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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: fix bad error path in conversion routines
  9p: remove deprecated v9fs_fid_lookup_remove()
  9p: update maintainers and documentation
  9p: fix use after free
hifive-unleashed-5.1
Linus Torvalds 2007-08-23 21:38:21 -07:00
parent 6dc2c1b779 02881d9478
commit 0542170dec
6 changed files with 28 additions and 28 deletions
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24
Documentation/filesystems/9p.txt
View File

@ -6,12 +6,26 @@ ABOUT
v9fs is a Unix implementation of the Plan 9 9p remote filesystem protocol.
This software was originally developed by Ron Minnich <rminnich@lanl.gov>
and Maya Gokhale <maya@lanl.gov>. Additional development by Greg Watson
This software was originally developed by Ron Minnich <rminnich@sandia.gov>
and Maya Gokhale. Additional development by Greg Watson
<gwatson@lanl.gov> and most recently Eric Van Hensbergen
<ericvh@gmail.com>, Latchesar Ionkov <lucho@ionkov.net> and Russ Cox
<rsc@swtch.com>.
The best detailed explanation of the Linux implementation and applications of
the 9p client is available in the form of a USENIX paper:
http://www.usenix.org/events/usenix05/tech/freenix/hensbergen.html
Other applications are described in the following papers:
* XCPU & Clustering
http://www.xcpu.org/xcpu-talk.pdf
* KVMFS: control file system for KVM
http://www.xcpu.org/kvmfs.pdf
* CellFS: A New ProgrammingModel for the Cell BE
http://www.xcpu.org/cellfs-talk.pdf
* PROSE I/O: Using 9p to enable Application Partitions
http://plan9.escet.urjc.es/iwp9/cready/PROSE_iwp9_2006.pdf
USAGE
=====
@ -90,9 +104,9 @@ subset of the namespace by extending the path: '#U*'/tmp would just export
and export.
A Linux version of the 9p server is now maintained under the npfs project
on sourceforge (http://sourceforge.net/projects/npfs). There is also a
more stable single-threaded version of the server (named spfs) available from
the same CVS repository.
on sourceforge (http://sourceforge.net/projects/npfs). The currently
maintained version is the single-threaded version of the server (named spfs)
available from the same CVS repository.
There are user and developer mailing lists available through the v9fs project
on sourceforge (http://sourceforge.net/projects/v9fs).

4
MAINTAINERS
View File

@ -167,11 +167,11 @@ S: Maintained
P: Eric Van Hensbergen
M: ericvh@gmail.com
P: Ron Minnich
M: rminnich@lanl.gov
M: rminnich@sandia.gov
P: Latchesar Ionkov
M: lucho@ionkov.net
L: v9fs-developer@lists.sourceforge.net
W: http://v9fs.sf.net
W: http://swik.net/v9fs
T: git kernel.org:/pub/scm/linux/kernel/ericvh/v9fs.git
S: Maintained

17
fs/9p/fid.c
View File

@ -92,23 +92,6 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry)
return fid;
}
struct p9_fid *v9fs_fid_lookup_remove(struct dentry *dentry)
{
struct p9_fid *fid;
struct v9fs_dentry *dent;
dent = dentry->d_fsdata;
fid = v9fs_fid_lookup(dentry);
if (!IS_ERR(fid)) {
spin_lock(&dent->lock);
list_del(&fid->dlist);
spin_unlock(&dent->lock);
}
return fid;
}
/**
* v9fs_fid_clone - lookup the fid for a dentry, clone a private copy and
* release it

1
fs/9p/fid.h
View File

@ -28,6 +28,5 @@ struct v9fs_dentry {
};
struct p9_fid *v9fs_fid_lookup(struct dentry *dentry);
struct p9_fid *v9fs_fid_lookup_remove(struct dentry *dentry);
struct p9_fid *v9fs_fid_clone(struct dentry *dentry);
int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid);

1
net/9p/conv.c
View File

@ -796,6 +796,7 @@ struct p9_fcall *p9_create_twrite_u(u32 fid, u64 offset, u32 count,
if (err) {
kfree(fc);
fc = ERR_PTR(err);
goto error;
}
if (buf_check_overflow(bufp)) {

9
net/9p/mux.c
View File

@ -288,9 +288,10 @@ struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize,
m->extended = extended;
m->trans = trans;
m->tagpool = p9_idpool_create();
if (!m->tagpool) {
if (IS_ERR(m->tagpool)) {
mtmp = ERR_PTR(-ENOMEM);
kfree(m);
return ERR_PTR(PTR_ERR(m->tagpool));
return mtmp;
}
m->err = 0;
@ -308,8 +309,10 @@ struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize,
memset(&m->poll_waddr, 0, sizeof(m->poll_waddr));
m->poll_task = NULL;
n = p9_mux_poll_start(m);
if (n)
if (n) {
kfree(m);
return ERR_PTR(n);
}
n = trans->poll(trans, &m->pt);
if (n & POLLIN) {