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The first approximation to update to 2.6.27 + minor fixes, particularly remove of unused variable and add full path to depmod in Makefiles. Partially done by Bart Van Assche <bart.vanassche@gmail.com>.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@529 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Vladislav Bolkhovitin
2008-10-21 11:51:52 +00:00
parent 66bc3f06a3
commit 1eeffbb3da
12 changed files with 451 additions and 14 deletions
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308
iscsi-scst/kernel/patches/put_page_callback-2.6.27.patch Normal file
View File

@@ -0,0 +1,308 @@
diff -upr linux-2.6.26/include/linux/mm_types.h linux-2.6.26/include/linux/mm_types.h
--- linux-2.6.26/include/linux/mm_types.h 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/include/linux/mm_types.h 2008-07-22 20:30:21.000000000 +0400
@@ -92,6 +92,18 @@ struct page {
void *virtual; /* Kernel virtual address (NULL if
not kmapped, ie. highmem) */
#endif /* WANT_PAGE_VIRTUAL */
+
+#if defined(CONFIG_TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION)
+ /*
+ * Used to implement support for notification on zero-copy TCP transfer
+ * completion. It might look as not good to have this field here and
+ * it's better to have it in struct sk_buff, but it would make the code
+ * much more complicated and fragile, since all skb then would have to
+ * contain only pages with the same value in this field.
+ */
+ void *net_priv;
+#endif
+
#ifdef CONFIG_CGROUP_MEM_RES_CTLR
unsigned long page_cgroup;
#endif
diff -upr linux-2.6.26/include/linux/net.h linux-2.6.26/include/linux/net.h
--- linux-2.6.26/include/linux/net.h 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/include/linux/net.h 2008-07-29 20:48:07.000000000 +0400
@@ -57,6 +57,7 @@ typedef enum {
#include <linux/random.h>
#include <linux/wait.h>
#include <linux/fcntl.h> /* For O_CLOEXEC and O_NONBLOCK */
+#include <linux/mm.h>
struct poll_table_struct;
struct pipe_inode_info;
@@ -354,5 +354,44 @@ extern int net_msg_cost;
extern struct ratelimit_state net_ratelimit_state;
#endif
+#if defined(CONFIG_TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION)
+/* Support for notification on zero-copy TCP transfer completion */
+typedef void (*net_get_page_callback_t)(struct page *page);
+typedef void (*net_put_page_callback_t)(struct page *page);
+
+extern net_get_page_callback_t net_get_page_callback;
+extern net_put_page_callback_t net_put_page_callback;
+
+extern int net_set_get_put_page_callbacks(
+ net_get_page_callback_t get_callback,
+ net_put_page_callback_t put_callback);
+
+/*
+ * See comment for net_set_get_put_page_callbacks() why those functions
+ * don't need any protection.
+ */
+static inline void net_get_page(struct page *page)
+{
+ if (page->net_priv != 0)
+ net_get_page_callback(page);
+ get_page(page);
+}
+static inline void net_put_page(struct page *page)
+{
+ if (page->net_priv != 0)
+ net_put_page_callback(page);
+ put_page(page);
+}
+#else
+static inline void net_get_page(struct page *page)
+{
+ get_page(page);
+}
+static inline void net_put_page(struct page *page)
+{
+ put_page(page);
+}
+#endif /* CONFIG_TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION */
+
#endif /* __KERNEL__ */
#endif /* _LINUX_NET_H */
diff -upr linux-2.6.26/net/core/skbuff.c linux-2.6.26/net/core/skbuff.c
--- linux-2.6.26/net/core/skbuff.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/core/skbuff.c 2008-07-22 20:28:41.000000000 +0400
@@ -319,7 +319,7 @@ static void skb_release_data(struct sk_b
if (skb_shinfo(skb)->nr_frags) {
