diff options
| author | Jeff Layton <jlayton@redhat.com> | 2012-05-16 07:13:17 -0400 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2012-05-16 20:13:30 -0500 |
| commit | 6993f74a5bf836210e7f253d5ad3f76d73a95f51 (patch) | |
| tree | 6b0cf7d6aed03e9d7d0b705cf7ba79792ab062a2 /fs/cifs/cifssmb.c | |
| parent | 8d5ce4d23c79e0f9861b19fc534f5b2dc636f79c (diff) | |
| download | linux-6993f74a5bf836210e7f253d5ad3f76d73a95f51.tar.bz2 | |
cifs: add refcounting to cifs_readdata structures
This isn't strictly necessary for the async readpages code, but the
uncached version will need to be able to collect the replies after
issuing the calls. Add a kref to cifs_readdata and use change the
code to take and put references appropriately.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 3aa1fcc15156..45633da461a8 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1635,12 +1635,15 @@ cifs_async_readv(struct cifs_readdata *rdata) rdata->iov[0].iov_base = smb; rdata->iov[0].iov_len = be32_to_cpu(smb->hdr.smb_buf_length) + 4; + kref_get(&rdata->refcount); rc = cifs_call_async(tcon->ses->server, rdata->iov, 1, cifs_readv_receive, cifs_readv_callback, rdata, false); if (rc == 0) cifs_stats_inc(&tcon->num_reads); + else + kref_put(&rdata->refcount, cifs_readdata_release); cifs_small_buf_release(smb); return rc; |