# xfs_rtbitmap is shared with libxfs
xfs-$(CONFIG_XFS_RT) += $(addprefix libxfs/, \
xfs_rtbitmap.o \
+ xfs_rtgroup.o \
)
# highlevel code
xfs_ino_t sb_metadirino; /* metadata directory tree root */
+ xfs_rgnumber_t sb_rgcount; /* number of realtime groups */
+ xfs_rtxlen_t sb_rgextents; /* size of a realtime group in rtx */
+
/* must be padded to 64 bit alignment */
} xfs_sb_t;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022-2024 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#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"
+
+int
+xfs_rtgroup_alloc(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno,
+ xfs_rgnumber_t rgcount,
+ xfs_rtbxlen_t rextents)
+{
+ struct xfs_rtgroup *rtg;
+ int error;
+
+ rtg = kzalloc(sizeof(struct xfs_rtgroup), GFP_KERNEL);
+ if (!rtg)
+ return -ENOMEM;
+
+ error = xfs_group_insert(mp, rtg_group(rtg), rgno, XG_TYPE_RTG);
+ if (error)
+ goto out_free_rtg;
+ return 0;
+
+out_free_rtg:
+ kfree(rtg);
+ return error;
+}
+
+void
+xfs_rtgroup_free(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ xfs_group_free(mp, rgno, XG_TYPE_RTG, NULL);
+}
+
+/* Free a range of incore rtgroup objects. */
+void
+xfs_free_rtgroups(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t first_rgno,
+ xfs_rgnumber_t end_rgno)
+{
+ xfs_rgnumber_t rgno;
+
+ for (rgno = first_rgno; rgno < end_rgno; rgno++)
+ xfs_rtgroup_free(mp, rgno);
+}
+
+/* Initialize some range of incore rtgroup objects. */
+int
+xfs_initialize_rtgroups(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t first_rgno,
+ xfs_rgnumber_t end_rgno,
+ xfs_rtbxlen_t rextents)
+{
+ xfs_rgnumber_t index;
+ int error;
+
+ if (first_rgno >= end_rgno)
+ return 0;
+
+ for (index = first_rgno; index < end_rgno; index++) {
+ error = xfs_rtgroup_alloc(mp, index, end_rgno, rextents);
+ if (error)
+ goto out_unwind_new_rtgs;
+ }
+
+ return 0;
+
+out_unwind_new_rtgs:
+ xfs_free_rtgroups(mp, first_rgno, index);
+ return error;
+}
+
+/* Compute the number of rt extents in this realtime group. */
+xfs_rtxnum_t
+__xfs_rtgroup_extents(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno,
+ xfs_rgnumber_t rgcount,
+ xfs_rtbxlen_t rextents)
+{
+ ASSERT(rgno < rgcount);
+ if (rgno == rgcount - 1)
+ return rextents - ((xfs_rtxnum_t)rgno * mp->m_sb.sb_rgextents);
+
+ ASSERT(xfs_has_rtgroups(mp));
+ return mp->m_sb.sb_rgextents;
+}
+
+xfs_rtxnum_t
+xfs_rtgroup_extents(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ return __xfs_rtgroup_extents(mp, rgno, mp->m_sb.sb_rgcount,
+ mp->m_sb.sb_rextents);
+}
+
+/*
+ * Update the rt extent count of the previous tail rtgroup if it changed during
+ * recovery (i.e. recovery of a growfs).
+ */
+int
+xfs_update_last_rtgroup_size(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t prev_rgcount)
+{
+ struct xfs_rtgroup *rtg;
+
+ ASSERT(prev_rgcount > 0);
+
+ rtg = xfs_rtgroup_grab(mp, prev_rgcount - 1);
+ if (!rtg)
+ return -EFSCORRUPTED;
+ rtg->rtg_extents = __xfs_rtgroup_extents(mp, prev_rgcount - 1,
+ mp->m_sb.sb_rgcount, mp->m_sb.sb_rextents);
+ xfs_rtgroup_rele(rtg);
+ return 0;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (c) 2022-2024 Oracle. All Rights Reserved.