int i;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
- put_page(skb_shinfo(skb)->frags[i].page);
+ net_put_page(skb_shinfo(skb)->frags[i].page);
}
if (skb_shinfo(skb)->frag_list)
@@ -658,7 +658,7 @@ struct sk_buff *pskb_copy(struct sk_buff
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
skb_shinfo(n)->frags[i] = skb_shinfo(skb)->frags[i];
- get_page(skb_shinfo(n)->frags[i].page);
+ net_get_page(skb_shinfo(n)->frags[i].page);
}
skb_shinfo(n)->nr_frags = i;
}
@@ -721,7 +721,7 @@ int pskb_expand_head(struct sk_buff *skb
sizeof(struct skb_shared_info));
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++)
- get_page(skb_shinfo(skb)->frags[i].page);
+ net_get_page(skb_shinfo(skb)->frags[i].page);
if (skb_shinfo(skb)->frag_list)
skb_clone_fraglist(skb);
@@ -990,7 +990,7 @@ drop_pages:
skb_shinfo(skb)->nr_frags = i;
for (; i < nfrags; i++)
- put_page(skb_shinfo(skb)->frags[i].page);
+ net_put_page(skb_shinfo(skb)->frags[i].page);
if (skb_shinfo(skb)->frag_list)
skb_drop_fraglist(skb);
@@ -1159,7 +1159,7 @@ pull_pages:
k = 0;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
if (skb_shinfo(skb)->frags[i].size <= eat) {
- put_page(skb_shinfo(skb)->frags[i].page);
+ net_put_page(skb_shinfo(skb)->frags[i].page);
eat -= skb_shinfo(skb)->frags[i].size;
} else {
skb_shinfo(skb)->frags[k] = skb_shinfo(skb)->frags[i];
@@ -1916,7 +1916,7 @@ static inline void skb_split_no_header(s
* where splitting is expensive.
* 2. Split is accurately. We make this.
*/
- get_page(skb_shinfo(skb)->frags[i].page);
+ net_get_page(skb_shinfo(skb)->frags[i].page);
skb_shinfo(skb1)->frags[0].page_offset += len - pos;
skb_shinfo(skb1)->frags[0].size -= len - pos;
skb_shinfo(skb)->frags[i].size = len - pos;
@@ -2284,7 +2284,7 @@ struct sk_buff *skb_segment(struct sk_bu
BUG_ON(i >= nfrags);
*frag = skb_shinfo(skb)->frags[i];
- get_page(frag->page);
+ net_get_page(frag->page);
size = frag->size;
if (pos < offset) {
diff -upr linux-2.6.26/net/ipv4/ip_output.c linux-2.6.26/net/ipv4/ip_output.c
--- linux-2.6.26/net/ipv4/ip_output.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/ipv4/ip_output.c 2008-07-22 20:28:41.000000000 +0400
@@ -1007,7 +1007,7 @@ alloc_new_skb:
err = -EMSGSIZE;
goto error;
}
- get_page(page);
+ net_get_page(page);
skb_fill_page_desc(skb, i, page, sk->sk_sndmsg_off, 0);
frag = &skb_shinfo(skb)->frags[i];
}
@@ -1165,7 +1165,7 @@ ssize_t ip_append_page(struct sock *sk,
if (skb_can_coalesce(skb, i, page, offset)) {
skb_shinfo(skb)->frags[i-1].size += len;
} else if (i < MAX_SKB_FRAGS) {
- get_page(page);
+ net_get_page(page);
skb_fill_page_desc(skb, i, page, offset, len);
} else {
err = -EMSGSIZE;
diff -upr linux-2.6.26/net/ipv4/Makefile linux-2.6.26/net/ipv4/Makefile
--- linux-2.6.26/net/ipv4/Makefile 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/ipv4/Makefile 2008-07-22 20:35:05.000000000 +0400
@@ -50,6 +50,7 @@ obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o
obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o
obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o
obj-$(CONFIG_NETLABEL) += cipso_ipv4.o
+obj-$(CONFIG_TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION) += tcp_zero_copy.o
obj-$(CONFIG_XFRM) += xfrm4_policy.o xfrm4_state.o xfrm4_input.o \
xfrm4_output.o
diff -upr linux-2.6.26/net/ipv4/tcp.c linux-2.6.26/net/ipv4/tcp.c
--- linux-2.6.26/net/ipv4/tcp.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/ipv4/tcp.c 2008-07-22 20:28:41.000000000 +0400
@@ -712,7 +712,7 @@ new_segment:
if (can_coalesce) {
skb_shinfo(skb)->frags[i - 1].size += copy;
} else {
- get_page(page);
+ net_get_page(page);
skb_fill_page_desc(skb, i, page, offset, copy);
