• Steve French's avatar
    [CIFS] file create with acl support enabled is slow · 8b1327f6
    Steve French authored
    Shirish Pargaonkar noted:
    With cifsacl mount option, when a file is created on the Windows server,
    exclusive oplock is broken right away because the get cifs acl code
    again opens the file to obtain security descriptor.
    The client does not have the newly created file handle or inode in any
    of its lists yet so it does not respond to oplock break and server waits for
    its duration and then responds to the second open. This slows down file
    creation signficantly.  The fix is to pass the file descriptor to the get
    cifsacl code wherever available so that get cifs acl code does not send
    second open (NT Create ANDX) and oplock is not broken.
    
    CC: Shirish Pargaonkar <shirishp@us.ibm.com>
    Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
    8b1327f6
file.c 57 KB