On Wed, Jan 13, 2016 at 03:53:10PM -0800, Nikhilesh Reddy wrote: > Add support for filesystem stacked read/write of files > when enabled through a userspace init option of FUSE_STACKED_IO. > > When FUSE_STACKED_IO is enabled all the reads and writes > to the fuse mount point go directly to the native filesystem > rather than through the fuse daemon. All requests that aren't > read/write still go thought the userspace code. > > Mmaped I/O is still not supported through stacking and can be > added in. > > This allows for significantly better performance on read and writes. > The difference in performance between fuse and the native lower > filesystem is negligible. > > There is also a significant cpu/power savings that is achieved which > is really important on embedded systems that use fuse for I/O. > > Signed-off-by: Nikhilesh Reddy <reddyn@xxxxxxxxxxxxxx> > --- > fs/fuse/Makefile | 2 +- > fs/fuse/dev.c | 4 ++ > fs/fuse/dir.c | 3 ++ > fs/fuse/file.c | 37 +++++++++++++-- > fs/fuse/fuse_i.h | 10 ++++ > fs/fuse/fuse_stacked.h | 31 +++++++++++++ > fs/fuse/inode.c | 5 ++ > fs/fuse/stacked_io.c | 113 > ++++++++++++++++++++++++++++++++++++++++++++++ Your patch is line-wrapped and impossible to apply. And why cc: me? This isn't my area of the kernel... greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
