• Sagi Grimberg's avatar
    target: Merge sbc_verify_dif_read|write · f75b6fae
    Sagi Grimberg authored
    Instead of providing DIF verify routines for read/write
    that are almost identical and conditionally copy protection
    information, just let the caller do the right thing.
    
    Have a single sbc_dif_verify that handles an sgl (that
    does NOT copy any data) and a protection information copy
    routine used by rd_mcp and fileio backend.
    
    In the WRITE case, call sbc_dif_verify with cmd->t_prot_sg
    and then do the copy from it to local sgl (assuming the verify
    succeeded of course). In the READ case, call sbc_dif_verify
    with the local sgl and if it succeeds, copy it to t_prot_sg (or
    not if we are stripping it).
    
    (Fix apply breakage from commit c8367778 - nab)
    Tested-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
    Signed-off-by: default avatarSagi Grimberg <sagig@mellanox.com>
    Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
    f75b6fae
target_core_transport.c 82.7 KB