}
@@ -917,7 +917,7 @@ new_segment:
goto new_segment;
} else if (page) {
if (off == PAGE_SIZE) {
- put_page(page);
+ net_put_page(page);
TCP_PAGE(sk) = page = NULL;
off = 0;
}
@@ -958,9 +958,9 @@ new_segment:
} else {
skb_fill_page_desc(skb, i, page, off, copy);
if (TCP_PAGE(sk)) {
- get_page(page);
+ net_get_page(page);
} else if (off + copy < PAGE_SIZE) {
- get_page(page);
+ net_get_page(page);
TCP_PAGE(sk) = page;
}
}
diff -upr linux-2.6.26/net/ipv4/tcp_output.c linux-2.6.26/net/ipv4/tcp_output.c
--- linux-2.6.26/net/ipv4/tcp_output.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/ipv4/tcp_output.c 2008-07-22 20:28:41.000000000 +0400
@@ -854,7 +854,7 @@ static void __pskb_trim_head(struct sk_b
k = 0;
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
if (skb_shinfo(skb)->frags[i].size <= eat) {
- put_page(skb_shinfo(skb)->frags[i].page);
+ net_put_page(skb_shinfo(skb)->frags[i].page);
eat -= skb_shinfo(skb)->frags[i].size;
} else {
skb_shinfo(skb)->frags[k] = skb_shinfo(skb)->frags[i];
diff -upr linux-2.6.26/net/ipv4/tcp_zero_copy.c linux-2.6.26/net/ipv4/tcp_zero_copy.c
--- linux-2.6.26/net/ipv4/tcp_zero_copy.c 2008-07-22 20:12:35.000000000 +0400
+++ linux-2.6.26/net/ipv4/tcp_zero_copy.c 2008-07-31 21:21:13.000000000 +0400
@@ -0,0 +1,49 @@
+/*
+ * Support routines for TCP zero copy transmit
+ *
+ * Created by Vladislav Bolkhovitin
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/skbuff.h>
+
+net_get_page_callback_t net_get_page_callback __read_mostly;
+EXPORT_SYMBOL(net_get_page_callback);
+
+net_put_page_callback_t net_put_page_callback __read_mostly;
+EXPORT_SYMBOL(net_put_page_callback);
+
+/*
+ * Caller of this function must ensure that at the moment when it's called
+ * there are no pages in the system with net_priv field set to non-zero
+ * value. Hence, this function, as well as net_get_page() and net_put_page(),
+ * don't need any protection.
+ */
+int net_set_get_put_page_callbacks(
+ net_get_page_callback_t get_callback,
+ net_put_page_callback_t put_callback)
+{
+ int res = 0;
+
+ if ((net_get_page_callback != NULL) && (get_callback != NULL) &&
+ (net_get_page_callback != get_callback)) {
+ res = -EBUSY;
+ goto out;
+ }
+
+ if ((net_put_page_callback != NULL) && (put_callback != NULL) &&
+ (net_put_page_callback != put_callback)) {
+ res = -EBUSY;
+ goto out;
+ }
+
+ net_get_page_callback = get_callback;
+ net_put_page_callback = put_callback;
+
+out:
+ return res;
+}
+EXPORT_SYMBOL(net_set_get_put_page_callbacks);
diff -upr linux-2.6.26/net/ipv6/ip6_output.c linux-2.6.26/net/ipv6/ip6_output.c
--- linux-2.6.26/net/ipv6/ip6_output.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/ipv6/ip6_output.c 2008-07-22 20:28:41.000000000 +0400
@@ -1349,7 +1349,7 @@ alloc_new_skb:
err = -EMSGSIZE;
goto error;
}
- get_page(page);
+ net_get_page(page);
skb_fill_page_desc(skb, i, page, sk->sk_sndmsg_off, 0);
frag = &skb_shinfo(skb)->frags[i];
}
diff -upr linux-2.6.26/net/Kconfig linux-2.6.26/net/Kconfig
--- linux-2.6.26/net/Kconfig 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/net/Kconfig 2008-07-29 21:15:39.000000000 +0400
@@ -59,6 +59,18 @@ config INET
Short answer: say Y.
+config TCP_ZERO_COPY_TRANSFER_COMPLETION_NOTIFICATION
+ bool "TCP/IP zero-copy transfer completion notification"
+ depends on INET
+ default SCST_ISCSI
+ ---help---
+ Adds support for sending a notification upon completion of a
+ zero-copy TCP/IP transfer. This can speed up certain TCP/IP
+ software. Currently this is only used by the iSCSI target driver
+ iSCSI-SCST.
+
+ If unsure, say N.
+
if INET
source "net/ipv4/Kconfig"
source "net/ipv6/Kconfig"

