ext4_releasepage 3933 fs/ext4/inode.c .releasepage = ext4_releasepage, ext4_releasepage 3950 fs/ext4/inode.c .releasepage = ext4_releasepage, ext4_releasepage 3966 fs/ext4/inode.c .releasepage = ext4_releasepage, ext4_releasepage 562 include/trace/events/ext4.h DEFINE_EVENT(ext4__page_op, ext4_releasepage,