diff options
| author | Christoph Hellwig <hch@lst.de> | 2015-01-14 10:42:32 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-01-20 14:02:58 -0700 |
| commit | b4caecd48005fbed3949dde6c1cb233142fd69e9 (patch) | |
| tree | 1fdd9b7c15568c79eb3c1ed84a39858ddbcbc88b /fs/9p | |
| parent | 97b713ba3ebaa6c8d84c2c720f5468a7c6a6eb4e (diff) | |
| download | blackbird-op-linux-b4caecd48005fbed3949dde6c1cb233142fd69e9.tar.gz blackbird-op-linux-b4caecd48005fbed3949dde6c1cb233142fd69e9.zip | |
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 'fs/9p')
| -rw-r--r-- | fs/9p/v9fs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c index 6894b085f0ee..620d93489539 100644 --- a/fs/9p/v9fs.c +++ b/fs/9p/v9fs.c @@ -335,7 +335,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses, } init_rwsem(&v9ses->rename_sem); - rc = bdi_setup_and_register(&v9ses->bdi, "9p", BDI_CAP_MAP_COPY); + rc = bdi_setup_and_register(&v9ses->bdi, "9p"); if (rc) { kfree(v9ses->aname); kfree(v9ses->uname); |
