Hello,
On Wed, 2005-03-02 at 09:53, Andrew Morton wrote:
> AurÃlien Francillon <[EMAIL PROTECTED]> wrote:
> > [...]
> > cvs diff Makefile
> > cvs diff: cannot create read lock in repository
> > `/mnt/iseran/roca/cvsroot/ldpc': No such file or directory
> > cvs [diff aborted]: read lock failed - giving up
> >
> > but the file is created and i can "cat " it without problem ...
This fixes it:
Index: linux-2.6.11/fs/nfs/nfs3proc.c
===================================================================
--- linux-2.6.11.orig/fs/nfs/nfs3proc.c
+++ linux-2.6.11/fs/nfs/nfs3proc.c
@@ -423,6 +423,9 @@ exit:
if (!inode)
goto out;
status = nfs3_set_default_acl(dir, inode, mode);
+ if (status)
+ goto out;
+ return inode;
}
out:
return ERR_PTR(status);
I'll reply to this message with an updated patch:
Re: [nfsacl v2 15/16] ACL umask handling workaround in nfs client
Regards,
--
Andreas Gruenbacher <[EMAIL PROTECTED]>
SUSE Labs, SUSE LINUX GMBH
--- Begin Message ---
NFSv3 has no concept of a umask on the server side: The client applies
the umask locally, and sends the effective permissions to the server.
This behavior is wrong when files are created in a directory that has a
default ACL. In this case, the umask is supposed to be ignored, and
only the default ACL determines the file's effective permissions.
Usually its the server's task to conditionally apply the umask. But
since the server knows nothing about the umask, we have to do it on the
client side. This patch tries to fetch the parent directory's default
ACL before creating a new file, computes the appropriate create mode to
send to the server, and finally sets the new file's access and default
acl appropriately.
Many thanks to Buck Huppmann <[EMAIL PROTECTED]> for sending the initial
version of this patch, as well as for arguing why we need this change.
Signed-off-by: Andreas Gruenbacher <[EMAIL PROTECTED]>
Acked-by: Olaf Kirch <[EMAIL PROTECTED]>
Index: linux-2.6.11/fs/nfs/nfs3proc.c
===================================================================
--- linux-2.6.11.orig/fs/nfs/nfs3proc.c
+++ linux-2.6.11/fs/nfs/nfs3proc.c
@@ -292,6 +292,38 @@ static int nfs3_proc_commit(struct nfs_w
return status;
}
+static int nfs3_set_default_acl(struct inode *dir, struct inode *inode,
+ mode_t mode)
+{
+#ifdef CONFIG_NFS_ACL
+ struct posix_acl *dfacl, *acl;
+ int error = 0;
+
+ dfacl = NFS_PROTO(dir)->getacl(dir, ACL_TYPE_DEFAULT);
+ if (IS_ERR(dfacl)) {
+ error = PTR_ERR(dfacl);
+ return (error == -EOPNOTSUPP) ? 0 : error;
+ }
+ if (!dfacl)
+ return 0;
+ acl = posix_acl_clone(dfacl, GFP_KERNEL);
+ error = -ENOMEM;
+ if (!acl)
+ goto out;
+ error = posix_acl_create_masq(acl, &mode);
+ if (error < 0)
+ goto out;
+ error = NFS_PROTO(inode)->setacls(inode, acl, S_ISDIR(inode->i_mode) ?
+ dfacl : NULL);
+out:
+ posix_acl_release(acl);
+ posix_acl_release(dfacl);
+ return error;
+#else
+ return 0;
+#endif
+}
+
/*
* Create a regular file.
* For now, we don't implement O_EXCL.
@@ -314,8 +346,12 @@ nfs3_proc_create(struct inode *dir, stru
.fh = &fhandle,
.fattr = &fattr
};
+ mode_t mode;
int status;
+ mode = sattr->ia_mode;
+ sattr->ia_mode &= ~current->fs->umask;
+
dprintk("NFS call create %s\n", dentry->d_name.name);
arg.createmode = NFS3_CREATE_UNCHECKED;
if (flags & O_EXCL) {
@@ -350,7 +386,6 @@ again:
exit:
dprintk("NFS reply create: %d\n", status);
-
if (status != 0)
goto out;
if (fhandle.size == 0 || !(fattr.valid & NFS_ATTR_FATTR)) {
@@ -384,9 +419,13 @@ exit:
if (status == 0) {
struct inode *inode;
inode = nfs_fhget(dir->i_sb, &fhandle, &fattr);
- if (inode)
- return inode;
status = -ENOMEM;
+ if (!inode)
+ goto out;
+ status = nfs3_set_default_acl(dir, inode, mode);
+ if (status)
+ goto out;
+ return inode;
}
out:
return ERR_PTR(status);
@@ -556,8 +595,12 @@ nfs3_proc_mkdir(struct inode *dir, struc
.fh = &fh,
.fattr = &fattr
};
+ mode_t mode;
int status;
+ mode = sattr->ia_mode;
+ sattr->ia_mode &= ~current->fs->umask;
+
dprintk("NFS call mkdir %s\n", dentry->d_name.name);
dir_attr.valid = 0;
fattr.valid = 0;
@@ -566,6 +609,8 @@ nfs3_proc_mkdir(struct inode *dir, struc
if (!status)
status = nfs_instantiate(dentry, &fh, &fattr);
dprintk("NFS reply mkdir: %d\n", status);
+ if (!status)
+ status = nfs3_set_default_acl(dir, dentry->d_inode, mode);
return status;
}
@@ -659,6 +704,7 @@ nfs3_proc_mknod(struct inode *dir, struc
.fh = &fh,
.fattr = &fattr
};
+ mode_t mode;
int status;
switch (sattr->ia_mode & S_IFMT) {
@@ -669,6 +715,9 @@ nfs3_proc_mknod(struct inode *dir, struc
default: return -EINVAL;
}
+ mode = sattr->ia_mode;
+ sattr->ia_mode &= ~current->fs->umask;
+
dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name,
MAJOR(rdev), MINOR(rdev));
dir_attr.valid = 0;
@@ -678,6 +727,8 @@ nfs3_proc_mknod(struct inode *dir, struc
if (!status)
status = nfs_instantiate(dentry, &fh, &fattr);
dprintk("NFS reply mknod: %d\n", status);
+ if (!status)
+ status = nfs3_set_default_acl(dir, dentry->d_inode, mode);
return status;
}
Index: linux-2.6.11/fs/nfs/inode.c
===================================================================
--- linux-2.6.11.orig/fs/nfs/inode.c
+++ linux-2.6.11/fs/nfs/inode.c
@@ -485,6 +485,8 @@ nfs_fill_super(struct super_block *sb, s
server->client_acl = clnt;
/* Initially assume the nfsacl program is supported */
server->flags |= NFSACL;
+ /* The nfs client applies the umask itself when needed. */
+ sb->s_flags |= MS_POSIXACL;
}
#endif
if (server->flags & NFS_MOUNT_VER3) {
--- End Message ---
