Messages in this thread | | | Date | Thu, 01 Sep 2011 19:04:42 -0700 | From | Nicholas Miell <> | Subject | Re: [patch 2/2] fs, proc: Introduce the /proc/<pid>/map_files/ directory v6 |
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On 09/01/2011 06:58 PM, Tejun Heo wrote: > On Thu, Sep 01, 2011 at 06:54:32PM -0700, Nicholas Miell wrote: >> This doesn't seem to fully export all the information passed to mmap(2) >> -- it encompasses the addr, size, fd and (assuming the generated >> symlink's permissions are accurate) prot parameters, but does nothing to >> export the flags or offset parameters. > > It looks like, > > /proc/*/fd : fdinfo ~= map_files : maps >
So are the filenames in /proc/$PID/map_files/ guaranteed to be identical to the first field (first two fields? the part before the first space) in /proc/$PID/maps?
When I open a file in /proc/$PID/map_files/, is offset 0 the start of the file on disk or is it the first byte of the mapping?
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