AcoSail/kernel_optimize_test
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target: Add SCF_ACK_KREF flag for acknowledgement kref

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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 <roland@purestorage.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2012-02-13 01:07:22 -08:00
parent 2fbff1276b
commit 86715569d0
2 changed files with 5 additions and 2 deletions
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4
drivers/target/target_core_transport.c
View File

@ -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);

3
include/target/target_core_base.h
View File

@ -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 */