From: Bharath SM bharathsm@microsoft.com
commit 9e31678fb403eae0f4fe37c6374be098835c73cd upstream.
Solution is to send lease break ack immediately even in case of deferred close handles to avoid lease break request timing out and let deferred closed handle gets closed as scheduled. Later patches could optimize cases where we then close some of these handles sooner for the cases where lease break is to 'none'
Cc: stable@kernel.org Signed-off-by: Bharath SM bharathsm@microsoft.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/file.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-)
--- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -4855,8 +4855,6 @@ void cifs_oplock_break(struct work_struc struct TCP_Server_Info *server = tcon->ses->server; int rc = 0; bool purge_cache = false; - bool is_deferred = false; - struct cifs_deferred_close *dclose;
wait_on_bit(&cinode->flags, CIFS_INODE_PENDING_WRITERS, TASK_UNINTERRUPTIBLE); @@ -4893,22 +4891,6 @@ void cifs_oplock_break(struct work_struc
oplock_break_ack: /* - * When oplock break is received and there are no active - * file handles but cached, then schedule deferred close immediately. - * So, new open will not use cached handle. - */ - spin_lock(&CIFS_I(inode)->deferred_lock); - is_deferred = cifs_is_deferred_close(cfile, &dclose); - spin_unlock(&CIFS_I(inode)->deferred_lock); - if (is_deferred && - cfile->deferred_close_scheduled && - delayed_work_pending(&cfile->deferred)) { - if (cancel_delayed_work(&cfile->deferred)) { - _cifsFileInfo_put(cfile, false, false); - goto oplock_break_done; - } - } - /* * releasing stale oplock after recent reconnect of smb session using * a now incorrect file handle is not a data integrity issue but do * not bother sending an oplock release if session to server still is @@ -4919,7 +4901,7 @@ oplock_break_ack: cinode); cifs_dbg(FYI, "Oplock release rc = %d\n", rc); } -oplock_break_done: + _cifsFileInfo_put(cfile, false /* do not wait for ourself */, false); cifs_done_oplock_break(cinode); }