changes since v2: - patch 1: disallow reservations on partitions entirely and make it into a separate patch (hch) - patch 2: rebase to hch's series of converting fmode_t to blk_mode_t and execute permission check upon blk_mode_t (hch) changes since RFC: - only allow unprivileged reservations if the file descriptor is open for write (Christoph Hellwig) - refuse the unprivileged reservations on partitions (Christoph Hellwig) (maybe this checking shall also be done when CAP_SYS_ADMIN is set?) RFC: https://lore.kernel.org/all/20230609102122.118800-1-jefflexu@xxxxxxxxxxxxxxxxx/ v2: https://lore.kernel.org/all/20230612074103.4866-1-jefflexu@xxxxxxxxxxxxxxxxx/ Jingbo Xu (2): block: disallow Persistent Reservation on partitions block: fine-granular CAP_SYS_ADMIN for Persistent Reservation block/ioctl.c | 47 +++++++++++++++++++++++++++++++---------------- 1 file changed, 31 insertions(+), 16 deletions(-) -- 2.19.1.6.gb485710b