diff options
author | Christoph Hellwig <hch@lst.de> | 2015-01-14 10:42:32 +0100 |
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committer | Jens Axboe <axboe@fb.com> | 2015-01-20 14:02:58 -0700 |
commit | b4caecd48005fbed3949dde6c1cb233142fd69e9 (patch) | |
tree | 1fdd9b7c15568c79eb3c1ed84a39858ddbcbc88b /include/linux/nsc_gpio.h | |
parent | 97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e (diff) |
fs: introduce f_op->mmap_capabilities for nommu mmap support
Since "BDI: Provide backing device capability information [try #3]" the
backing_dev_info structure also provides flags for the kind of mmap
operation available in a nommu environment, which is entirely unrelated
to it's original purpose.
Introduce a new nommu-only file operation to provide this information to
the nommu mmap code instead. Splitting this from the backing_dev_info
structure allows to remove lots of backing_dev_info instance that aren't
otherwise needed, and entirely gets rid of the concept of providing a
backing_dev_info for a character device. It also removes the need for
the mtd_inodefs filesystem.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Tejun Heo <tj@kernel.org>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/nsc_gpio.h')
0 files changed, 0 insertions, 0 deletions