drivers/target/iscsi/iscsi_target_transport.c
Source file repositories/reference/linux-study-clean/drivers/target/iscsi/iscsi_target_transport.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/target/iscsi/iscsi_target_transport.c- Extension
.c- Size
- 1253 bytes
- Lines
- 55
- Domain
- Driver Families
- Bucket
- drivers/target
- Inferred role
- Driver Families: exported/initcall integration point
- Status
- integration implementation candidate
Why This File Exists
Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
- Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
- Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/spinlock.hlinux/list.hlinux/module.htarget/iscsi/iscsi_transport.h
Detected Declarations
function iscsit_put_transportfunction iscsit_register_transportfunction iscsit_unregister_transportexport iscsit_register_transportexport iscsit_unregister_transport
Annotated Snippet
if (t->transport_type == type) {
if (t->owner && !try_module_get(t->owner)) {
t = NULL;
}
mutex_unlock(&transport_mutex);
return t;
}
}
mutex_unlock(&transport_mutex);
return NULL;
}
void iscsit_put_transport(struct iscsit_transport *t)
{
module_put(t->owner);
}
void iscsit_register_transport(struct iscsit_transport *t)
{
INIT_LIST_HEAD(&t->t_node);
mutex_lock(&transport_mutex);
list_add_tail(&t->t_node, &g_transport_list);
mutex_unlock(&transport_mutex);
pr_debug("Registered iSCSI transport: %s\n", t->name);
}
EXPORT_SYMBOL(iscsit_register_transport);
void iscsit_unregister_transport(struct iscsit_transport *t)
{
mutex_lock(&transport_mutex);
list_del(&t->t_node);
mutex_unlock(&transport_mutex);
pr_debug("Unregistered iSCSI transport: %s\n", t->name);
}
EXPORT_SYMBOL(iscsit_unregister_transport);
Annotation
- Immediate include surface: `linux/spinlock.h`, `linux/list.h`, `linux/module.h`, `target/iscsi/iscsi_transport.h`.
- Detected declarations: `function iscsit_put_transport`, `function iscsit_register_transport`, `function iscsit_unregister_transport`, `export iscsit_register_transport`, `export iscsit_unregister_transport`.
- Atlas domain: Driver Families / drivers/target.
- Implementation status: integration implementation candidate.
- Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.