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| author | Amir Goldstein <amir73il@gmail.com> | 2023-12-03 10:42:33 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2023-12-04 12:19:32 +0300 |
| commit | 3f29f1c336c0e8a4bec52f1e5217f88835553e5b (patch) | |
| tree | fd5138491b4c0cace1e80ac62cb49c2ff3f2ab0d /Documentation | |
| parent | 7f8ed28d1401320bcb02dda81b3c23ab2dc5a6d8 (diff) | |
| download | linux-3f29f1c336c0e8a4bec52f1e5217f88835553e5b.tar.xz | |
fuse: disable FOPEN_PARALLEL_DIRECT_WRITES with FUSE_DIRECT_IO_ALLOW_MMAP
The new fuse init flag FUSE_DIRECT_IO_ALLOW_MMAP breaks assumptions made by
FOPEN_PARALLEL_DIRECT_WRITES and causes test generic/095 to hit
BUG_ON(fi->writectr < 0) assertions in fuse_set_nowrite():
generic/095 5s ...
kernel BUG at fs/fuse/dir.c:1756!
...
? fuse_set_nowrite+0x3d/0xdd
? do_raw_spin_unlock+0x88/0x8f
? _raw_spin_unlock+0x2d/0x43
? fuse_range_is_writeback+0x71/0x84
fuse_sync_writes+0xf/0x19
fuse_direct_io+0x167/0x5bd
fuse_direct_write_iter+0xf0/0x146
Auto disable FOPEN_PARALLEL_DIRECT_WRITES when server negotiated
FUSE_DIRECT_IO_ALLOW_MMAP.
Fixes: e78662e818f9 ("fuse: add a new fuse init flag to relax restrictions in no cache mode")
Cc: <stable@vger.kernel.org> # v6.6
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions