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From e81cc68312e91ab7086188542f3377605bf144a8 Mon Sep 17 00:00:00 2001
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From: Andrey Albershteyn <aalbersh@redhat.com>
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Date: Mon, 25 Apr 2022 17:08:38 +0200
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Subject: libblkid: implement FSSIZE calculation for XFS
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The implementation is similar to one provided by statfs(2) + lsblk.
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Upstream: http://github.com/util-linux/util-linux/commit/d7ec8fe8e
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=2064810
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Signed-off-by: Andrey Albershteyn <aalbersh@redhat.com>
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---
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libblkid/src/superblocks/xfs.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/libblkid/src/superblocks/xfs.c b/libblkid/src/superblocks/xfs.c
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index d8c6fb6d4..444050f55 100644
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--- a/libblkid/src/superblocks/xfs.c
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+++ b/libblkid/src/superblocks/xfs.c
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@@ -158,6 +158,15 @@ static int xfs_verify_sb(struct xfs_super_block *ondisk)
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return 1;
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}
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+static uint64_t xfs_fssize(struct xfs_super_block *xs)
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+{
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+ uint32_t lsize = xs->sb_logstart ? xs->sb_logblocks : 0;
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+ uint64_t avail_blocks = be64_to_cpu(xs->sb_dblocks) - be32_to_cpu(lsize);
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+ uint64_t fssize = avail_blocks*be32_to_cpu(xs->sb_blocksize);
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+
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+ return fssize;
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+}
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+
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static int probe_xfs(blkid_probe pr, const struct blkid_idmag *mag)
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{
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struct xfs_super_block *xs;
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@@ -173,6 +182,7 @@ static int probe_xfs(blkid_probe pr, const struct blkid_idmag *mag)
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blkid_probe_set_label(pr, (unsigned char *) xs->sb_fname,
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sizeof(xs->sb_fname));
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blkid_probe_set_uuid(pr, xs->sb_uuid);
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+ blkid_probe_set_fssize(pr, xfs_fssize(xs));
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blkid_probe_set_block_size(pr, be16_to_cpu(xs->sb_sectsize));
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return 0;
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}
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--
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2.36.1
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