ceph: acquire i_mutex in __ceph_do_pending_vmtruncate
make __ceph_do_pending_vmtruncate() acquire the i_mutex if the caller
does not hold the i_mutex, so ceph_aio_read() can call safely.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 20dd1ee..a04eda7 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -694,7 +694,7 @@
extern int ceph_inode_holds_cap(struct inode *inode, int mask);
extern int ceph_inode_set_size(struct inode *inode, loff_t size);
-extern void __ceph_do_pending_vmtruncate(struct inode *inode);
+extern void __ceph_do_pending_vmtruncate(struct inode *inode, bool needlock);
extern void ceph_queue_vmtruncate(struct inode *inode);
extern void ceph_queue_invalidate(struct inode *inode);