External/libvirt
1
0
Fork 0
mirror of https://gitlab.com/libvirt/libvirt.git synced 2024-07-31 14:07:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

storage: Add timeout for iscsi volume's stable path discovery

Browse Source 
It might need some time till the LUN's stable path shows up on
initiator host, and although the time window is not foreseeable,
as a better than nothing fix, this patch adds timeout for the
stable path discovery process.
This commit is contained in:
Osier Yang 2012-09-24 16:44:20 +08:00
parent f6c2951566
commit de7f0774c3
1 changed files with 12 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/storage/storage_backend.c
View File

@ -1347,6 +1347,7 @@ virStorageBackendStablePath(virStoragePoolObjPtr pool,
struct dirent *dent;
char *stablepath;
int opentries = 0;
int retry = 0;
/* Short circuit if pool has no target, or if its /dev */
if (pool->def->target.path == NULL ||
@ -1355,7 +1356,7 @@ virStorageBackendStablePath(virStoragePoolObjPtr pool,
goto ret_strdup;
/* Skip whole thing for a pool which isn't in /dev
* so we don't mess will filesystem/dir based pools
* so we don't mess filesystem/dir based pools
*/
if (!STRPREFIX(pool->def->target.path, "/dev"))
goto ret_strdup;
@ -1384,8 +1385,12 @@ virStorageBackendStablePath(virStoragePoolObjPtr pool,
/* The pool is pointing somewhere like /dev/disk/by-path
* or /dev/disk/by-id, so we need to check all symlinks in
* the target directory and figure out which one points
* to this device node
* to this device node.
*
* And it might need some time till the stabe path shows
* up, so add timeout to retry here.
*/
retry:
while ((dent = readdir(dh)) != NULL) {
if (dent->d_name[0] == '.')
continue;
@ -1406,6 +1411,11 @@ virStorageBackendStablePath(virStoragePoolObjPtr pool,
VIR_FREE(stablepath);
}
if (++retry < 100) {
usleep(100 * 1000);
goto retry;
}
closedir(dh);
ret_strdup: