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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-05-05 12:56:51 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2011-05-10 22:21:57 +0900
commitaa405b1f4238401616e7d98620170b424b2dbefc (patch)
treec42986a31c3383490d010ae55a97c37f5095220c /fs/nilfs2/segment.c
parent0ef28f9aec4dccfba33cef74412f601c1b48b658 (diff)
downloadlinux-stericsson-aa405b1f4238401616e7d98620170b424b2dbefc.tar.gz
nilfs2: always set back pointer to host inode in mapping->host
In the current nilfs, page cache for btree nodes and meta data files do not set a valid back pointer to the host inode in mapping->host. This will change it so that every address space in nilfs uses mapping->host to hold its host inode. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/segment.c')
-rw-r--r--fs/nilfs2/segment.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 186cabbe54d7..eeb1bc2c76ca 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -655,13 +655,10 @@ static size_t nilfs_lookup_dirty_data_buffers(struct inode *inode,
if (unlikely(page->index > last))
break;
- if (mapping->host) {
- lock_page(page);
- if (!page_has_buffers(page))
- create_empty_buffers(page,
- 1 << inode->i_blkbits, 0);
- unlock_page(page);
- }
+ lock_page(page);
+ if (!page_has_buffers(page))
+ create_empty_buffers(page, 1 << inode->i_blkbits, 0);
+ unlock_page(page);
bh = head = page_buffers(page);
do {
@@ -1503,10 +1500,7 @@ nilfs_segctor_update_payload_blocknr(struct nilfs_sc_info *sci,
nblocks = le32_to_cpu(finfo->fi_nblocks);
ndatablk = le32_to_cpu(finfo->fi_ndatablk);
- if (buffer_nilfs_node(bh))
- inode = NILFS_BTNC_I(bh->b_page->mapping);
- else
- inode = NILFS_AS_I(bh->b_page->mapping);
+ inode = bh->b_page->mapping->host;
if (mode == SC_LSEG_DSYNC)
sc_op = &nilfs_sc_dsync_ops;