* Palmer Dabbelt:
This patch set adds fchmodat4(), a new syscall. The actual implementation is super simple: essentially it's just the same as fchmodat(), but LOOKUP_FOLLOW is conditionally set based on the flags. I've attempted to make this match "man 2 fchmodat" as closely as possible, which says EINVAL is returned for invalid flags (as opposed to ENOTSUPP, which is currently returned by glibc for AT_SYMLINK_NOFOLLOW). I have a sketch of a glibc patch that I haven't even compiled yet, but seems fairly straight-forward:
What's the status here? We'd really like to see this system call in the kernel because our emulation in glibc has its problems (especially if /proc is not mounted). Thanks, Florian
