Hi Christian, Christian Brauner <christian.brauner@xxxxxxxxxx> writes: > On Mon, Oct 19, 2020 at 12:26:52PM +0200, Giuseppe Scrivano wrote: >> When the new flag is used, close_range will set the close-on-exec bit >> for the file descriptors instead of close()-ing them. >> >> It is useful for e.g. container runtimes that want to minimize the >> number of syscalls used after a seccomp profile is installed but want >> to keep some fds open until the container process is executed. >> >> v1->v2: >> * move close_range(..., CLOSE_RANGE_CLOEXEC) implementation to a separate function. >> * use bitmap_set() to set the close-on-exec bits in the bitmap. >> * add test with rlimit(RLIMIT_NOFILE) in place. >> * use "cur_max" that is already used by close_range(..., 0). > > I'm picking this up for some testing, thanks > Christian thanks! I've addressed the comments you had for v2 and pushed them here[1] but I've not sent yet v3 as I was waiting for a feedback from Al whether using bitmap_set() is fine. Regards, Giuseppe [1] https://github.com/giuseppe/linux/tree/close-range-cloexec
