mkfs: create the realtime rmap inode
Create a realtime rmapbt inode if we format the fs with realtime
and rmap.
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
diff --git a/libxfs/init.c b/libxfs/init.c
index 02a4cfd..f928056 100644
--- a/libxfs/init.c
+++ b/libxfs/init.c
@@ -312,13 +312,6 @@
return -1;
}
- if (xfs_has_rmapbt(mp)) {
- fprintf(stderr,
- _("%s: Reverse mapping btree not compatible with realtime device. Please try a newer xfsprogs.\n"),
- progname);
- return -1;
- }
-
if (mp->m_rtdev_targp->bt_bdev == 0 && !xfs_is_debugger(mp)) {
fprintf(stderr, _("%s: filesystem has a realtime subvolume\n"),
progname);
diff --git a/libxfs/libxfs_api_defs.h b/libxfs/libxfs_api_defs.h
index eb573eb..2a2eff4 100644
--- a/libxfs/libxfs_api_defs.h
+++ b/libxfs/libxfs_api_defs.h
@@ -224,6 +224,8 @@
#define xfs_metafile_iget libxfs_metafile_iget
#define xfs_trans_metafile_iget libxfs_trans_metafile_iget
+#define xfs_metafile_resv_free libxfs_metafile_resv_free
+#define xfs_metafile_resv_init libxfs_metafile_resv_init
#define xfs_metafile_set_iflag libxfs_metafile_set_iflag
#define xfs_metadir_cancel libxfs_metadir_cancel
#define xfs_metadir_commit libxfs_metadir_commit
@@ -318,11 +320,13 @@
#define xfs_rtgroup_get libxfs_rtgroup_get
#define xfs_rtgroup_put libxfs_rtgroup_put
#define xfs_rtrmapbt_calc_size libxfs_rtrmapbt_calc_size
+#define xfs_rtrmapbt_calc_reserves libxfs_rtrmapbt_calc_reserves
#define xfs_rtrmapbt_commit_staged_btree libxfs_rtrmapbt_commit_staged_btree
#define xfs_rtrmapbt_create libxfs_rtrmapbt_create
#define xfs_rtrmapbt_droot_maxrecs libxfs_rtrmapbt_droot_maxrecs
#define xfs_rtrmapbt_maxlevels_ondisk libxfs_rtrmapbt_maxlevels_ondisk
#define xfs_rtrmapbt_init_cursor libxfs_rtrmapbt_init_cursor
+#define xfs_rtrmapbt_init_rtsb libxfs_rtrmapbt_init_rtsb
#define xfs_rtrmapbt_maxrecs libxfs_rtrmapbt_maxrecs
#define xfs_rtrmapbt_mem_init libxfs_rtrmapbt_mem_init
#define xfs_rtrmapbt_mem_cursor libxfs_rtrmapbt_mem_cursor
diff --git a/mkfs/proto.c b/mkfs/proto.c
index a24d8e8..7f375a8 100644
--- a/mkfs/proto.c
+++ b/mkfs/proto.c
@@ -969,6 +969,28 @@
}
}
+static int
+init_rtrmap_for_rtsb(
+ struct xfs_rtgroup *rtg)
+{
+ struct xfs_mount *mp = rtg_mount(rtg);
+ struct xfs_trans *tp;
+ int error;
+
+ error = -libxfs_trans_alloc_inode(rtg->rtg_inodes[XFS_RTGI_RMAP],
+ &M_RES(mp)->tr_itruncate, 0, 0, false, &tp);
+ if (error)
+ return error;
+
+ error = -libxfs_rtrmapbt_init_rtsb(mp, rtg, tp);
+ if (error) {
+ libxfs_trans_cancel(tp);
+ return error;
+ }
+
+ return -libxfs_trans_commit(tp);
+}
+
static void
rtinit_groups(
struct xfs_mount *mp)
@@ -989,6 +1011,13 @@
error);
}
+ if (xfs_has_rtsb(mp) && xfs_has_rtrmapbt(mp) &&
+ rtg_rgno(rtg) == 0) {
+ error = init_rtrmap_for_rtsb(rtg);
+ if (error)
+ fail(_("rtrmap rtsb init failed"), error);
+ }
+
rtfreesp_init(rtg);
}
}
