From: Omar Sandoval <osandov@xxxxxx> 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 (apparently I'm not the only one who wants this, see https://www.spinics.net/lists/arm-kernel/msg665103.html). I tested that the crash utility still works with this applied, and readelf is happy with it, as well. Andrew, since this didn't get any traction on the fsdevel side, and you're already carrying James' patch, could you take this through -mm? Thanks! Changes from v1: - Rebased onto v4.18-rc4 + James' patch (https://patchwork.kernel.org/patch/10519739/) in the mm tree - Fix spurious sparse warning (see the report and response in https://patchwork.kernel.org/patch/10512431/) 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 | 536 +++++++++++++++++-------------------- include/linux/crash_core.h | 2 + kernel/crash_core.c | 4 +- 4 files changed, 251 insertions(+), 292 deletions(-) -- 2.18.0
