External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-07-11 04:15:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

storage: Rework virStorageBackendSCSISerial

Browse Source 
Alter the code to use the virStorageFileGetSCSIKey helper
to fetch the unique key for the SCSI disk. Alter the logic
to follow the former code which would return a duplicate
of @dev when either the virCommandRun succeeded, but returned
an empty string or when WITH_UDEV was not true.

Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
John Ferlan 2019-01-15 15:59:21 -05:00
parent 9b86bbccb3
commit 8bf89dc837
4 changed files with 17 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/locking/lock_driver_lockd.c
View File

@ -531,7 +531,7 @@ static int virLockManagerLockDaemonAddResource(virLockManagerPtr lock,
if (STRPREFIX(name, "/dev") &&
driver->scsiLockSpaceDir) {
VIR_DEBUG("Trying to find an SCSI ID for %s", name);
if (virStorageFileGetSCSIKey(name, &newName) < 0)
if (virStorageFileGetSCSIKey(name, &newName, false) < 0)
goto cleanup;
if (newName) {

33
src/storage/storage_util.c
View File

@ -3778,36 +3778,17 @@ virStorageBackendRefreshLocal(virStoragePoolObjPtr pool)
static char *
virStorageBackendSCSISerial(const char *dev)
{
int rc;
char *serial = NULL;
#ifdef WITH_UDEV
virCommandPtr cmd = virCommandNewArgList(
"/lib/udev/scsi_id",
"--replace-whitespace",
"--whitelisted",
"--device", dev,
NULL
);
/* Run the program and capture its output */
virCommandSetOutputBuffer(cmd, &serial);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
#endif
rc = virStorageFileGetSCSIKey(dev, &serial, true);
if (rc == 0 && serial)
return serial;
if (serial && STRNEQ(serial, "")) {
char *nl = strchr(serial, '\n');
if (nl)
*nl = '\0';
} else {
VIR_FREE(serial);
ignore_value(VIR_STRDUP(serial, dev));
}
#ifdef WITH_UDEV
cleanup:
virCommandFree(cmd);
#endif
if (rc == -2)
return NULL;
ignore_value(VIR_STRDUP(serial, dev));
return serial;
}

10
src/util/virstoragefile.c
View File

@ -1428,6 +1428,7 @@ int virStorageFileGetLVMKey(const char *path,
/* virStorageFileGetSCSIKey
* @path: Path to the SCSI device
* @key: Unique key to be returned
* @ignoreError: Used to not report ENOSYS
*
* Using a udev specific function, query the @path to get and return a
* unique @key for the caller to use.
@ -1440,7 +1441,8 @@ int virStorageFileGetLVMKey(const char *path,
*/
int
virStorageFileGetSCSIKey(const char *path,
char **key)
char **key,
bool ignoreError ATTRIBUTE_UNUSED)
{
int status;
virCommandPtr cmd = virCommandNewArgList("/lib/udev/scsi_id",
@ -1480,9 +1482,11 @@ virStorageFileGetSCSIKey(const char *path,
}
#else
int virStorageFileGetSCSIKey(const char *path,
char **key ATTRIBUTE_UNUSED)
char **key ATTRIBUTE_UNUSED,
bool ignoreError)
{
virReportSystemError(ENOSYS, _("Unable to get SCSI key for %s"), path);
if (!ignoreError)
virReportSystemError(ENOSYS, _("Unable to get SCSI key for %s"), path);
return -1;
}
#endif

3
src/util/virstoragefile.h
View File

@ -390,7 +390,8 @@ bool virStorageIsRelative(const char *backing);
int virStorageFileGetLVMKey(const char *path,
char **key);
int virStorageFileGetSCSIKey(const char *path,
char **key);
char **key,
bool ignoreError);
void virStorageAuthDefFree(virStorageAuthDefPtr def);
virStorageAuthDefPtr virStorageAuthDefCopy(const virStorageAuthDef *src);