On Tue, Jul 01, 2025 at 01:44:16PM +0200, Hanna Czenczek wrote: > Hi, > > This series: > - Fixes some bugs/minor inconveniences, > - Removes libfuse from the request processing path, > - Make the FUSE export use coroutines for request handling, > - Introduces multi-threading into the FUSE export. > > More detail on the v1 cover letter: > https://lists.nongnu.org/archive/html/qemu-block/2025-03/msg00359.html > > v2 cover letter: > https://lists.nongnu.org/archive/html/qemu-block/2025-06/msg00040.html > > > Changes from v2: > - Patch 12: Moved qemu_fcntl_addfl() into the #ifndef _WIN32 section > where other fcntl() wrappers reside > - Patch 13: Fixed comment to say `export` instead of `exp`; kept > Stefan’s R-b > - Patch 15: Same as patch 13 > - Patch 18: In macro, use correct parameter `queue` instead of the > non-existing `q` > > > git-backport-diff from v2: > > Key: > [----] : patches are identical > [####] : number of functional differences between upstream/downstream patch > [down] : patch is downstream-only > The flags [FC] indicate (F)unctional and (C)ontextual differences, > respectively > > 001/21:[----] [--] 'fuse: Copy write buffer content before polling' > 002/21:[----] [--] 'fuse: Ensure init clean-up even with error_fatal' > 003/21:[----] [--] 'fuse: Remove superfluous empty line' > 004/21:[----] [--] 'fuse: Explicitly set inode ID to 1' > 005/21:[----] [--] 'fuse: Change setup_... to mount_fuse_export()' > 006/21:[----] [--] 'fuse: Fix mount options' > 007/21:[----] [--] 'fuse: Set direct_io and parallel_direct_writes' > 008/21:[----] [--] 'fuse: Introduce fuse_{at,de}tach_handlers()' > 009/21:[----] [--] 'fuse: Introduce fuse_{inc,dec}_in_flight()' > 010/21:[----] [--] 'fuse: Add halted flag' > 011/21:[----] [--] 'fuse: Rename length to blk_len in fuse_write()' > 012/21:[----] [-C] 'block: Move qemu_fcntl_addfl() into osdep.c' > 013/21:[0008] [FC] 'fuse: Manually process requests (without libfuse)' > 014/21:[----] [--] 'fuse: Reduce max read size' > 015/21:[0008] [FC] 'fuse: Process requests in coroutines' > 016/21:[----] [--] 'block/export: Add multi-threading interface' > 017/21:[----] [--] 'iotests/307: Test multi-thread export interface' > 018/21:[0016] [FC] 'fuse: Implement multi-threading' > 019/21:[----] [--] 'qapi/block-export: Document FUSE's multi-threading' > 020/21:[----] [--] 'iotests/308: Add multi-threading sanity test' > 021/21:[----] [--] 'fuse: Increase MAX_WRITE_SIZE with a second buffer' > > > Hanna Czenczek (21): > fuse: Copy write buffer content before polling > fuse: Ensure init clean-up even with error_fatal > fuse: Remove superfluous empty line > fuse: Explicitly set inode ID to 1 > fuse: Change setup_... to mount_fuse_export() > fuse: Fix mount options > fuse: Set direct_io and parallel_direct_writes > fuse: Introduce fuse_{at,de}tach_handlers() > fuse: Introduce fuse_{inc,dec}_in_flight() > fuse: Add halted flag > fuse: Rename length to blk_len in fuse_write() > block: Move qemu_fcntl_addfl() into osdep.c > fuse: Manually process requests (without libfuse) > fuse: Reduce max read size > fuse: Process requests in coroutines > block/export: Add multi-threading interface > iotests/307: Test multi-thread export interface > fuse: Implement multi-threading > qapi/block-export: Document FUSE's multi-threading > iotests/308: Add multi-threading sanity test > fuse: Increase MAX_WRITE_SIZE with a second buffer > > qapi/block-export.json | 39 +- > include/block/export.h | 12 +- > include/qemu/osdep.h | 1 + > block/export/export.c | 48 +- > block/export/fuse.c | 1181 ++++++++++++++++++++------ > block/export/vduse-blk.c | 7 + > block/export/vhost-user-blk-server.c | 8 + > block/file-posix.c | 17 +- > nbd/server.c | 6 + > util/osdep.c | 18 + > tests/qemu-iotests/307 | 47 + > tests/qemu-iotests/307.out | 18 + > tests/qemu-iotests/308 | 55 +- > tests/qemu-iotests/308.out | 61 +- > 14 files changed, 1213 insertions(+), 305 deletions(-) > > -- > 2.49.0 >
Nice! Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
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