From 9150c3adbf24d77cfba37f03639d4a908ca4ac25 Mon Sep 17 00:00:00 2001 From: Pavel Shilovsky Date: Thu, 21 Nov 2019 11:35:12 -0800 Subject: CIFS: Close open handle after interrupted close If Close command is interrupted before sending a request to the server the client ends up leaking an open file handle. This wastes server resources and can potentially block applications that try to remove the file or any directory containing this file. Fix this by putting the close command into a worker queue, so another thread retries it later. Cc: Stable Tested-by: Frank Sorenson Reviewed-by: Ronnie Sahlberg Signed-off-by: Pavel Shilovsky Signed-off-by: Steve French --- fs/cifs/smb2proto.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/cifs/smb2proto.h') diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h index 71b2930b8e0b..2a12a2fa38a2 100644 --- a/fs/cifs/smb2proto.h +++ b/fs/cifs/smb2proto.h @@ -212,6 +212,9 @@ extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon, extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon, const u64 persistent_fid, const u64 volatile_fid, const __u8 oplock_level); +extern int smb2_handle_cancelled_close(struct cifs_tcon *tcon, + __u64 persistent_fid, + __u64 volatile_fid); extern int smb2_handle_cancelled_mid(char *buffer, struct TCP_Server_Info *server); void smb2_cancelled_close_fid(struct work_struct *work); -- cgit v1.2.3