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 <[email protected]>
---
fs/nilfs2/btnode.c | 4 +++-
fs/nilfs2/gcinode.c | 5 +++--
fs/nilfs2/mdt.c | 1 +
3 files changed, 7 insertions(+), 3 deletions(-)
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 @@ void nilfs_btnode_cache_init_once(struct address_space *btnc)
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 9b149a1..a5cd801 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -434,6 +434,7 @@ nilfs_mdt_write_page(struct page *page, struct
writeback_control *wbc)
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;
--
1.6.2
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