Hi Pavel... Ping! Cheers, Michael On Thu, Feb 28, 2013 at 3:20 PM, Michael Kerrisk (man-pages) <mtk.manpages@xxxxxxxxx> wrote: > 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/ -- 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
