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Signed-off-by: izxl007 <zeng.zheng@zte.com.cn>
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When building and installing FUSE3 using Meson on CentOS8, the fuse3.pc
file is installed in the /usr/local/lib64/pkgconfig directory. However,
pkg-config does not search for fuse3.pc in this directory, leading to GCC
compilation failures.
This patch improves the compilation comments, helping users successfully
execute the GCC command.
Signed-off-by: izxl007 <zeng.zheng@zte.com.cn>
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32-bit conn->want flags been left to be ABI compatible to 3.10,
even though the so version was changed.
The more recent way is to use fuse_set_feature_flag(),
which will use conn->want_ext.
Given that we now have two flags (want and want_ext), we need
to convert and that brought several issues
- If the application sets conn->want, that needs to be set into
the lower 32 bit of conn->want_ext. As the application might
actually unset values, it really has to be a copy and not
just 'or' - fixed now.
- convert_to_conn_want_ext() actually needs to check for
_modified_ conn->want and conn->want_ext
- convert_to_conn_want_ext() must consider being called from
high and lowlevel interfact, with different want_ext_default
and want_default values. It is only a failure, if the application
changed both, conn->want and conn->want_ext. This function
was failing in issue #1171, because high level fuse_fs_init()
was changing values and then lowlevel do_init() was incorrectly
failing on that.
This also adds a new test (test_want_conversion) and sets
values into example/{hello.c,hello_ll.c}
Also some more internal users of conn->want are converted to
fuse_{set,unset}_feature_flag().
Closes: https://github.com/libfuse/libfuse/issues/1171
Signed-off-by: Bernd Schubert <bernd@bsbernd.com>
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This is an addition to commit a8f1ae35af66, which
introduced the 312 API, but didn't set the right
API version in all examples.
Signed-off-by: Bernd Schubert <bschubert@ddn.com>
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The function fuse_session_process_buf_int() would do much things
for FUSE_INTERRUPT requests, even there are no FUSE_INTERRUPT requests:
1. check every non-FUSE_INTERRUPT request and add these requests to the
linked list(se->list) under a big lock(se->lock).
2. the function fuse_free_req() frees every request and remove them from
the linked list(se->list) under a bing lock(se->lock).
These operations are not meaningful when there are no FUSE_INTERRUPT requests,
and have a great impact on the performance of fuse filesystem because the big
lock for each request.
In some cases, FUSE_INTERRUPT requests are infrequent, even none at all.
Besides, the user-defined filesystem may do nothing for FUSE_INTERRUPT requests.
And the kernel side has the option "no_interrupt" in struct fuse_conn. This kernel option
can be enabled by return ENOSYS in libfuse for the reply of FUSE_INTERRUPT request.
But I don't find the code to enable the "no_interrupt" kernel option in libfuse.
So add the no_interrupt support, and when this operaion is enabled:
1. remove the useless locking operaions and list operations.
2. return ENOSYS for the reply of FUSE_INTERRUPT request to inform the kernel to disable
FUSE_INTERRUPT request.
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Convert all the remaining users of fuse_session_loop_mt() to
the new 3.12 config api.
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Hopefully, this will catch issues as in commit 024eccbf3
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IN a bunch of comments we say 'under the terms of the GNU GPL', make
it clear this is GPLv2 (as LICENSE says).
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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If hello_ll is invoked without a mountpoint, it will try to call
fuse_session_mount anyway with the NULL mountpoint (which then causes a
segfault). Print out a short help message instead (taken from
passthrough_ll.c).
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Fixes: #208.
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Fixes: #81.
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We now only list options that are potentially useful for an
end-user (and unlikely to accidentally break a file system). The full
list of FUSE options has been moved to the documentation of the
fuse_new() and fuse_session_new() functions.
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Instead of using command line options to modify struct fuse_conn_info
before and after calling the init() handler, we now give the file system
explicit control over this.
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This option really affects the behavior of the session loop, not the
low-level interface. Therefore, it does not belong in the fuse_session
object.
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The current behavior makes it difficult to add help for
additional options. With the change, this becomes a lot easier.
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Help and version messages can be generated using the new
fuse_lowlevel_help(), fuse_lowlevel_version(), fuse_mount_help(), and
fuse_mount_version() functions.
The fuse_parse_cmdline() function has been made more powerful
to do this automatically, and is now explicitly intended only
for low-level API users.
This is a code simplication patch. We don't have to parse for --help and
--version in quite as many places, and we no longer have a low-level
initialization function be responsible for the (super-high level) task
of printing a program usage message.
In the high-level API, we can now handle the command line parsing
earlier and avoid running other initialization code if we're just going
to abort later on.
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The only struct fuse_chan that's accessible to the user application is
the "master" channel that is returned by fuse_mount and stored in struct
fuse_session.
When using the multi-threaded main loop with the "clone_fd" option, each
worker thread gets its own struct fuse_chan. However, none of these are
available to the user application, nor do they hold references to struct
fuse_session (the pointer is always null).
Therefore, any presence of struct fuse_chan can be removed
without loss of functionality by relying on struct fuse_session instead.
This reduces the number of API functions and removes a potential source
of confusion (since the new API no longer looks as if it might be
possible to add multiple channels to one session, or to share one
channel between multiple sessions).
Fixes issue #17.
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Allow 2.X and 3.X to coexist. Includes are now stored under
/usr/include/fuse3 and library is named libfuse3.*. Invoke pkg-config with
"fuse3" as the first argument to build with version 3 of the library.
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add AC_SYS_LARGEFILE to your configure.ac instead.
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- modified all examples to be included in doxygen
- modified the API documentation to have more details
- added the 490px_FUSE_structure.svg.png (c) wikipedia
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Change the version numbers.
This is going to be a new major version of the library breaking backward
compatibility on the binary level as well as the source level.
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Reported by Luciano Dalle Ore
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