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