+ * Author: Darrick J. Wong <djwong@kernel.org>
+ */
+#ifndef __LIBXFS_RTGROUP_H
+#define __LIBXFS_RTGROUP_H 1
+
+#include "xfs_group.h"
+
+struct xfs_mount;
+struct xfs_trans;
+
+/*
+ * Realtime group incore structure, similar to the per-AG structure.
+ */
+struct xfs_rtgroup {
+ struct xfs_group rtg_group;
+
+ /* Number of blocks in this group */
+ xfs_rtxnum_t rtg_extents;
+};
+
+static inline struct xfs_rtgroup *to_rtg(struct xfs_group *xg)
+{
+ return container_of(xg, struct xfs_rtgroup, rtg_group);
+}
+
+static inline struct xfs_group *rtg_group(struct xfs_rtgroup *rtg)
+{
+ return &rtg->rtg_group;
+}
+
+static inline struct xfs_mount *rtg_mount(const struct xfs_rtgroup *rtg)
+{
+ return rtg->rtg_group.xg_mount;
+}
+
+static inline xfs_rgnumber_t rtg_rgno(const struct xfs_rtgroup *rtg)
+{
+ return rtg->rtg_group.xg_gno;
+}
+
+/* Passive rtgroup references */
+static inline struct xfs_rtgroup *
+xfs_rtgroup_get(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ return to_rtg(xfs_group_get(mp, rgno, XG_TYPE_RTG));
+}
+
+static inline struct xfs_rtgroup *
+xfs_rtgroup_hold(
+ struct xfs_rtgroup *rtg)
+{
+ return to_rtg(xfs_group_hold(rtg_group(rtg)));
+}
+
+static inline void
+xfs_rtgroup_put(
+ struct xfs_rtgroup *rtg)
+{
+ xfs_group_put(rtg_group(rtg));
+}
+
+/* Active rtgroup references */
+static inline struct xfs_rtgroup *
+xfs_rtgroup_grab(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ return to_rtg(xfs_group_grab(mp, rgno, XG_TYPE_RTG));
+}
+
+static inline void
+xfs_rtgroup_rele(
+ struct xfs_rtgroup *rtg)
+{
+ xfs_group_rele(rtg_group(rtg));
+}
+
+static inline struct xfs_rtgroup *
+xfs_rtgroup_next_range(
+ struct xfs_mount *mp,
+ struct xfs_rtgroup *rtg,
+ xfs_rgnumber_t start_rgno,
+ xfs_rgnumber_t end_rgno)
+{
+ return to_rtg(xfs_group_next_range(mp, rtg ? rtg_group(rtg) : NULL,
+ start_rgno, end_rgno, XG_TYPE_RTG));
+}
+
+static inline struct xfs_rtgroup *
+xfs_rtgroup_next(
+ struct xfs_mount *mp,
+ struct xfs_rtgroup *rtg)
+{
+ return xfs_rtgroup_next_range(mp, rtg, 0, mp->m_sb.sb_rgcount - 1);
+}
+
+static inline xfs_rtblock_t
+xfs_rgno_start_rtb(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno)
+{
+ if (mp->m_rgblklog >= 0)
+ return ((xfs_rtblock_t)rgno << mp->m_rgblklog);
+ return ((xfs_rtblock_t)rgno * mp->m_rgblocks);
+}
+
+static inline xfs_rtblock_t
+__xfs_rgbno_to_rtb(
+ struct xfs_mount *mp,
+ xfs_rgnumber_t rgno,
