• Ross Zwisler's avatar
    coredump: add DAX filtering for ELF coredumps · 5037835c
    Ross Zwisler authored
    
    
    Add two new flags to the existing coredump mechanism for ELF files to
    allow us to explicitly filter DAX mappings.  This is desirable because
    DAX mappings, like hugetlb mappings, have the potential to be very
    large.
    
    Update the coredump_filter documentation in
    Documentation/filesystems/proc.txt so that it addresses the new DAX
    coredump flags.  Also update the documented default value of
    coredump_filter to be consistent with the core(5) man page.  The
    documentation being updated talks about bit 4, Dump ELF headers, which
    is enabled if CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is turned on in the
    kernel config.  This kernel config option defaults to "y" if both ELF
    binaries and coredump are enabled.
    Signed-off-by: default avatarRoss Zwisler <ross.zwisler@linux.intel.com>
    Acked-by: default avatarJeff Moyer <jmoyer@redhat.com>
    Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
    5037835c
proc.txt 84.9 KB