RE: [PATCH v1 1/2] open: add close_range()
From: David Laight <hidden>
Date: 2019-05-23 16:29:54
Also in:
linux-alpha, linux-api, linux-arch, linux-fsdevel, linux-kselftest, linux-mips, linux-sh, linuxppc-dev, lkml, sparclinux
From: Konstantin Khlebnikov
Sent: 23 May 2019 17:22
....
> In addition, the syscall will also work for tasks that do not have procfs > mounted and on kernels that do not have procfs support compiled in. In such > situations the only way to make sure that all file descriptors are closed > is to call close() on each file descriptor up to UINT_MAX or RLIMIT_NOFILE, > OPEN_MAX trickery (cf. comment [8] on Rust).
Code using RLIMIT_NOFILE is broken. It is easy to reduce the hard limit below that of an open fd. David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales) _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel