diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2011-05-05 12:56:51 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2011-05-10 22:21:57 +0900 |
| commit | aa405b1f4238401616e7d98620170b424b2dbefc (patch) | |
| tree | c42986a31c3383490d010ae55a97c37f5095220c /fs/nilfs2/page.c | |
| parent | 0ef28f9aec4dccfba33cef74412f601c1b48b658 (diff) | |
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/page.c')
| -rw-r--r-- | fs/nilfs2/page.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/fs/nilfs2/page.c b/fs/nilfs2/page.c index b3b988c2018..3f18f5c076e 100644 --- a/fs/nilfs2/page.c +++ b/fs/nilfs2/page.c @@ -182,7 +182,7 @@ int nilfs_page_buffers_clean(struct page *page) void nilfs_page_bug(struct page *page) { struct address_space *m; - unsigned long ino = 0; + unsigned long ino; if (unlikely(!page)) { printk(KERN_CRIT "NILFS_PAGE_BUG(NULL)\n"); @@ -190,11 +190,8 @@ void nilfs_page_bug(struct page *page) } m = page->mapping; - if (m) { - struct inode *inode = NILFS_AS_I(m); - if (inode != NULL) - ino = inode->i_ino; - } + ino = m ? m->host->i_ino : 0; + printk(KERN_CRIT "NILFS_PAGE_BUG(%p): cnt=%d index#=%llu flags=0x%lx " "mapping=%p ino=%lu\n", page, atomic_read(&page->_count), @@ -441,10 +438,10 @@ unsigned nilfs_page_count_clean_buffers(struct page *page, return nc; } -void nilfs_mapping_init(struct address_space *mapping, +void nilfs_mapping_init(struct address_space *mapping, struct inode *inode, struct backing_dev_info *bdi) { - mapping->host = NULL; + mapping->host = inode; mapping->flags = 0; mapping_set_gfp_mask(mapping, GFP_NOFS); mapping->assoc_mapping = NULL; |