+ xfs_rgblock_t rgbno)
+{
+ return xfs_rgno_start_rtb(mp, rgno) + rgbno;
+}
+
+static inline xfs_rtblock_t
+xfs_rgbno_to_rtb(
+ struct xfs_rtgroup *rtg,
+ xfs_rgblock_t rgbno)
+{
+ return __xfs_rgbno_to_rtb(rtg_mount(rtg), rtg_rgno(rtg), rgbno);
+}
+
+static inline xfs_rgnumber_t
+xfs_rtb_to_rgno(
+ struct xfs_mount *mp,
+ xfs_rtblock_t rtbno)
+{
+ if (!xfs_has_rtgroups(mp))
+ return 0;
+
+ if (mp->m_rgblklog >= 0)
+ return rtbno >> mp->m_rgblklog;
+
+ return div_u64(rtbno, mp->m_rgblocks);
+}
+
+static inline uint64_t
+__xfs_rtb_to_rgbno(
+ struct xfs_mount *mp,
+ xfs_rtblock_t rtbno)
+{
+ uint32_t rem;
+
+ if (!xfs_has_rtgroups(mp))
+ return rtbno;
+
+ if (mp->m_rgblklog >= 0)
+ return rtbno & mp->m_rgblkmask;
+
+ div_u64_rem(rtbno, mp->m_rgblocks, &rem);
+ return rem;
+}
+
+static inline xfs_rgblock_t
+xfs_rtb_to_rgbno(
+ struct xfs_mount *mp,
+ xfs_rtblock_t rtbno)
+{
+ return __xfs_rtb_to_rgbno(mp, rtbno);
+}
+
+static inline xfs_daddr_t
+xfs_rtb_to_daddr(
+ struct xfs_mount *mp,
+ xfs_rtblock_t rtbno)
+{
+ return rtbno << mp->m_blkbb_log;
+}
+
+static inline xfs_rtblock_t
+xfs_daddr_to_rtb(
+ struct xfs_mount *mp,
+ xfs_daddr_t daddr)
+{
+ return daddr >> mp->m_blkbb_log;
+}
+
+#ifdef CONFIG_XFS_RT
+int xfs_rtgroup_alloc(struct xfs_mount *mp, xfs_rgnumber_t rgno,
+ xfs_rgnumber_t rgcount, xfs_rtbxlen_t rextents);
+void xfs_rtgroup_free(struct xfs_mount *mp, xfs_rgnumber_t rgno);
+
+void xfs_free_rtgroups(struct xfs_mount *mp, xfs_rgnumber_t first_rgno,
+ xfs_rgnumber_t end_rgno);
+int xfs_initialize_rtgroups(struct xfs_mount *mp, xfs_rgnumber_t first_rgno,
+ xfs_rgnumber_t end_rgno, xfs_rtbxlen_t rextents);
+
+xfs_rtxnum_t __xfs_rtgroup_extents(struct xfs_mount *mp, xfs_rgnumber_t rgno,
+ xfs_rgnumber_t rgcount, xfs_rtbxlen_t rextents);
+xfs_rtxnum_t xfs_rtgroup_extents(struct xfs_mount *mp, xfs_rgnumber_t rgno);
+
+int xfs_update_last_rtgroup_size(struct xfs_mount *mp,
+ xfs_rgnumber_t prev_rgcount);
+#else
+static inline void xfs_free_rtgroups(struct xfs_mount *mp,
+ xfs_rgnumber_t first_rgno, xfs_rgnumber_t end_rgno)
+{
+}
+
+static inline int xfs_initialize_rtgroups(struct xfs_mount *mp,
+ xfs_rgnumber_t first_rgno, xfs_rgnumber_t end_rgno,
+ xfs_rtbxlen_t rextents)
+{
+ return 0;
+}
+
+# define xfs_rtgroup_extents(mp, rgno) (0)
+# define xfs_update_last_rtgroup_size(mp, rgno) (-EOPNOTSUPP)
+#endif /* CONFIG_XFS_RT */
+
+#endif /* __LIBXFS_RTGROUP_H */
