Minor cleanup. If we are doing a mount update, and we pass in
an "export" flag indicating that we are trying to NFS export the filesystem, and the MSDOSFS_LARGEFS flag is set on the filesystem, then deny the mount update and export request. Otherwise, let the full mount update proceed normally. MSDOSFS_LARGES and NFS don't mix because of the way inodes are calculated for MSDOSFS_LARGEFS. MFC after: 3 days
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=165022
@ -262,11 +262,15 @@ msdosfs_mount(struct mount *mp, struct thread *td)
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pmp = VFSTOMSDOSFS(mp);
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if (vfs_flagopt(mp->mnt_optnew, "export", NULL, 0)) {
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/* Process export requests. */
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if ((pmp->pm_flags & MSDOSFS_LARGEFS) != 0)
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/*
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* Forbid export requests if filesystem has
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* MSDOSFS_LARGEFS flag set.
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*/
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if ((pmp->pm_flags & MSDOSFS_LARGEFS) != 0) {
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vfs_mount_error(mp,
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"MSDOSFS_LARGEFS flag set, cannot export");
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return (EOPNOTSUPP);
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else
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return (0);
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}
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}
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if (!(pmp->pm_flags & MSDOSFSMNT_RONLY) &&
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vfs_flagopt(mp->mnt_optnew, "ro", NULL, 0)) {
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