Re: [PATCH -mm v2] coredump: extend core dump note section to contain file names of mapped files

[Roland McGrath]

The code needs to be macroized a bit so that compat_binfmt_elf.c will
produce a version that encodes 32-bit values correctly so as to be
compatible with the output of a native 32-bit kernel.

It's doubtful that rolling your own single loop actually performs better
than just calling strlen and memcpy.

Since you're just counting to estimate the size of a temporary buffer,
you could skip the initial loop and just estimate based on mm->map_count.
Then collect the count in the main loop and write the first word of the
buffer last.


Thanks,
Roland
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