atomic_t obd_memory;
int obd_memmax;
-
/* Debugging check only needed during development */
#ifdef OBD_CTXT_DEBUG
# define ASSERT_CTXT_MAGIC(magic) LASSERT((magic) == OBD_RUN_CTXT_MAGIC)
/*
CDEBUG(D_INFO,
- "= push %p->%p = cur fs %p pwd %p:d%d:i%d (%*s), pwdmnt %p:%d\n",
+ "= push %p->%p = cur fs %p pwd %p:d%d:i%d (%.*s), pwdmnt %p:%d\n",
save, current, current->fs, current->fs->pwd,
atomic_read(¤t->fs->pwd->d_count),
atomic_read(¤t->fs->pwd->d_inode->i_count),
/*
CDEBUG(D_INFO,
- "= push %p->%p = cur fs %p pwd %p:d%d:i%d (%*s), pwdmnt %p:%d\n",
+ "= push %p->%p = cur fs %p pwd %p:d%d:i%d (%.*s), pwdmnt %p:%d\n",
new_ctx, current, current->fs, current->fs->pwd,
atomic_read(¤t->fs->pwd->d_count),
atomic_read(¤t->fs->pwd->d_inode->i_count),
/*
CDEBUG(D_INFO,
- " = pop %p==%p = cur %p pwd %p:d%d:i%d (%*s), pwdmnt %p:%d\n",
+ " = pop %p==%p = cur %p pwd %p:d%d:i%d (%.*s), pwdmnt %p:%d\n",
new_ctx, current, current->fs, current->fs->pwd,
atomic_read(¤t->fs->pwd->d_count),
atomic_read(¤t->fs->pwd->d_inode->i_count),
/*
CDEBUG(D_INFO,
- "= pop %p->%p = cur fs %p pwd %p:d%d:i%d (%*s), pwdmnt %p:%d\n",
+ "= pop %p->%p = cur fs %p pwd %p:d%d:i%d (%.*s), pwdmnt %p:%d\n",
saved, current, current->fs, current->fs->pwd,
atomic_read(¤t->fs->pwd->d_count),
atomic_read(¤t->fs->pwd->d_inode->i_count),
ENTRY;
ASSERT_KERNEL_CTXT("kernel doing mknod outside kernel context\n");
- CDEBUG(D_INODE, "creating file %*s\n", (int)strlen(name), name);
+ CDEBUG(D_INODE, "creating file %.*s\n", (int)strlen(name), name);
dchild = ll_lookup_one_len(name, dir, strlen(name));
if (IS_ERR(dchild))
ENTRY;
ASSERT_KERNEL_CTXT("kernel doing mkdir outside kernel context\n");
- CDEBUG(D_INODE, "creating directory %*s\n", (int)strlen(name), name);
+ CDEBUG(D_INODE, "creating directory %.*s\n", (int)strlen(name), name);
dchild = ll_lookup_one_len(name, dir, strlen(name));
if (IS_ERR(dchild))
GOTO(out_up, dchild);
if (dchild->d_inode) {
int old_mode = dchild->d_inode->i_mode;
- if (!S_ISDIR(old_mode))
+ if (!S_ISDIR(old_mode)) {
+ CERROR("found %s (%lu/%u) is mode %o\n", name,
+ dchild->d_inode->i_ino,
+ dchild->d_inode->i_generation, old_mode);
GOTO(out_err, err = -ENOTDIR);
+ }
/* Fixup directory permissions if necessary */
if (fix && (old_mode & S_IALLUGO) != (mode & S_IALLUGO)) {
EXPORT_SYMBOL(obd_memory);
EXPORT_SYMBOL(obd_memmax);
+#if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
+static spinlock_t obd_memlist_lock = SPIN_LOCK_UNLOCKED;
+static struct hlist_head *obd_memtable;
+static unsigned long obd_memtable_size;
+
+static int lvfs_memdbg_init(int size)
+{
+ struct hlist_head *head;
+ int i;
+
+ LASSERT(size > sizeof(sizeof(struct hlist_head)));
+ obd_memtable_size = size / sizeof(struct hlist_head);
+
+ CWARN("Allocating %lu malloc entries...\n",
+ (unsigned long)obd_memtable_size);
+
+ obd_memtable = kmalloc(size, GFP_KERNEL);
+ if (!obd_memtable)
+ return -ENOMEM;
+
+ i = obd_memtable_size;
+ head = obd_memtable;
+ do {
+ INIT_HLIST_HEAD(head);
+ head++;
+ i--;
+ } while(i);
+
+ return 0;
+}
+
+static int lvfs_memdbg_cleanup(void)
+{
+ struct hlist_node *node = NULL, *tmp = NULL;
+ struct hlist_head *head;
+ struct mtrack *mt;
+ int i;
+
+ spin_lock(&obd_memlist_lock);
+ for (i = 0, head = obd_memtable; i < obd_memtable_size; i++, head++) {
+ hlist_for_each_safe(node, tmp, head) {