diff --git a/mkfs/xfs_mkfs.c b/mkfs/xfs_mkfs.c
index c5e6c76..4b4a029 100644
--- a/mkfs/xfs_mkfs.c
+++ b/mkfs/xfs_mkfs.c
@@ -2624,12 +2624,18 @@
}
cli->sb_feat.reflink = false;
- if (cli->sb_feat.rmapbt && cli_opt_set(&mopts, M_RMAPBT)) {
- fprintf(stderr,
-_("rmapbt not supported with realtime devices\n"));
- usage();
+ if (!cli->sb_feat.metadir && cli->sb_feat.rmapbt) {
+ if (cli_opt_set(&mopts, M_RMAPBT) &&
+ cli_opt_set(&mopts, M_METADIR)) {
+ fprintf(stderr,
+_("rmapbt not supported on realtime devices without metadir feature\n"));
+ usage();
+ } else if (cli_opt_set(&mopts, M_RMAPBT)) {
+ cli->sb_feat.metadir = true;
+ } else {
+ cli->sb_feat.rmapbt = false;
+ }
}
- cli->sb_feat.rmapbt = false;
}
if ((cli->fsx.fsx_xflags & FS_XFLAG_COWEXTSIZE) &&
@@ -4858,6 +4864,75 @@
libxfs_buf_relse(sb_bp);
}
+static inline void
+prealloc_fail(
+ struct xfs_mount *mp,
+ int error,
+ xfs_filblks_t ask,
+ const char *tag)
+{
+ if (error == ENOSPC)
+ fprintf(stderr,
+ _("%s: cannot handle expansion of %s; need %llu free blocks, have %llu\n"),
+ progname, tag, (unsigned long long)ask,
+ (unsigned long long)mp->m_sb.sb_fdblocks);
+ else
+ fprintf(stderr,
+ _("%s: error %d while checking free space for %s\n"),
+ progname, error, tag);
+ exit(1);
+}
+
+/*
+ * Make sure there's enough space on the data device to handle realtime
+ * metadata btree expansions.
+ */
+static void
+check_rt_meta_prealloc(
+ struct xfs_mount *mp)
+{
+ struct xfs_perag *pag = NULL;
+ struct xfs_rtgroup *rtg = NULL;
+ xfs_filblks_t ask;
+ int error;
+
+ /*
+ * First create all the per-AG reservations, since they take from the
+ * free block count. Each AG should start with enough free space for
+ * the per-AG reservation.
+ */
+ mp->m_finobt_nores = false;
+
+ while ((pag = xfs_perag_next(mp, pag))) {
+ error = -libxfs_ag_resv_init(pag, NULL);
+ if (error && error != ENOSPC) {
+ fprintf(stderr,
+ _("%s: error %d while checking AG free space for realtime metadata\n"),
+ progname, error);
+ exit(1);
+ }
+ }
+
+ /* Realtime metadata btree inode */
+ while ((rtg = xfs_rtgroup_next(mp, rtg))) {
+ ask = libxfs_rtrmapbt_calc_reserves(mp);
+ error = -libxfs_metafile_resv_init(
+ rtg->rtg_inodes[XFS_RTGI_RMAP], ask);
+ if (error)
+ prealloc_fail(mp, error, ask, _("realtime rmap btree"));
+ }
+
+ /* Unreserve the realtime metadata reservations. */
+ while ((rtg = xfs_rtgroup_next(mp, rtg)))
+ libxfs_metafile_resv_free(rtg->rtg_inodes[XFS_RTGI_RMAP]);
+
+ /* Unreserve the per-AG reservations. */
+ while ((pag = xfs_perag_next(mp, pag)))
+ libxfs_ag_resv_free(pag);
+
+ mp->m_finobt_nores = false;
+}
+
int
main(
int argc,
@@ -5194,6 +5269,9 @@
*/
check_root_ino(mp);
+ /* Make sure we can handle space preallocations of rt metadata btrees */
+ check_rt_meta_prealloc(mp);
+
/*
* Re-write multiple secondary superblocks with rootinode field set
*/
