[PATCH 13/15] sysfs: copy bin mmap support from fs/sysfs/bin.c to fs/sysfs/file.c

sysfs bin file handling will be merged into the regular file support. This patch copies mmap support from bin so that fs/sysfs/file.c can handle mmapping bin files. The code is copied mostly verbatim with the following updates. * ->mmapped and ->vm_ops are added to sysfs_open_file and bin_buffer

[PATCH 13/15] sysfs: copy bin mmap support from fs/sysfs/bin.c to fs/sysfs/file.c

sysfs bin file handling will be merged into the regular file support. This patch copies mmap support from bin so that fs/sysfs/file.c can handle mmapping bin files. The code is copied mostly verbatim with the following updates. * -mmapped and -vm_ops are added to sysfs_open_file and bin_buffer