Dan Williams 34c0fd540e mm, dax, pmem: introduce pfn_t ... For the purpose of communicating the optional presence of a 'struct page' for the pfn returned from ->direct_access(), introduce a type that encapsulates a page-frame-number plus flags. These flags contain the historical "page_link" encoding for a scatterlist entry, but can also denote "device memory". Where "device memory" is a set of pfns that are not part of the kernel's linear mapping by default, but are accessed via the same memory controller as ram. The motivation for this new type is large capacity persistent memory that needs struct page entries in the 'memmap' to support 3rd party DMA (i.e. O_DIRECT I/O with a persistent memory source/target). However, we also need it in support of maintaining a list of mapped inodes which need to be unmapped at driver teardown or freeze_bdev() time. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave@sr71.net> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-01-15 17:56:32 -08:00
..
dasd.c
dasd_3990_erp.c
dasd_alias.c
dasd_devmap.c
dasd_diag.c
dasd_diag.h
dasd_eckd.c
dasd_eckd.h
dasd_eer.c
dasd_erp.c
dasd_fba.c
dasd_fba.h
dasd_genhd.c
dasd_int.h
dasd_ioctl.c
dasd_proc.c
dcssblk.c	mm, dax, pmem: introduce pfn_t	2016-01-15 17:56:32 -08:00
Kconfig
Makefile
scm_blk.c
scm_blk.h
scm_blk_cluster.c
scm_drv.c
xpram.c