ext4: add a new ioctl EXT4_IOC_CLEAR_ES_CACHE
The new ioctl EXT4_IOC_CLEAR_ES_CACHE will force an inode's extent
status cache to be cleared out. This is intended for use for
debugging.
Signed-off-by: Theodore Ts'o <[email protected]>
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index 131a8b7..e16785f 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -248,5 +248,6 @@ extern unsigned int ext4_es_delayed_clu(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len);
extern void ext4_es_remove_blks(struct inode *inode, ext4_lblk_t lblk,
ext4_lblk_t len);
+extern void ext4_clear_inode_es(struct inode *inode);
#endif /* _EXT4_EXTENTS_STATUS_H */
