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| author | Sagi Grimberg <sagig@mellanox.com> | 2014-02-19 17:50:14 +0200 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-03-13 12:03:02 -0700 |
| commit | acb2bde3e32100f1ab50e38f0db03660a1cb0a06 (patch) | |
| tree | 086cdc7707bbefab093d6e5ee763b9070d1707be | |
| parent | 1e3ab99da66312f503b3b28c98173168008a8605 (diff) | |
| download | blackbird-op-linux-acb2bde3e32100f1ab50e38f0db03660a1cb0a06.tar.gz blackbird-op-linux-acb2bde3e32100f1ab50e38f0db03660a1cb0a06.zip | |
Target/transport: Allocate protection sg if needed
In case protection information is involved, allocate
protection SG-list for transport.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/target_core_transport.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 2956250b7225..6ddd4cfc53ba 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2039,6 +2039,10 @@ static inline void transport_free_pages(struct se_cmd *cmd) transport_free_sgl(cmd->t_bidi_data_sg, cmd->t_bidi_data_nents); cmd->t_bidi_data_sg = NULL; cmd->t_bidi_data_nents = 0; + + transport_free_sgl(cmd->t_prot_sg, cmd->t_prot_nents); + cmd->t_prot_sg = NULL; + cmd->t_prot_nents = 0; } /** @@ -2202,6 +2206,14 @@ transport_generic_new_cmd(struct se_cmd *cmd) return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; } + if (cmd->prot_type != TARGET_PROT_NORMAL) { + ret = target_alloc_sgl(&cmd->t_prot_sg, + &cmd->t_prot_nents, + cmd->prot_length, true); + if (ret < 0) + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } + ret = target_alloc_sgl(&cmd->t_data_sg, &cmd->t_data_nents, cmd->data_length, zero_flag); if (ret < 0) |
