From: Nicholas Bellinger Date: Mon, 13 Feb 2012 09:07:22 +0000 (-0800) Subject: target: Add SCF_ACK_KREF flag for acknowledgement kref X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=86715569d085addc635c2b55ee8acb79d3a7fbbf;p=openwrt%2Fstaging%2Fblogic.git target: Add SCF_ACK_KREF flag for acknowledgement kref When TARGET_SCF_ACK_KREF is in use with target_submit_cmd() for setting the extra acknowledgement reference to se_cmd->cmd_kref, go ahead and set SCF_ACK_KREF in order to be used later by abort task. Reported-by: Roland Dreier Cc: Christoph Hellwig Signed-off-by: Nicholas Bellinger --- diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 35bae7dd670a..c6b8b8233399 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -4030,8 +4030,10 @@ void target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd, * fabric acknowledgement that requires two target_put_sess_cmd() * invocations before se_cmd descriptor release. */ - if (ack_kref == true) + if (ack_kref == true) { kref_get(&se_cmd->cmd_kref); + se_cmd->se_cmd_flags |= SCF_ACK_KREF; + } spin_lock_irqsave(&se_sess->sess_cmd_lock, flags); list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 9d514e06625f..bbcf803e0916 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -184,7 +184,8 @@ enum se_cmd_flags_table { SCF_ALUA_NON_OPTIMIZED = 0x00040000, SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000, SCF_UNUSED = 0x00100000, - SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000, + SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00200000, + SCF_ACK_KREF = 0x00400000, }; /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */