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authorAlberto Bertogli <albertito@gmail.com>2007-05-08 00:23:16 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 11:14:57 -0700
commit5822b7faca709c03a59c2929005bfe9caffe6592 (patch)
tree4de7b322cfd25794a79cb46b0feab1113785f7a8 /fs/hostfs/hostfs_kern.c
parent0e6b9c98be1b517bf99a21d8a7036a8a21e47dd1 (diff)
downloadop-kernel-dev-5822b7faca709c03a59c2929005bfe9caffe6592.zip
op-kernel-dev-5822b7faca709c03a59c2929005bfe9caffe6592.tar.gz
uml: make hostfs_setattr() support operations on unlinked open files
This patch allows hostfs_setattr() to work on unlinked open files by calling set_attr() (the userspace part) with the inode's fd. Without this, applications that depend on doing attribute changes to unlinked open files will fail. It works by using the fd versions instead of the path ones (for example fchmod() instead of chmod(), fchown() instead of chown()) when an fd is available. Signed-off-by: Alberto Bertogli <albertito@gmail.com> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hostfs/hostfs_kern.c')
-rw-r--r--fs/hostfs/hostfs_kern.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index fd301a9..4e8bb2f 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -147,7 +147,7 @@ static int read_name(struct inode *ino, char *name)
err = stat_file(name, &i_ino, &i_mode, &i_nlink, &ino->i_uid,
&ino->i_gid, &i_size, &ino->i_atime, &ino->i_mtime,
- &ino->i_ctime, &i_blksize, &i_blocks);
+ &ino->i_ctime, &i_blksize, &i_blocks, -1);
if(err)
return(err);
@@ -820,6 +820,8 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
char *name;
int err;
+ int fd = HOSTFS_I(dentry->d_inode)->fd;
+
err = inode_change_ok(dentry->d_inode, attr);
if (err)
return err;
@@ -864,7 +866,7 @@ int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
}
name = dentry_name(dentry, 0);
if(name == NULL) return(-ENOMEM);
- err = set_attr(name, &attrs);
+ err = set_attr(name, &attrs, fd);
kfree(name);
if(err)
return(err);
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