From: Andrii Nakryiko Date: Thu, 17 Nov 2022 23:46:06 +0000 (-0800) Subject: Merge branch 'libbpf: Fixes for ring buffer' X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6f04180ca64b6cd5e404951bd042a1852f0598f1;p=linux.git Merge branch 'libbpf: Fixes for ring buffer' Hou Tao says: ==================== From: Hou Tao Hi, The patch set tries to fix the problems found when testing ringbuf by using 4KB and 2GB size. Patch 1 fixes the probe of ring buffer map on host with 64KB page (e.g., an ARM64 host). Patch 2 & 3 fix the overflow of length when mmaping 2GB kernel ringbuf or user ringbuf on libbpf. Patch 4 just reject the reservation with invalid size. Please see individual patch for details. And comments are always welcome. Change Log: v2: * patch 1: use page size instead of adjust_ringbuf_sz(4096) as main_entries (suggested by Stanislav) * patch 2 & 3: use "mmap_sz" instead of "ro_size/wr_size" as name of mmap length (From Andrii) v1: https://lore.kernel.org/bpf/20221111092642.2333724-1-houtao@huaweicloud.com ==================== Signed-off-by: Andrii Nakryiko --- 6f04180ca64b6cd5e404951bd042a1852f0598f1