2
mpt/Makefile
View File

@@ -58,7 +58,7 @@ tgt: Modules.symvers Module.symvers
install: all
$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m \
modules_install
-depmod -a
-/sbin/depmod -a
SCST_MOD_VERS := $(shell ls $(SCST_DIR)/Modules.symvers 2>/dev/null)
ifneq ($(SCST_MOD_VERS),)

2
qla2x00t/qla2x00-target/Makefile
View File

@@ -67,7 +67,7 @@ tgt: Modules.symvers Module.symvers
install: all
$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m \
modules_install
-depmod -a $(KVER)
-/sbin/depmod -a $(KVER)
SCST_MOD_VERS := $(shell ls $(SCST_DIR)/Modules.symvers 2>/dev/null)
ifneq ($(SCST_MOD_VERS),)

4
scst/include/scst.h
View File

@@ -51,10 +51,6 @@ typedef _Bool bool;
#define false 0
#endif
#ifndef DECLARE_MUTEX_LOCKED
#define DECLARE_MUTEX_LOCKED(name) __DECLARE_SEMAPHORE_GENERIC(name, 0)
#endif
#define SCST_LOCAL_NAME "scst_lcl_drvr"
/*************************************************************

12
scst/kernel/in-tree/Kconfig.drivers.Linux-2.6.27.patch Normal file
View File

@@ -0,0 +1,12 @@
diff -upkr -X linux-2.6.26/Documentation/dontdiff linux-2.6.26/drivers/Kconfig linux-2.6.26/drivers/Kconfig
--- linux-2.6.26/drivers/Kconfig 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/drivers/Kconfig 2008-07-24 14:14:46.000000000 +0400
@@ -24,6 +24,8 @@ source "drivers/ide/Kconfig"
source "drivers/scsi/Kconfig"
+source "drivers/scst/Kconfig"
+
source "drivers/ata/Kconfig"
source "drivers/md/Kconfig"

