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authorLinus Torvalds <torvalds@linux-foundation.org>2016-04-14 11:18:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-04-14 12:55:32 -0700
commit4046d6e81f33b7ef50d6668b78076d54c5e066b6 (patch)
tree82e71d01a1deffd840e034c19f9c5bc4d8495c63 /fs/seq_file.c
parent90de6800c240dfe089e254116a7c055e70b709fd (diff)
downloadlwn-4046d6e81f33b7ef50d6668b78076d54c5e066b6.tar.gz
lwn-4046d6e81f33b7ef50d6668b78076d54c5e066b6.zip
Revert "x86: remove the kernel code/data/bss resources from /proc/iomem"
This reverts commit c4004b02f8e5b9ce357a0bb1641756cc86962664. Sadly, my hope that nobody would actually use the special kernel entries in /proc/iomem were dashed by kexec. Which reads /proc/iomem explicitly to find the kernel base address. Nasty. Anyway, that means we can't do the sane and simple thing and just remove the entries, and we'll instead have to mask them out based on permissions. Reported-by: Zhengyu Zhang <zhezhang@redhat.com> Reported-by: Dave Young <dyoung@redhat.com> Reported-by: Freeman Zhang <freeman.zhang1992@gmail.com> Reported-by: Emrah Demir <ed@abdsec.com> Reported-by: Baoquan He <bhe@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/seq_file.c')
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