[PATCH 0/7] /proc/kcore improvements

[Omar Sandoval <osandov@osandov.com>]

From: Omar Sandoval <osandov@fb.com>

Hi,

This series makes a few improvements to /proc/kcore. Patches 1 and 2 are
prep patches. Patch 3 is a fix/cleanup. Patch 4 is another prep patch.
Patches 5 and 6 are optimizations to ->read(). Patch 7 adds vmcoreinfo
to /proc/kcore. This series is based on v4.18-rc3. Please consider it
for v4.19.

Thanks!

Omar Sandoval (7):
  proc/kcore: don't grab lock for kclist_add()
  proc/kcore: replace kclist_lock rwlock with rwsem
  proc/kcore: fix memory hotplug vs multiple opens race
  proc/kcore: hold lock during read
  proc/kcore: clean up ELF header generation
  proc/kcore: optimize multiple page reads
  proc/kcore: add vmcoreinfo note to /proc/kcore

 fs/proc/Kconfig            |   1 +
 fs/proc/kcore.c            | 524 +++++++++++++++++--------------------
 include/linux/crash_core.h |   2 +
 kernel/crash_core.c        |   4 +-
 4 files changed, 241 insertions(+), 290 deletions(-)

-- 
2.18.0