Todd, > Take f_mutex around mmap() processing to protect against races with > the SG_SET_RESERVED_SIZE ioctl. Ensure the reserve buffer length > remains consistent during the mapping operation, and set the > "mmap called" flag to prevent further changes to the reserved buffer > size as an atomic operation with the mapping.
Applied to 4.14/scsi-queue (with a slight whitespace fix). Thanks! -- Martin K. Petersen Oracle Linux Engineering