to->sb_metadirino = be64_to_cpu(from->sb_metadirino);
else
to->sb_metadirino = NULLFSINO;
+
+ to->sb_rgcount = 1;
+ to->sb_rgextents = 0;
}
void
struct xfs_mount *mp,
struct xfs_sb *sbp)
{
+ struct xfs_groups *rgs = &mp->m_groups[XG_TYPE_RTG];
+
mp->m_rtxblklog = log2_if_power2(sbp->sb_rextsize);
mp->m_rtxblkmask = mask64_if_power2(sbp->sb_rextsize);
+
+ mp->m_rgblocks = 0;
+ mp->m_rgblklog = 0;
+ mp->m_rgblkmask = (uint64_t)-1;
+
+ rgs->blocks = 0;
+ rgs->blklog = 0;
+ rgs->blkmask = (uint64_t)-1;
}
/*
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 */
#define NULLFILEOFF ((xfs_fileoff_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)
enum xfs_group_type {
XG_TYPE_AG,
+ XG_TYPE_RTG,
XG_TYPE_MAX,
} __packed;
#define XG_TYPE_STRINGS \
- { XG_TYPE_AG, "ag" }
+ { XG_TYPE_AG, "ag" }, \
+ { XG_TYPE_RTG, "rtg" }
/*
* Type verifier functions
#include "xfs_iomap.h"
#include "xfs_reflink.h"
#include "xfs_rtbitmap.h"
+#include "xfs_rtgroup.h"
/* Kernel only BMAP related definitions and functions */
xfs_fsb_to_db(struct xfs_inode *ip, xfs_fsblock_t fsb)
{
if (XFS_IS_REALTIME_INODE(ip))
- return XFS_FSB_TO_BB(ip->i_mount, fsb);
+ return xfs_rtb_to_daddr(ip->i_mount, fsb);
return XFS_FSB_TO_DADDR(ip->i_mount, fsb);
}
#include "xfs_alloc.h"
#include "xfs_ag.h"
#include "xfs_sb.h"
+#include "xfs_rtgroup.h"
/*
* This is the number of entries in the l_buf_cancel_table used during
{
struct xfs_dsb *dsb = bp->b_addr;
xfs_agnumber_t orig_agcount = mp->m_sb.sb_agcount;
+ xfs_rgnumber_t orig_rgcount = mp->m_sb.sb_rgcount;
int error;
xlog_recover_do_reg_buffer(mp, item, bp, buf_f, current_lsn);
xfs_alert(mp, "Shrinking AG count in log recovery not supported");
return -EFSCORRUPTED;
}
+ if (mp->m_sb.sb_rgcount < orig_rgcount) {
+ xfs_warn(mp,
+ "Shrinking rtgroup count in log recovery not supported");
+ return -EFSCORRUPTED;
+ }
/*
* If the last AG was grown or shrunk, we also need to update the
if (error)
return error;
+ /*
+ * If the last rtgroup was grown or shrunk, we also need to update the
+ * length in the in-core rtgroup structure and values depending on it.
+ * Ignore this on any filesystem with zero rtgroups.
+ */
+ if (orig_rgcount > 0) {
+ error = xfs_update_last_rtgroup_size(mp, orig_rgcount);
+ if (error)
+ return error;
+ }
+
/*
* Initialize the new perags, and also update various block and inode
* allocator setting based off the number of AGs or total blocks.
