/* For struct ocfs2_blockcheck_stats */
#include "blockcheck.h"
+
+/* Caching of metadata buffers */
+
/* Most user visible OCFS2 inodes will have very few pieces of
* metadata, but larger files (including bitmaps, etc) must be taken
* into account when designing an access scheme. We allow a small
* amount of inlined blocks to be stored on an array and grow the
* structure into a rb tree when necessary. */
-#define OCFS2_INODE_MAX_CACHE_ARRAY 2
+#define OCFS2_CACHE_INFO_MAX_ARRAY 2
+
+/* Flags for ocfs2_caching_info */
+
+enum ocfs2_caching_info_flags {
+ /* Indicates that the metadata cache is using the inline array */
+ OCFS2_CACHE_FL_INLINE = 1<<1,
+};
+struct ocfs2_caching_operations;
struct ocfs2_caching_info {
+ /*
+ * The parent structure provides the locks, but because the
+ * parent structure can differ, it provides locking operations
+ * to struct ocfs2_caching_info.
+ */
+ const struct ocfs2_caching_operations *ci_ops;
+
+ unsigned int ci_flags;
unsigned int ci_num_cached;
union {
- sector_t ci_array[OCFS2_INODE_MAX_CACHE_ARRAY];
+ sector_t ci_array[OCFS2_CACHE_INFO_MAX_ARRAY];
struct rb_root ci_tree;
} ci_cache;
};
OCFS2_MOUNT_GRPQUOTA = 1 << 10, /* We support group quotas */
};
-#define OCFS2_OSB_SOFT_RO 0x0001
-#define OCFS2_OSB_HARD_RO 0x0002
-#define OCFS2_OSB_ERROR_FS 0x0004
-#define OCFS2_DEFAULT_ATIME_QUANTUM 60
+#define OCFS2_OSB_SOFT_RO 0x0001
+#define OCFS2_OSB_HARD_RO 0x0002
+#define OCFS2_OSB_ERROR_FS 0x0004
+#define OCFS2_OSB_DROP_DENTRY_LOCK_IMMED 0x0008
+
+#define OCFS2_DEFAULT_ATIME_QUANTUM 60
struct ocfs2_journal;
struct ocfs2_slot_info;
spin_unlock(&osb->osb_lock);
}
+
+static inline unsigned long ocfs2_test_osb_flag(struct ocfs2_super *osb,
+ unsigned long flag)
+{
+ unsigned long ret;
+
+ spin_lock(&osb->osb_lock);
+ ret = osb->osb_flags & flag;
+ spin_unlock(&osb->osb_lock);
+ return ret;
+}
+
static inline void ocfs2_set_ro_flag(struct ocfs2_super *osb,
int hard)
{