AcoSail/kernel_optimize_test
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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

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Pull Ceph fixes form Sage Weil:
 "There are two fixes in the messenger code, one that can trigger a NULL
  dereference, and one that error in refcounting (extra put).  There is
  also a trivial fix that in the fs client code that is triggered by NFS
  reexport."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
  ceph: fix dentry reference leak in encode_fh()
  libceph: avoid NULL kref_put when osd reset races with alloc_msg
  rbd: reset BACKOFF if unable to re-queue
This commit is contained in:
Linus Torvalds 2012-10-29 08:49:25 -07:00
commit 35fd3dc58d
2 changed files with 6 additions and 2 deletions
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2
fs/ceph/export.c
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@ -90,6 +90,8 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, int *max_len,
*max_len = handle_length;
type = 255;
}
if (dentry)
dput(dentry);
return type;
}

6
net/ceph/messenger.c
View File

@ -2300,10 +2300,11 @@ static void con_work(struct work_struct *work)
mutex_unlock(&con->mutex);
return;
} else {
con->ops->put(con);
dout("con_work %p FAILED to back off %lu\n", con,
con->delay);
set_bit(CON_FLAG_BACKOFF, &con->flags);
}
goto done;
}
if (con->state == CON_STATE_STANDBY) {
@ -2749,7 +2750,8 @@ static int ceph_con_in_msg_alloc(struct ceph_connection *con, int *skip)
msg = con->ops->alloc_msg(con, hdr, skip);
mutex_lock(&con->mutex);
if (con->state != CON_STATE_OPEN) {
ceph_msg_put(msg);
if (msg)
ceph_msg_put(msg);
return -EAGAIN;
}
con->in_msg = msg;