cifs: add support for FALLOC_FL_COLLAPSE_RANGE
Emulated for SMB3 and later via server side copy and setsize. Eventually this could be compounded. Reported-by:kernel test robot <lkp@intel.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by:
Steve French <stfrench@microsoft.com>
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