Messages in this thread | | | From | Mel Gorman <> | Subject | [PATCH 0/2] Report the size of pages backing VMAs in /proc V3 | Date | Thu, 16 Oct 2008 16:58:33 +0100 |
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The following two patches add support for printing the size of pages used by the kernel and the MMU to back VMAs. This can be used by a user to verify that a hugepage-aware application is using the expected page sizes.
The first patch prints the size of page used by the kernel when allocating pages for a VMA in /proc/pid/smaps. The second patch reports on the size of page used by the MMU as it can differ - for example on POWER using 64K as a base pagesize on older processors.
Changelog since V2 o Drop changes to /proc/pid/maps - could not get agreement and it affects procps. Patch to procps was posted but fell into silence. Dropping patch as smaps gives the necessary information, just with a bit more legwork by the user o Drop redundant VM_BUG_ON (Alexey)
Changelog since V1 o Fix build failure on !CONFIG_HUGETLB_PAGE o Uninline helper functions o Distinguish between base pagesize and MMU pagesize
arch/powerpc/include/asm/hugetlb.h | 6 ++++++ arch/powerpc/mm/hugetlbpage.c | 7 +++++++ fs/proc/task_mmu.c | 8 ++++++-- include/linux/hugetlb.h | 6 ++++++ mm/hugetlb.c | 29 +++++++++++++++++++++++++++++ 5 files changed, 54 insertions(+), 2 deletions(-)
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