Hi, The POSIX standard says fsync(2) can return EINTR: https://pubs.opengroup.org/onlinepubs/9699919799/ The man page does not: https://man7.org/linux/man-pages/man2/fsync.2.html I think fsync can be interrupted by a signal on Linux, so this should just be an oversight in the man page. At least, fsync on fuse seems be able to return EINTR: https://github.com/torvalds/linux/blob/5367cf1c3ad02f7f14d79733814302a96cc97b96/fs/fuse/dev.c#L114 Actually there seem to be numerous error codes that can be returned from all filesystem calls on fuse: ENOTCONN, ENOMEM, etc. But EINTR is at least documented in the POSIX standard, whereas these others seem really rare. But for full correctness I suppose these should be documented as well. It would be quite an undertaking. -- Mathnerd314 (pseudonym)
