tree 03aaf3a415b65d5f8aa4eefb06f4cddaeb00f4b5
parent f4a68b9388c7f647ba2fd43faf69cad26ca03206
author Nitin Gupta <ngupta@vflare.org> 1274074362 +0530
committer Greg Kroah-Hartman <gregkh@suse.de> 1274220472 -0700

swap: Add flag to identify block swap devices

Added SWP_BLKDEV flag to distinguish block and regular file backed
swap devices. We could also check if a swap is entire block device,
rather than a file, by:
S_ISBLK(swap_info_struct->swap_file->f_mapping->host->i_mode)
but, I think, simply checking this flag is more convenient.

Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Nigel Cunningham <nigel@tuxonice.net>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Reviewed-by: Minchan Kim <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>