Match a key only if SARK is not zero according to SPC-4 and the comment above the code: If an all registrants persistent reservation is present and the SERVICE ACTION RESERVATION KEY field is set to zero, then all registrations shall be removed except for that of the I_T nexus that is being used for the PERSISTENT RESERVE OUT command; Without this patch in case of SARK==0 no registrants will be removed. Signed-off-by: Dmitry Bogdanov <d.bogdanov@xxxxxxxxx> --- drivers/target/target_core_pr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c index a1d67554709f..738ee7137462 100644 --- a/drivers/target/target_core_pr.c +++ b/drivers/target/target_core_pr.c @@ -3022,7 +3022,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key, if (calling_it_nexus) continue; - if (pr_reg->pr_res_key != sa_res_key) + if ((sa_res_key) && (pr_reg->pr_res_key != sa_res_key)) continue; pr_reg_nacl = pr_reg->pr_reg_nacl; -- 2.25.1
