This patch implements readdirplus support in FUSE usersapce. It adds
a new fuse lowlevel operations fuse_lowleve_ops::readdir_plus,
corespoding mount options and helper functions to maintain buffer.
[From: Eric Wong <normalperson@yhbt.net>]
This makes our terminology consistent with NFS and
our kernel module, as well as reducing user/developer
confusion in the command-line.
Note: I'm keeping "fuse_add_direntry_plus" since that is
less standardized in its use than "readdirplus" for now.
Signed-off-by: Feng Shuo <steve.shuo.feng@gmail.com>
fallocate filesystem operation preallocates media space for the given file.
If fallocate returns success then any subsequent write to the given range
never fails with 'not enough space' error.
This partially reverts commit 4b2157c44e.
Remove mmap/munmap suppor as this missed the interface changes for Linux-3.3
(API version 7.18).
Only revert the mmap/munmap bits and leave the retrieve_reply API fix in place
as well as the optimization in fuse_send_data_iov_fallback().
libfuse part to allow a FUSE file-system to tell the kernel when a
file or directory is deleted. If the specified dentry has the
specified inode number, the kernel will unhash it.
Signed-off-by: John Muir <john@jmuir.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Add new ->write_buf() method to low level interface. This
allows passig a generic buffer, either containing a memory buffer
or a file descriptor. This allows implementing zero copy writes.
Add fuse_session_receive_buf() and fuse_session_process_buf()
which may be used in event loop implementations to replace
fuse_chan_recv() and fuse_session_process() respectively.
fuse_versionscript included fuse_chan_new in both FUSE_2.4 and
FUSE_2.6. Remove the FUSE_2.4, which is invalid.
Reported by Raymes Khoury, who discovered this with the gold linker
Add a generic buffer interface for use with I/O. Buffer vectors are
supplied and each buffer in the vector may be a memory pointer or a
file descriptor.
The fuse_reply_fd() interface is converted to using buffers.
for mknod, mkdir and create requests by linux kernel version
2.6.31 or later, otherwise the umask is set to zero. Also
introduce a new feature flag: FUSE_CAP_DONT_MASK. If the kernel
supports this feature, then this flag will be set in conn->capable
in the ->init() method. If the filesystem sets this flag in in
conn->want, then the create modes will not be masked.
* Add low level interfaces for lookup cache and attribute
invalidation. This feature is available in linux kernels 2.6.31
or later. Patch by John Muir
* Kernel interface version is now 7.12
level lib) functions to query the supplementary group IDs for the
current request. Currently this is implemented on Linux by
reading from the /proc filesystem.
"restricted" ioctls are supported (which are defined with the
_IO(), _IOR(), _IOW() or _IOWR() macros). Unrestricted ioctls
will only be allwed to CUSE (Character Device in Userspace)
servers. Patch by Tejun Heo
Miklos Szeredi