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().
This resulted in ENOENT being returned for unlinked but still open files if the
kernel sent a FORGET request for the parent directory.
Discovered with fs_racer in LTP.
Ville Silventoinen reported that fs_racer in LTP triggered a hang in
wait_on_path(). This bug was caused by try_get_path() not resetting "ticket" on
permanent failure.
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>
Reply to request with ENOMEM in case of failure to allocate request
structure. Otherwise the task issuing the request will just freeze up
until the filesystem daemon is killed. Reported by Stephan Kulow
daemon() is a BSD-ism. Although it is available on many platforms
it is not a standard function. Some platforms (e.g. MacOSX) deprecated
it.
It is safer just to use fork() function that is a part of POSIX.
This fixes problems with emulating flock() with POSIX locking.
Reported by Sebastian Pipping.
As with lock/setlk/getlk most filesystems don't need to implement
this, as the kernel takes care of file locking. The only reason to
implement locking operations is for network filesystems which want
file locking to work between clients.
...with the help of vim :set spell
modified: FAQ
modified: include/fuse.h
modified: include/fuse_common.h
modified: include/fuse_opt.h
modified: lib/fuse_kern_chan.c
modified: util/fusermount.c
Disable splice by default, add "splice_read", "splice_write" and
"splice_move" options. Keep the "no_splice_*" variants, which can
disable splice even if the filesystem explicitly enables it.
This change adds support for "auto_unmount" option to libfuse.
auto_umount option unmounts the fs automatically on application
termination, whether normal or not (segfault, etc).
When auto_unmount option is specified libfuse will alway use
fusermount for mounting the fs. This change is selfcontained but
for complete functionaly it requires auto_unmount support in
fusermount tool.
In fuse_session_loop_mt() don't pause when exiting the worker threads.
The pause() was added in 2.2.1 to prevent segfault on pthread_cancel()
on an exited, detached thread. Now worker threads are not detached
and pthread_cancel() should work fine even after the thread exited.
Reported by Boris Protopopov
Use dynamically resized hash table for looking up by name and node ID.
The chosen implementation is linear hashing, which features gradual
rehashing when while the size of the table increases.
When copying fuse buffers, check if the source and destination are the
same and omit the copy as appropriate. Also check if the source and
destination memory regions overlap and use memmove in that case.
