mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
/* Normal transactions can now occur */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 3957c60d5d07..bcfeaaf11536 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -35,6 +35,7 @@
#include "xfs_trace.h"
#include "xfs_ag.h"
#include "xfs_imeta.h"
+#include "xfs_rtgroup.h"
static DEFINE_MUTEX(xfs_uuid_table_mutex);
static int xfs_uuid_table_size;
@@ -830,10 +831,16 @@ xfs_mountfs(
goto out_free_dir;
}
+ error = xfs_initialize_rtgroups(mp, sbp->sb_rgcount);
+ if (error) {
+ xfs_warn(mp, "Failed rtgroup init: %d", error);
+ goto out_free_perag;
+ }
+
if (XFS_IS_CORRUPT(mp, !sbp->sb_logblocks)) {
xfs_warn(mp, "no log defined");
error = -EFSCORRUPTED;
- goto out_free_perag;
+ goto out_free_rtgroup;
}
error = xfs_inodegc_register_shrinker(mp);
@@ -1058,6 +1065,8 @@ xfs_mountfs(
if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
xfs_buftarg_drain(mp->m_logdev_targp);
xfs_buftarg_drain(mp->m_ddev_targp);
+ out_free_rtgroup:
+ xfs_free_rtgroups(mp);
out_free_perag:
xfs_free_perag(mp);
out_free_dir:
@@ -1138,6 +1147,7 @@ xfs_unmountfs(
xfs_errortag_clearall(mp);
#endif
unregister_shrinker(&mp->m_inodegc_shrinker);
+ xfs_free_rtgroups(mp);
xfs_free_perag(mp);
xfs_errortag_del(mp);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index bad926f3e102..674938008a97 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -119,6 +119,7 @@ typedef struct xfs_mount {
uint8_t m_agno_log; /* log #ag's */
uint8_t m_sectbb_log; /* sectlog - BBSHIFT */
int8_t m_rtxblklog; /* log2 of rextsize, if possible */
+ int8_t m_rgblklog; /* log2 of rt group sz if possible */
uint m_blockmask; /* sb_blocksize-1 */
uint m_blockwsize; /* sb_blocksize in words */
uint m_blockwmask; /* blockwsize-1 */
@@ -153,6 +154,7 @@ typedef struct xfs_mount {
uint64_t m_low_space[XFS_LOWSP_MAX];
uint64_t m_low_rtexts[XFS_LOWSP_MAX];
uint64_t m_rtxblkmask; /* rt extent block mask */
+ uint64_t m_rgblkmask; /* rt group block mask */
struct xfs_ino_geometry m_ino_geo; /* inode geometry */
struct xfs_trans_resv m_resv; /* precomputed res values */
/* low free space thresholds */
@@ -201,6 +203,8 @@ typedef struct xfs_mount {
*/
atomic64_t m_allocbt_blks;
+ struct radix_tree_root m_rtgroup_tree; /* per-rt group info */
+ spinlock_t m_rtgroup_lock; /* lock for m_rtgroup_tree */
struct radix_tree_root m_perag_tree; /* per-ag accounting info */
spinlock_t m_perag_lock; /* lock for m_perag_tree */
uint64_t m_resblks; /* total reserved blocks */
@@ -285,6 +289,7 @@ typedef struct xfs_mount {
#define XFS_FEAT_NEEDSREPAIR (1ULL << 25) /* needs xfs_repair */
#define XFS_FEAT_NREXT64 (1ULL << 26) /* large extent counters */
#define XFS_FEAT_METADIR (1ULL << 27) /* metadata directory tree */
+#define XFS_FEAT_RTGROUPS (1ULL << 28) /* realtime groups */
/* Mount features */
#define XFS_FEAT_NOATTR2 (1ULL << 48) /* disable attr2 creation */
@@ -349,6 +354,7 @@ __XFS_HAS_FEAT(bigtime, BIGTIME)
__XFS_HAS_FEAT(needsrepair, NEEDSREPAIR)
__XFS_HAS_FEAT(large_extent_counts, NREXT64)
__XFS_HAS_FEAT(metadir, METADIR)
+__XFS_HAS_FEAT(rtgroups, RTGROUPS)
