Hi Pavel, On Mon, Feb 18, 2013 at 5:50 PM, Pavel Emelyanov <xemul@xxxxxxxxxxxxx> wrote: > It was added into Linux v3.3 and provides info about files being mmap-ed in > a way _very_ similar to how /proc/[pid]/fd works. Thus I thought that the > best place for the map_files' doc is where where the fd's doc is. > > Signed-off-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx> Could you please resubmit with some added text that shows an example of what you see in this file (including a /dev/zero case)? Also, the patch should mention that CONFIG_CHECKPOINT_RESTORE is required. Thanks, Michael > --- > > diff --git a/man5/proc.5 b/man5/proc.5 > index 30ca3a9..1226747 100644 > --- a/man5/proc.5 > +++ b/man5/proc.5 > @@ -285,6 +285,23 @@ Thus the example command above could be written as: > .RB "$" " foobar \-i /dev/stdin \-o /dev/stdout ..." > .fi > .in > +.TP > +.IR /proc/[pid]/map_files/ " (since kernel 3.3) > +This subdirectory contains entries corresponding to memory mapped > +files (see > +.BR mmap (2)). > +Entries are named by memory region start and end pair, > +and are symbolic links to the corresponding files. > + > +Although these entries are present for memory regions that were > +mapped with > +.BR MAP_FILE > +flag, the way anonymous shared memory (regions created with > +.B MAP_ANON | MAP_SHARED > +flags) > +is implemented in Linux > +makes such regions also appear on this directory. In that case > +the target file would be the /dev/zero one. > .\" FIXME Describe /proc/[pid]/loginuid > .\" Added in 2.6.11; updating requires CAP_AUDIT_CONTROL > .\" CONFIG_AUDITSYSCALL -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Author of "The Linux Programming Interface"; http://man7.org/tlpi/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
