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9p changes for the 3.4 merge window

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The following changes since commit 3c761ea05a:
 
   Fix autofs compile without CONFIG_COMPAT (2012-02-26 09:44:55 -0800)
 
 are available in the git repository at:
   git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs.git for-linus
 
 Jim Garlick (3):
       net/9p: don't allow Tflush to be interrupted
       net/9p: handle flushed Tclunk/Tremove
       9p: statfs should not override server f_type
 
  fs/9p/vfs_super.c |    2 +-
  net/9p/client.c   |   26 +++++++++++++++++++++++---
  2 files changed, 24 insertions(+), 4 deletions(-)
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Merge tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs

Pull 9p changes for the 3.4 merge window from Eric Van Hensbergen.

* tag 'for-linus-3.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  9p: statfs should not override server f_type
  net/9p: handle flushed Tclunk/Tremove
  net/9p: don't allow Tflush to be interrupted
This commit is contained in:
Linus Torvalds 2012-03-28 09:58:38 -07:00
commit e9c0f1529c
2 changed files with 24 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/9p/vfs_super.c
View File

@ -259,7 +259,7 @@ static int v9fs_statfs(struct dentry *dentry, struct kstatfs *buf)
if (v9fs_proto_dotl(v9ses)) {
res = p9_client_statfs(fid, &rs);
if (res == 0) {
buf->f_type = V9FS_MAGIC;
buf->f_type = rs.type;
buf->f_bsize = rs.bsize;
buf->f_blocks = rs.blocks;
buf->f_bfree = rs.bfree;

26
net/9p/client.c
View File

@ -740,10 +740,18 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...)
c->status = Disconnected;
goto reterr;
}
again:
/* Wait for the response */
err = wait_event_interruptible(*req->wq,
req->status >= REQ_STATUS_RCVD);
if ((err == -ERESTARTSYS) && (c->status == Connected)
&& (type == P9_TFLUSH)) {
sigpending = 1;
clear_thread_flag(TIF_SIGPENDING);
goto again;
}
if (req->status == REQ_STATUS_ERROR) {
p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
err = req->t_err;
@ -1420,6 +1428,7 @@ int p9_client_clunk(struct p9_fid *fid)
int err;
struct p9_client *clnt;
struct p9_req_t *req;
int retries = 0;
if (!fid) {
pr_warn("%s (%d): Trying to clunk with NULL fid\n",
@ -1428,7 +1437,9 @@ int p9_client_clunk(struct p9_fid *fid)
return 0;
}
p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d\n", fid->fid);
again:
p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d (try %d)\n", fid->fid,
retries);
err = 0;
clnt = fid->clnt;
@ -1444,8 +1455,14 @@ int p9_client_clunk(struct p9_fid *fid)
error:
/*
* Fid is not valid even after a failed clunk
* If interrupted, retry once then give up and
* leak fid until umount.
*/
p9_fid_destroy(fid);
if (err == -ERESTARTSYS) {
if (retries++ == 0)
goto again;
} else
p9_fid_destroy(fid);
return err;
}
EXPORT_SYMBOL(p9_client_clunk);
@ -1470,7 +1487,10 @@ int p9_client_remove(struct p9_fid *fid)
p9_free_req(clnt, req);
error:
p9_fid_destroy(fid);
if (err == -ERESTARTSYS)
p9_client_clunk(fid);
else
p9_fid_destroy(fid);
return err;
}
EXPORT_SYMBOL(p9_client_remove);