[git pull] fuse: add store and retrieve support

From: Miklos Szeredi
Date: Fri Aug 06 2010 - 06:51:49 EST


Please pull

git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-linus

This series enables userspace filesystems to store and retrieve data
in the kernel page cache. This allows filesystems to

- poll for changes on mmap regions
- update contents of mmaped or cached regions
- pre-fill cache

This interface is also necessary to support mmap on character devices
(CUSE), which in turn is necessary for full OSS emulation (Tejun's
OSSProxy project). Mmap support is not yet finished but coming


Miklos Szeredi (3):
fuse: don't use atomic kmap
fuse: add store request
fuse: add retrieve request

fs/fuse/dev.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++++--
fs/fuse/file.c | 2 +-
fs/fuse/fuse_i.h | 3 +
include/linux/fuse.h | 34 +++++++-
4 files changed, 260 insertions(+), 8 deletions(-)
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