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authorVincent Whitchurch <vincent.whitchurch@axis.com>2021-03-19 16:57:11 +0300
committerSteve French <stfrench@microsoft.com>2021-03-27 02:05:26 +0300
commit219481a8f90ec3a5eed9638fb35609e4b1aeece7 (patch)
tree1438bef3fa4e1081fb5223570265348a04202665
parentcee8f4f6fcabfdf229542926128e9874d19016d5 (diff)
downloadlinux-219481a8f90ec3a5eed9638fb35609e4b1aeece7.tar.xz
cifs: Silently ignore unknown oplock break handle
Make SMB2 not print out an error when an oplock break is received for an unknown handle, similar to SMB1. The debug message which is printed for these unknown handles may also be misleading, so fix that too. The SMB2 lease break path is not affected by this patch. Without this, a program which writes to a file from one thread, and opens, reads, and writes the same file from another thread triggers the below errors several times a minute when run against a Samba server configured with "smb2 leases = no". CIFS: VFS: \\192.168.0.1 No task to wake, unknown frame received! NumMids 2 00000000: 424d53fe 00000040 00000000 00000012 .SMB@........... 00000010: 00000001 00000000 ffffffff ffffffff ................ 00000020: 00000000 00000000 00000000 00000000 ................ 00000030: 00000000 00000000 00000000 00000000 ................ Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by: Tom Talpey <tom@talpey.com> Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com>
-rw-r--r--fs/cifs/smb2misc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c
index b50164e2c88d..aac384f69f74 100644
--- a/fs/cifs/smb2misc.c
+++ b/fs/cifs/smb2misc.c
@@ -754,8 +754,8 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
}
}
spin_unlock(&cifs_tcp_ses_lock);
- cifs_dbg(FYI, "Can not process oplock break for non-existent connection\n");
- return false;
+ cifs_dbg(FYI, "No file id matched, oplock break ignored\n");
+ return true;
}
void