Hello Elliot On 08/24/2018 07:28 PM, enh wrote: > I regularly see excessive fd usage bugs (or even leaks) caused by people > who think they need to keep the fd open as long as the mapping exists. Good idea! Patch applied. Cheers, Michael > --- > man2/mmap.2 | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/man2/mmap.2 b/man2/mmap.2 > index 3d3d1882f..7ca39ff5d 100644 > --- a/man2/mmap.2 > +++ b/man2/mmap.2 > @@ -87,6 +87,8 @@ in the file (or other object) referred to by the > file descriptor > .I offset > must be a multiple of the page size as returned by > .IR sysconf(_SC_PAGE_SIZE) . > +The file descriptor can be closed immediately without invalidating the > +mapping. > .PP > The > .I prot -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
