diff options
| -rwxr-xr-x | libglusterfsclient/src/libglusterfsclient.c | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/libglusterfsclient/src/libglusterfsclient.c b/libglusterfsclient/src/libglusterfsclient.c index 89a7dff8a..576fef7f1 100755 --- a/libglusterfsclient/src/libglusterfsclient.c +++ b/libglusterfsclient/src/libglusterfsclient.c @@ -73,7 +73,16 @@ struct { int entries; }vmplist; -pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; + +/* Protects the VMP list above. */ +pthread_mutex_t vmplock = PTHREAD_MUTEX_INITIALIZER; + +/* Ensures only one thread is ever calling glusterfs_mount. + * Since that function internally calls routines which + * use the yacc parser code using global vars, this process + * needs to be syncronised. + */ +pthread_mutex_t mountlock = PTHREAD_MUTEX_INITIALIZER; char * libgf_vmp_virtual_path(struct vmp_entry *entry, const char *path) @@ -1319,11 +1328,11 @@ libgf_vmp_search_entry (char *path) if (!path) goto out; - pthread_mutex_lock (&lock); + pthread_mutex_lock (&vmplock); { entry = _libgf_vmp_search_entry (path); } - pthread_mutex_unlock (&lock); + pthread_mutex_unlock (&vmplock); out: if (entry) @@ -1390,7 +1399,7 @@ glusterfs_mount (char *vmp, glusterfs_init_params_t *ipars) if (!vmp_resolved) goto out; - pthread_mutex_lock (&lock); + pthread_mutex_lock (&mountlock); { vmp_entry = _libgf_vmp_search_entry (vmp); if (vmp_entry) { @@ -1410,7 +1419,7 @@ glusterfs_mount (char *vmp, glusterfs_init_params_t *ipars) } } unlock: - pthread_mutex_unlock (&lock); + pthread_mutex_unlock (&mountlock); out: if (vmp_resolved) @@ -1454,11 +1463,11 @@ libgf_umount (char *vmp) { int ret = -1; - pthread_mutex_lock (&lock); + pthread_mutex_lock (&vmplock); { ret = _libgf_umount (vmp); } - pthread_mutex_unlock (&lock); + pthread_mutex_unlock (&vmplock); return ret; } @@ -1489,7 +1498,7 @@ glusterfs_umount_all (void) { struct vmp_entry *entry = NULL, *tmp = NULL; - pthread_mutex_lock (&lock); + pthread_mutex_lock (&vmplock); { list_for_each_entry_safe (entry, tmp, &vmplist.list, list) { /* even if there are errors, continue with other @@ -1498,7 +1507,7 @@ glusterfs_umount_all (void) _libgf_umount (entry->vmp); } } - pthread_mutex_unlock (&lock); + pthread_mutex_unlock (&vmplock); return 0; } @@ -1509,8 +1518,8 @@ glusterfs_reset (void) INIT_LIST_HEAD (&vmplist.list); vmplist.entries = 0; - memset (&lock, 0, sizeof (lock)); - pthread_mutex_init (&lock, NULL); + memset (&vmplock, 0, sizeof (vmplock)); + pthread_mutex_init (&vmplock, NULL); first_fini = first_init = 1; } |