11
scst/kernel/in-tree/Makefile.drivers.Linux-2.6.27.patch Normal file
View File

@@ -0,0 +1,11 @@
diff -upkr -X linux-2.6.26/Documentation/dontdiff linux-2.6.26/drivers/Makefile linux-2.6.26/drivers/Makefile
--- linux-2.6.26/drivers/Makefile 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/drivers/Makefile 2008-07-24 14:15:29.000000000 +0400
@@ -39,6 +39,7 @@ obj-$(CONFIG_ATM) += atm/
obj-y += macintosh/
obj-$(CONFIG_IDE) += ide/
obj-$(CONFIG_SCSI) += scsi/
+obj-$(CONFIG_SCST) += scst/
obj-$(CONFIG_ATA) += ata/
obj-$(CONFIG_FUSION) += message/
obj-$(CONFIG_FIREWIRE) += firewire/

112
scst/kernel/scst_exec_req_fifo-2.6.27.patch Normal file
View File

@@ -0,0 +1,112 @@
diff -upr linux-2.6.26/drivers/scsi/scsi_lib.c linux-2.6.26/drivers/scsi/scsi_lib.c
--- linux-2.6.26/drivers/scsi/scsi_lib.c 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/drivers/scsi/scsi_lib.c 2008-07-31 21:20:00.000000000 +0400
@@ -372,7 +372,7 @@ free_bios:
}
/**
- * scsi_execute_async - insert request
+ * __scsi_execute_async - insert request
* @sdev: scsi device
* @cmd: scsi command
* @cmd_len: length of scsi cdb
@@ -385,11 +385,14 @@ free_bios:
* @privdata: data passed to done()
* @done: callback function when done
* @gfp: memory allocation flags
+ * @at_head: insert request at head or tail of queue
*/
-int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
+static inline int __scsi_execute_async(struct scsi_device *sdev,
+ const unsigned char *cmd,
int cmd_len, int data_direction, void *buffer, unsigned bufflen,
int use_sg, int timeout, int retries, void *privdata,
- void (*done)(void *, char *, int, int), gfp_t gfp)
+ void (*done)(void *, char *, int, int), gfp_t gfp,
+ int at_head)
{
struct request *req;
struct scsi_io_context *sioc;
@@ -426,7 +429,7 @@ int scsi_execute_async(struct scsi_devic
sioc->data = privdata;
sioc->done = done;
- blk_execute_rq_nowait(req->q, NULL, req, 1, scsi_end_async);
+ blk_execute_rq_nowait(req->q, NULL, req, at_head, scsi_end_async);
return 0;
free_req:
@@ -435,8 +438,55 @@ free_sense:
kmem_cache_free(scsi_io_context_cache, sioc);
return DRIVER_ERROR << 24;
}
+
+/**
+ * scsi_execute_async - insert request
+ * @sdev: scsi device
+ * @cmd: scsi command
+ * @cmd_len: length of scsi cdb
+ * @data_direction: data direction
+ * @buffer: data buffer (this can be a kernel buffer or scatterlist)
+ * @bufflen: len of buffer
+ * @use_sg: if buffer is a scatterlist this is the number of elements
+ * @timeout: request timeout in seconds
+ * @retries: number of times to retry request
+ * @flags: or into request flags
+ **/
+int scsi_execute_async(struct scsi_device *sdev, const unsigned char *cmd,
+ int cmd_len, int data_direction, void *buffer,
+ unsigned bufflen, int use_sg, int timeout,
+ int retries, void *privdata,
+ void (*done)(void *, char *, int, int), gfp_t gfp)
+{
+ return __scsi_execute_async(sdev, cmd, cmd_len, data_direction, buffer,
+ bufflen, use_sg, timeout, retries, privdata, done, gfp, 1);
+}
EXPORT_SYMBOL_GPL(scsi_execute_async);
+/**
+ * scsi_execute_async_fifo - insert request at tail, in FIFO order
+ * @sdev: scsi device
+ * @cmd: scsi command
+ * @cmd_len: length of scsi cdb
+ * @data_direction: data direction
+ * @buffer: data buffer (this can be a kernel buffer or scatterlist)
+ * @bufflen: len of buffer
+ * @use_sg: if buffer is a scatterlist this is the number of elements
+ * @timeout: request timeout in seconds
+ * @retries: number of times to retry request
+ * @flags: or into request flags
+ **/
+int scsi_execute_async_fifo(struct scsi_device *sdev, const unsigned char *cmd,
+ int cmd_len, int data_direction, void *buffer,
+ unsigned bufflen, int use_sg, int timeout, int retries,
+ void *privdata,
+ void (*done)(void *, char *, int, int), gfp_t gfp)
+{
+ return __scsi_execute_async(sdev, cmd, cmd_len, data_direction, buffer,
+ bufflen, use_sg, timeout, retries, privdata, done, gfp, 0);
+}
+EXPORT_SYMBOL_GPL(scsi_execute_async_fifo);
+
/*
* Function: scsi_init_cmd_errh()
*
diff -upr linux-2.6.26/include/scsi/scsi_device.h linux-2.6.26/include/scsi/scsi_device.h
--- linux-2.6.26/include/scsi/scsi_device.h 2008-07-14 01:51:29.000000000 +0400
+++ linux-2.6.26/include/scsi/scsi_device.h 2008-07-31 21:20:39.000000000 +0400
@@ -365,6 +365,14 @@ extern int scsi_execute_async(struct scs
int timeout, int retries, void *privdata,
void (*done)(void *, char *, int, int),
gfp_t gfp);
+#define SCSI_EXEC_REQ_FIFO_DEFINED
+extern int scsi_execute_async_fifo(struct scsi_device *sdev,
+ const unsigned char *cmd, int cmd_len,
+ int data_direction, void *buffer,
+ unsigned bufflen, int use_sg,
+ int timeout, int retries, void *privdata,
+ void (*done)(void *, char *, int, int),
+ gfp_t gfp);
static inline int __must_check scsi_device_reprobe(struct scsi_device *sdev)
{

