Let all alua functions take "const struct path *" as first
argument.
Signed-off-by: Martin Wilck <mwilck@xxxxxxxx>
---
libmultipath/discovery.c | 4 ++--
libmultipath/prioritizers/alua.c | 4 ++--
libmultipath/prioritizers/alua_rtpg.c | 28 +++++++++++++++++----------
libmultipath/prioritizers/alua_rtpg.h | 7 ++++---
libmultipath/propsel.c | 2 +-
5 files changed, 27 insertions(+), 18 deletions(-)
diff --git a/libmultipath/discovery.c b/libmultipath/discovery.c
index 65d651d4..6b4a420b 100644
--- a/libmultipath/discovery.c
+++ b/libmultipath/discovery.c
@@ -839,12 +839,12 @@ detect_alua(struct path * pp, struct config *conf)
int tpgs;
unsigned int timeout = conf->checker_timeout;
- if ((tpgs = get_target_port_group_support(pp->fd, timeout)) <= 0) {
+ if ((tpgs = get_target_port_group_support(pp, timeout)) <= 0) {
pp->tpgs = TPGS_NONE;
return;
}
ret = get_target_port_group(pp, timeout);
- if (ret < 0 || get_asymmetric_access_state(pp->fd, ret, timeout) < 0) {
+ if (ret < 0 || get_asymmetric_access_state(pp, ret, timeout) < 0) {
pp->tpgs = TPGS_NONE;
return;
}
diff --git a/libmultipath/prioritizers/alua.c b/libmultipath/prioritizers/alua.c
index b24e2d48..0ab06e2b 100644
--- a/libmultipath/prioritizers/alua.c
+++ b/libmultipath/prioritizers/alua.c
@@ -58,7 +58,7 @@ get_alua_info(struct path * pp, unsigned int timeout)
tpg = get_target_port_group(pp, timeout);
if (tpg < 0) {
- rc = get_target_port_group_support(pp->fd, timeout);
+ rc = get_target_port_group_support(pp, timeout);
if (rc < 0)
return -ALUA_PRIO_TPGS_FAILED;
if (rc == TPGS_NONE)
@@ -66,7 +66,7 @@ get_alua_info(struct path * pp, unsigned int timeout)
return -ALUA_PRIO_RTPG_FAILED;
}
condlog(3, "%s: reported target port group is %i", pp->dev, tpg);
- rc = get_asymmetric_access_state(pp->fd, tpg, timeout);
+ rc = get_asymmetric_access_state(pp, tpg, timeout);
if (rc < 0) {
condlog(2, "%s: get_asymmetric_access_state returned %d",
__func__, rc);
diff --git a/libmultipath/prioritizers/alua_rtpg.c b/libmultipath/prioritizers/alua_rtpg.c
index 811ce7a2..d9215a88 100644
--- a/libmultipath/prioritizers/alua_rtpg.c
+++ b/libmultipath/prioritizers/alua_rtpg.c
@@ -135,9 +135,9 @@ scsi_error(struct sg_io_hdr *hdr, int opcode)
/*
* Helper function to setup and run a SCSI inquiry command.
*/
-int
-do_inquiry(int fd, int evpd, unsigned int codepage,
- void *resp, int resplen, unsigned int timeout)
+static int
+do_inquiry_sg(int fd, int evpd, unsigned int codepage,
+ void *resp, int resplen, unsigned int timeout)
{
struct inquiry_command cmd;
struct sg_io_hdr hdr;
@@ -185,18 +185,24 @@ retry:
return 0;
}
+int do_inquiry(const struct path *pp, int evpd, unsigned int codepage,
+ void *resp, int resplen, unsigned int timeout)
+{
+ return do_inquiry_sg(pp->fd, evpd, codepage, resp, resplen, timeout);
+}
+
/*
* This function returns the support for target port groups by evaluating the
* data returned by the standard inquiry command.