return error;
}
mp->m_alloc_set_aside = xfs_alloc_set_aside(mp);
+
+ error = xfs_initialize_rtgroups(mp, orig_rgcount, mp->m_sb.sb_rgcount,
+ mp->m_sb.sb_rextents);
+ if (error) {
+ xfs_warn(mp, "Failed recovery rtgroup init: %d", error);
+ return error;
+ }
return 0;
}
#include "xfs_alloc_btree.h"
#include "xfs_rtbitmap.h"
#include "xfs_ag.h"
+#include "xfs_rtgroup.h"
/* Convert an xfs_fsmap to an fsmap. */
static void
frec.start_daddr = info->end_daddr;
} else {
rtbno = xfs_rtx_to_rtb(mp, rec->ar_startext);
- frec.start_daddr = XFS_FSB_TO_BB(mp, rtbno);
+ frec.start_daddr = xfs_rtb_to_daddr(mp, rtbno);
}
rtbno = xfs_rtx_to_rtb(mp, rec->ar_extcount);
/* Adjust the low key if we are continuing from where we left off. */
if (keys[0].fmr_length > 0) {
- info->low_daddr = XFS_FSB_TO_BB(mp, start_rtb);
+ info->low_daddr = xfs_rtb_to_daddr(mp, start_rtb);
if (info->low_daddr >= eofs)
return 0;
}
#include "xfs_ag.h"
#include "xfs_rtbitmap.h"
#include "xfs_metafile.h"
+#include "xfs_rtgroup.h"
#include "scrub/stats.h"
static DEFINE_MUTEX(xfs_uuid_table_mutex);
goto out_free_dir;
}
+ error = xfs_initialize_rtgroups(mp, 0, sbp->sb_rgcount,
+ mp->m_sb.sb_rextents);
+ 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);
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, 0, mp->m_sb.sb_rgcount);
out_free_perag:
xfs_free_perag_range(mp, 0, mp->m_sb.sb_agcount);
out_free_dir:
xfs_errortag_clearall(mp);
#endif
shrinker_free(mp->m_inodegc_shrinker);
+ xfs_free_rtgroups(mp, 0, mp->m_sb.sb_rgcount);
xfs_free_perag_range(mp, 0, mp->m_sb.sb_agcount);
xfs_errortag_del(mp);
xfs_error_sysfs_del(mp);
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 */
int m_logbsize; /* size of each log buffer */
uint m_rsumlevels; /* rt summary levels */
xfs_filblks_t m_rsumblocks; /* size of rt summary, FSBs */
+ uint32_t m_rgblocks; /* size of rtgroup in rtblocks */
int m_fixedfsid[2]; /* unchanged for life of FS */
uint m_qflags; /* quota status flags */
uint64_t m_features; /* active filesystem features */
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 */
__XFS_HAS_FEAT(exchange_range, EXCHANGE_RANGE)
__XFS_HAS_FEAT(metadir, METADIR)
+static inline bool xfs_has_rtgroups(struct xfs_mount *mp)
+{
+ return false;
+}
+
+static inline bool xfs_has_rtsb(struct xfs_mount *mp)
+{
+ return false;
+}
+
/*
* Some features are always on for v5 file systems, allow the compiler to
* eliminiate dead code when building without v4 support.
#include "xfs_health.h"
#include "xfs_da_format.h"
#include "xfs_metafile.h"
+#include "xfs_rtgroup.h"
/*
* Return whether there are any free extents in the size range given
{
struct xfs_trans *tp;
struct xfs_sb *sbp = &mp->m_sb;
+ struct xfs_rtgroup *rtg = NULL;
int error;
error = xfs_trans_alloc_empty(mp, &tp);
if (error)
goto out_rele_summary;
+ while ((rtg = xfs_rtgroup_next(mp, rtg)))
+ rtg->rtg_extents = xfs_rtgroup_extents(mp, rtg_rgno(rtg));
+
error = xfs_alloc_rsum_cache(mp, sbp->sb_rbmblocks);
if (error)
goto out_rele_summary;
#include "xfs_refcount.h"
#include "xfs_metafile.h"
#include "xfs_metadir.h"
+#include "xfs_rtgroup.h"
/*
* We include this last to have the helpers above available for the trace
DEFINE_PERAG_REF_EVENT(xfs_reclaim_inodes_count);
TRACE_DEFINE_ENUM(XG_TYPE_AG);
+TRACE_DEFINE_ENUM(XG_TYPE_RTG);
DECLARE_EVENT_CLASS(xfs_group_class,
TP_PROTO(struct xfs_group *xg, unsigned long caller_ip),
projects / linux-2.6-microblaze.git / commitdiff