From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Testing in_interrupt() to know when sleeping is allowed is not really
reliable (since eg it won't be true if the caller is holding a spinlock).
Instead have the caller tell core_tmr_alloc_req() what GFP_xxx to use;
every caller except tcm_qla2xxx can use GFP_KERNEL.
Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target_util.c | 3 ++-
drivers/target/loopback/tcm_loop.c | 2 +-
drivers/target/target_core_tmr.c | 6 +++---
drivers/target/tcm_fc/tfc_cmd.c | 2 +-
include/target/target_core_tmr.h | 2 +-
5 files changed, 8 insertions(+), 7 deletions(-)
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index f00137f..c4be622 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -289,7 +289,8 @@ struct iscsi_cmd *iscsit_allocate_se_cmd_for_tmr(
}
se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd,
- (void *)cmd->tmr_req, tcm_function);
+ (void *)cmd->tmr_req, tcm_function,
+ GFP_KERNEL);
if (!se_cmd->se_tmr_req)
goto out;
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index f0e701d..5b870c3 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -366,7 +366,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
* Allocate the LUN_RESET TMR
*/
se_cmd->se_tmr_req = core_tmr_alloc_req(se_cmd, tl_tmr,
- TMR_LUN_RESET);
+ TMR_LUN_RESET, GFP_KERNEL);
if (IS_ERR(se_cmd->se_tmr_req))
goto release;
/*
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index d04cc10..efc5ec7 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -43,12 +43,12 @@
struct se_tmr_req *core_tmr_alloc_req(
struct se_cmd *se_cmd,
void *fabric_tmr_ptr,
- u8 function)
+ u8 function,
+ gfp_t gfp_flags)
{
struct se_tmr_req *tmr;
- tmr = kmem_cache_zalloc(se_tmr_req_cache, (in_interrupt()) ?
- GFP_ATOMIC : GFP_KERNEL);
+ tmr = kmem_cache_zalloc(se_tmr_req_cache, gfp_flags);
if (!tmr) {
pr_err("Unable to allocate struct se_tmr_req\n");
return ERR_PTR(-ENOMEM);
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 7f2ee5a..55a278e 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -396,7 +396,7 @@ static void ft_send_tm(struct ft_cmd *cmd)
}
pr_debug("alloc tm cmd fn %d\n", tm_func);
- tmr = core_tmr_alloc_req(&cmd->se_cmd, cmd, tm_func);
+ tmr = core_tmr_alloc_req(&cmd->se_cmd, cmd, tm_func, GFP_KERNEL);
if (!tmr) {
pr_debug("alloc failed\n");
ft_send_resp_code_and_free(cmd, FCP_TMF_FAILED);
diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h
index bd55968..d5876e1 100644
--- a/include/target/target_core_tmr.h
+++ b/include/target/target_core_tmr.h
@@ -27,7 +27,7 @@ enum tcm_tmrsp_table {
extern struct kmem_cache *se_tmr_req_cache;
-extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8);
+extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t);
extern void core_tmr_release_req(struct se_tmr_req *);
extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
struct list_head *, struct se_cmd *);
--
1.5.6.5
--
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