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23b3b6f0b5
The __u32 len field cannot represent a 4GB buffer (0x100000000 overflows to 0). Change it to __u64 so buffers up to 4GB can be registered. Add a reserved field for alignment and validate it is zero. The kernel enforces a default max of 4GB (UBLK_SHMEM_BUF_SIZE_MAX) which may be increased in future. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Link: https://patch.msgid.link/20260409133020.3780098-2-tom.leiming@gmail.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
826 lines
26 KiB
826 lines
26 KiB