2
scst/src/Makefile
View File

@@ -82,7 +82,7 @@ ifneq ($(MOD_VERS),)
rm -f $(INSTALL_DIR_H)/Modules.symvers
install -m 644 Module.symvers $(INSTALL_DIR_H)
endif
-depmod -a $(KVER)
-/sbin/depmod -a $(KVER)
@echo "****************************************************************"
@echo "*!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*"
@echo "*!! !!*"

2
scst/src/dev_handlers/Makefile
View File

@@ -55,7 +55,7 @@ all:
install: all
$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) \
modules_install
-depmod -a $(KVER)
-/sbin/depmod -a $(KVER)
uninstall:
rm -f $(INSTALL_DIR)/scst_*.ko

3
scst/src/dev_handlers/scst_user.c
View File

@@ -2978,6 +2978,9 @@ static int __init init_scst_user(void)
}
#else
dev = device_create(dev_user_sysfs_class, NULL, MKDEV(DEV_USER_MAJOR, 0),
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
NULL,
#endif
DEV_USER_NAME);
if (IS_ERR(dev)) {
res = PTR_ERR(dev);

5
scst/src/scst_main.c
View File

@@ -1847,11 +1847,6 @@ out_destroy_mgmt_cache:
static void __exit exit_scst(void)
{
#ifdef CONFIG_LOCKDEP
static /* To hide the lockdep's warning about non-static key */
#endif
DECLARE_MUTEX_LOCKED(shm);
TRACE_ENTRY();
/* ToDo: unregister_cpu_notifier() */

2
scst_local/Makefile
View File

@@ -35,7 +35,7 @@ tgt: Modules.symvers Module.symvers
install: all scst_local.ko
$(MAKE) -C $(KDIR) SUBDIRS=$(shell pwd) BUILD_INI=m \
modules_install
-depmod -a
-/sbin/depmod -aq $(KVER)
SCST_MOD_VERS := $(shell ls $(SCST_DIR)/Modules.symvers 2>/dev/null)
ifneq ($(SCST_MOD_VERS),)