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fusefs: don't allow truncating irregular files on an read-only mount

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The readonly mount check had a special case allowing the sizes of files to
be changed if they weren't regular files.  I don't know why.  Neither UFS,
ZFS, nor ext2 have such a special case, and I don't know when you would ever
change the size of a non-regular file anyway.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Alan Somers 2019-05-06 15:20:18 +00:00
parent e5ff3a7e28
commit ac0a68e9cd
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/projects/fuse2/; revision=347184
1 changed files with 1 additions and 1 deletions
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2
sys/fs/fuse/fuse_vnops.c
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@ -1625,7 +1625,7 @@ fuse_vnop_setattr(struct vop_setattr_args *ap)
err = EISDIR;
goto out;
}
if (vfs_isrdonly(vnode_mount(vp)) && (fsai->valid & ~FATTR_SIZE || vtyp == VREG)) {
if (vfs_isrdonly(vnode_mount(vp))) {
err = EROFS;
goto out;
}