nilfs2: add sync_page method to page caches of meta data
This applies block_sync_page() function to the sync_page method of
page caches for meta data files, gc page caches, and btree node
buffers. This is a companion patch of ("nilfs2: enable sync_page
mothod") which applied the function for data pages.
This allows lock_page() for those meta data to unplug pending bio
requests.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
diff --git a/fs/nilfs2/btnode.c b/fs/nilfs2/btnode.c
index 0e01957..7e0b61b 100644
--- a/fs/nilfs2/btnode.c
+++ b/fs/nilfs2/btnode.c
@@ -46,7 +46,9 @@
INIT_LIST_HEAD(&btnc->i_mmap_nonlinear);
}
-static struct address_space_operations def_btnode_aops;
+static struct address_space_operations def_btnode_aops = {
+ .sync_page = block_sync_page,
+};
void nilfs_btnode_cache_init(struct address_space *btnc,
struct backing_dev_info *bdi)
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 19d2102..1b3c2bb 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -52,8 +52,9 @@
#include "dat.h"
#include "ifile.h"
-static struct address_space_operations def_gcinode_aops = {};
-/* XXX need def_gcinode_iops/fops? */
+static struct address_space_operations def_gcinode_aops = {
+ .sync_page = block_sync_page,
+};
/*
* nilfs_gccache_submit_read_data() - add data buffer and submit read request
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 7b7032e..3d3ddb3 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -430,6 +430,7 @@
static struct address_space_operations def_mdt_aops = {
.writepage = nilfs_mdt_write_page,
+ .sync_page = block_sync_page,
};
static struct inode_operations def_mdt_iops;