*/
int
-get_target_port_group_support(int fd, unsigned int timeout)
+get_target_port_group_support(const struct path *pp, unsigned int timeout)
{
struct inquiry_data inq;
int rc;
memset((unsigned char *)&inq, 0, sizeof(inq));
- rc = do_inquiry(fd, 0, 0x00, &inq, sizeof(inq), timeout);
+ rc = do_inquiry(pp, 0, 0x00, &inq, sizeof(inq), timeout);
if (!rc) {
rc = inquiry_data_get_tpgs(&inq);
}
@@ -205,7 +211,7 @@ get_target_port_group_support(int fd, unsigned int timeout)
}
static int
-get_sysfs_pg83(struct path *pp, unsigned char *buff, int buflen)
+get_sysfs_pg83(const struct path *pp, unsigned char *buff, int buflen)
{
struct udev_device *parent = pp->udev;
@@ -224,7 +230,7 @@ get_sysfs_pg83(struct path *pp, unsigned char *buff, int buflen)
}
int
-get_target_port_group(struct path * pp, unsigned int timeout)
+get_target_port_group(const struct path * pp, unsigned int timeout)
{
unsigned char *buf;
struct vpd83_data * vpd83;
@@ -245,7 +251,7 @@ get_target_port_group(struct path * pp, unsigned int timeout)
rc = get_sysfs_pg83(pp, buf, buflen);
if (rc < 0) {
- rc = do_inquiry(pp->fd, 1, 0x83, buf, buflen, timeout);
+ rc = do_inquiry(pp, 1, 0x83, buf, buflen, timeout);
if (rc < 0)
goto out;
@@ -263,7 +269,7 @@ get_target_port_group(struct path * pp, unsigned int timeout)
}
buflen = scsi_buflen;
memset(buf, 0, buflen);
- rc = do_inquiry(pp->fd, 1, 0x83, buf, buflen, timeout);
+ rc = do_inquiry(pp, 1, 0x83, buf, buflen, timeout);
if (rc < 0)
goto out;
}
@@ -341,7 +347,8 @@ retry:
}
int
-get_asymmetric_access_state(int fd, unsigned int tpg, unsigned int timeout)
+get_asymmetric_access_state(const struct path *pp, unsigned int tpg,
+ unsigned int timeout)
{
unsigned char *buf;
struct rtpg_data * tpgd;
@@ -349,6 +356,7 @@ get_asymmetric_access_state(int fd, unsigned int tpg, unsigned int timeout)
int rc;
int buflen;
uint64_t scsi_buflen;
+ int fd = pp->fd;
buflen = 4096;
buf = (unsigned char *)malloc(buflen);
diff --git a/libmultipath/prioritizers/alua_rtpg.h b/libmultipath/prioritizers/alua_rtpg.h
index 35cffaf3..675709ff 100644
--- a/libmultipath/prioritizers/alua_rtpg.h
+++ b/libmultipath/prioritizers/alua_rtpg.h
@@ -22,8 +22,9 @@
#define RTPG_RTPG_FAILED 3
#define RTPG_TPG_NOT_FOUND 4
-int get_target_port_group_support(int fd, unsigned int timeout);
-int get_target_port_group(struct path * pp, unsigned int timeout);
-int get_asymmetric_access_state(int fd, unsigned int tpg, unsigned int timeout);
+int get_target_port_group_support(const struct path *pp, unsigned int timeout);
+int get_target_port_group(const struct path *pp, unsigned int timeout);
+int get_asymmetric_access_state(const struct path *pp,
+ unsigned int tpg, unsigned int timeout);
#endif /* __RTPG_H__ */
diff --git a/libmultipath/propsel.c b/libmultipath/propsel.c
index 98068f34..624dc6ef 100644
--- a/libmultipath/propsel.c
+++ b/libmultipath/propsel.c
@@ -632,7 +632,7 @@ out:
unsigned int timeout = conf->checker_timeout;
if(!pp->tpgs &&
- (tpgs = get_target_port_group_support(pp->fd, timeout)) >= 0)
+ (tpgs = get_target_port_group_support(pp, timeout)) >= 0)
pp->tpgs = tpgs;
}
condlog(3, "%s: prio = %s %s", pp->dev, prio_name(p), origin);
--
2.21.0
--
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