/*
* Mount features
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index c131738efd0f..3b13352cfbfc 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -25,6 +25,7 @@
#include "xfs_da_format.h"
#include "xfs_imeta.h"
#include "xfs_rtbitmap.h"
+#include "xfs_rtgroup.h"
/*
* Realtime metadata files are not quite regular files because userspace can't
@@ -1409,10 +1410,12 @@ xfs_rtmount_iread_extents(
*/
int /* error */
xfs_rtmount_inodes(
- xfs_mount_t *mp) /* file system mount structure */
+ struct xfs_mount *mp) /* file system mount structure */
{
- int error; /* error return value */
- xfs_sb_t *sbp;
+ struct xfs_sb *sbp;
+ struct xfs_rtgroup *rtg;
+ xfs_rgnumber_t rgno;
+ int error; /* error return value */
sbp = &mp->m_sb;
error = xfs_rt_iget(mp, mp->m_sb.sb_rbmino, &xfs_rbmip_key,
@@ -1439,6 +1442,11 @@ xfs_rtmount_inodes(
if (error)
goto out_rele_summary;
+ for_each_rtgroup(mp, rgno, rtg) {
+ rtg->rtg_blockcount = xfs_rtgroup_block_count(mp,
+ rtg->rtg_rgno);
+ }
+
xfs_alloc_rsum_cache(mp, sbp->sb_rbmblocks);
return 0;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 19a22f9225e4..737c51333d09 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1932,6 +1932,8 @@ static int xfs_init_fs_context(
spin_lock_init(&mp->m_agirotor_lock);
INIT_RADIX_TREE(&mp->m_perag_tree, GFP_ATOMIC);
spin_lock_init(&mp->m_perag_lock);
+ INIT_RADIX_TREE(&mp->m_rtgroup_tree, GFP_ATOMIC);
+ spin_lock_init(&mp->m_rtgroup_lock);
mutex_init(&mp->m_growlock);
INIT_WORK(&mp->m_flush_inodes_work, xfs_flush_inodes_worker);
INIT_DELAYED_WORK(&mp->m_reclaim_work, xfs_reclaim_worker);
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index b92efe4eaeae..f72f694b4656 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -206,6 +206,40 @@ DEFINE_PERAG_REF_EVENT(xfs_perag_put);
DEFINE_PERAG_REF_EVENT(xfs_perag_set_inode_tag);
DEFINE_PERAG_REF_EVENT(xfs_perag_clear_inode_tag);
+#ifdef CONFIG_XFS_RT
+DECLARE_EVENT_CLASS(xfs_rtgroup_class,
+ TP_PROTO(struct xfs_mount *mp, xfs_rgnumber_t rgno, int refcount,
+ unsigned long caller_ip),
+ TP_ARGS(mp, rgno, refcount, caller_ip),
+ TP_STRUCT__entry(
+ __field(dev_t, dev)
+ __field(xfs_rgnumber_t, rgno)
+ __field(int, refcount)
+ __field(unsigned long, caller_ip)
+ ),
+ TP_fast_assign(
+ __entry->dev = mp->m_super->s_dev;
+ __entry->rgno = rgno;
+ __entry->refcount = refcount;
+ __entry->caller_ip = caller_ip;
+ ),
+ TP_printk("dev %d:%d rgno 0x%x refcount %d caller %pS",
+ MAJOR(__entry->dev), MINOR(__entry->dev),
+ __entry->rgno,
+ __entry->refcount,
+ (char *)__entry->caller_ip)
+);
+
+#define DEFINE_RTGROUP_REF_EVENT(name) \
+DEFINE_EVENT(xfs_rtgroup_class, name, \
+ TP_PROTO(struct xfs_mount *mp, xfs_rgnumber_t rgno, int refcount, \
+ unsigned long caller_ip), \
+ TP_ARGS(mp, rgno, refcount, caller_ip))
+DEFINE_RTGROUP_REF_EVENT(xfs_rtgroup_get);
+DEFINE_RTGROUP_REF_EVENT(xfs_rtgroup_bump);
+DEFINE_RTGROUP_REF_EVENT(xfs_rtgroup_put);
+#endif /* CONFIG_XFS_RT */
+
TRACE_EVENT(xfs_inodegc_worker,
TP_PROTO(struct xfs_mount *mp, unsigned int shrinker_hits),
TP_ARGS(mp, shrinker_hits),
