From: Christoph Hellwig <hch@lst.de>
Date: Mon, 14 Apr 2025 05:36:26 +0000 (+0200)
Subject: xfs_growfs: support internal RT devices
X-Git-Tag: v6.15.0~7
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fd4eb274c828604281c326aa1f104034e3f226b7;p=thirdparty%2Fxfsprogs-dev.git

xfs_growfs: support internal RT devices

Allow RT growfs when rtstart is set in the geomety, and adjust the
queried size for it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
---

diff --git a/growfs/xfs_growfs.c b/growfs/xfs_growfs.c
index 4b941403e..0d0b2ae3e 100644
--- a/growfs/xfs_growfs.c
+++ b/growfs/xfs_growfs.c
@@ -202,7 +202,7 @@ main(int argc, char **argv)
 			progname, fname);
 		exit(1);
 	}
-	if (rflag && !xi.rt.dev) {
+	if (rflag && (!xi.rt.dev && !geo.rtstart)) {
 		fprintf(stderr,
 			_("%s: failed to access realtime device for %s\n"),
 			progname, fname);
@@ -211,6 +211,13 @@ main(int argc, char **argv)
 
 	xfs_report_geom(&geo, datadev, logdev, rtdev);
 
+	if (geo.rtstart) {
+		xfs_daddr_t rtstart = geo.rtstart * (geo.blocksize / BBSIZE);
+
+		xi.rt.size = xi.data.size - rtstart;
+		xi.data.size = rtstart;
+	}
+
 	ddsize = xi.data.size;
 	dlsize = (xi.log.size ? xi.log.size :
 			geo.logblocks * (geo.blocksize / BBSIZE) );