+ mt = hlist_entry(node, struct mtrack, m_hash);
+ hlist_del_init(&mt->m_hash);
+ kfree(mt);
+ }
+ }
+ spin_unlock(&obd_memlist_lock);
+ kfree(obd_memtable);
+ return 0;
+}
+
+static inline unsigned long const hashfn(void *ptr)
+{
+ return (unsigned long)ptr &
+ (obd_memtable_size - 1);
+}
+
+static void __lvfs_memdbg_insert(struct mtrack *mt)
+{
+ struct hlist_head *head = obd_memtable +
+ hashfn(mt->m_ptr);
+ hlist_add_head(&mt->m_hash, head);
+}
+
+void lvfs_memdbg_insert(struct mtrack *mt)
+{
+ spin_lock(&obd_memlist_lock);
+ __lvfs_memdbg_insert(mt);
+ spin_unlock(&obd_memlist_lock);
+}
+EXPORT_SYMBOL(lvfs_memdbg_insert);
+
+static void __lvfs_memdbg_remove(struct mtrack *mt)
+{
+ hlist_del_init(&mt->m_hash);
+}
+
+void lvfs_memdbg_remove(struct mtrack *mt)
+{
+ spin_lock(&obd_memlist_lock);
+ __lvfs_memdbg_remove(mt);
+ spin_unlock(&obd_memlist_lock);
+}
+EXPORT_SYMBOL(lvfs_memdbg_remove);
+
+static struct mtrack *__lvfs_memdbg_find(void *ptr)
+{
+ struct hlist_node *node = NULL;
+ struct mtrack *mt = NULL;
+ struct hlist_head *head;
+
+ head = obd_memtable + hashfn(ptr);
+
+ hlist_for_each(node, head) {
+ mt = hlist_entry(node, struct mtrack, m_hash);
+ if ((unsigned long)mt->m_ptr == (unsigned long)ptr)
+ break;
+ mt = NULL;
+ }
+ return mt;
+}
+
+struct mtrack *lvfs_memdbg_find(void *ptr)
+{
+ struct mtrack *mt;
+
+ spin_lock(&obd_memlist_lock);
+ mt = __lvfs_memdbg_find(ptr);
+ spin_unlock(&obd_memlist_lock);
+
+ return mt;
+}
+EXPORT_SYMBOL(lvfs_memdbg_find);
+
+int lvfs_memdbg_check_insert(struct mtrack *mt)
+{
+ spin_lock(&obd_memlist_lock);
+ if (!__lvfs_memdbg_find(mt->m_ptr)) {
+ __lvfs_memdbg_insert(mt);
+ spin_unlock(&obd_memlist_lock);
+ return 1;
+ }
+ spin_unlock(&obd_memlist_lock);
+ return 0;
+}
+EXPORT_SYMBOL(lvfs_memdbg_check_insert);
+
+struct mtrack *
+lvfs_memdbg_check_remove(void *ptr)
+{
+ struct mtrack *mt;
+
+ spin_lock(&obd_memlist_lock);
+ mt = __lvfs_memdbg_find(ptr);
+ if (mt) {
+ __lvfs_memdbg_remove(mt);
+ spin_unlock(&obd_memlist_lock);
+ return mt;
+ }
+ spin_unlock(&obd_memlist_lock);
+ return NULL;
+}
+EXPORT_SYMBOL(lvfs_memdbg_check_remove);
+
+static void lvfs_memdbg_show(void)
+{
+ struct hlist_node *node = NULL;
+ struct hlist_head *head;
+ struct mtrack *mt;
+ int leaked, i;
+
+ leaked = atomic_read(&obd_memory);
+
+ if (leaked > 0) {
+ CWARN("Memory leaks detected (max %d, leaked %d):\n",
+ obd_memmax, leaked);
+
+ spin_lock(&obd_memlist_lock);
+ for (i = 0, head = obd_memtable; i < obd_memtable_size; i++, head++) {
+ hlist_for_each(node, head) {
+ mt = hlist_entry(node, struct mtrack, m_hash);
+ CWARN(" ptr: 0x%p, size: %d, src at \"%s\"\n",
+ mt->m_ptr, mt->m_size, mt->m_loc);
+ }
+ }
+ spin_unlock(&obd_memlist_lock);
+ }
+}
+#endif
+
static int __init lvfs_linux_init(void)
{
+ ENTRY;
+#if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
+ lvfs_memdbg_init(PAGE_SIZE);
+#endif
+ lvfs_mount_list_init();
RETURN(0);
}
static void __exit lvfs_linux_exit(void)
{
- int leaked;
ENTRY;
- leaked = atomic_read(&obd_memory);
- CDEBUG(leaked ? D_ERROR : D_INFO,
- "obd mem max: %d leaked: %d\n", obd_memmax, leaked);
+ lvfs_mount_list_cleanup();
+#if defined (CONFIG_DEBUG_MEMORY) && defined(__KERNEL__)
+ lvfs_memdbg_show();
+ lvfs_memdbg_cleanup();
+#endif
+ EXIT;
return;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff