diff options
Diffstat (limited to 'fs/cachefiles/rdwr.c')
| -rw-r--r-- | fs/cachefiles/rdwr.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/fs/cachefiles/rdwr.c b/fs/cachefiles/rdwr.c index 44a3ce1e4ce4..1dc97f2d6201 100644 --- a/fs/cachefiles/rdwr.c +++ b/fs/cachefiles/rdwr.c @@ -396,7 +396,7 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, struct cachefiles_object *object; struct cachefiles_cache *cache; struct inode *inode; - sector_t block0, block; + sector_t block; unsigned shift; int ret; @@ -412,7 +412,6 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, inode = d_backing_inode(object->backer); ASSERT(S_ISREG(inode->i_mode)); - ASSERT(inode->i_mapping->a_ops->bmap); ASSERT(inode->i_mapping->a_ops->readpages); /* calculate the shift required to use bmap */ @@ -428,12 +427,14 @@ int cachefiles_read_or_alloc_page(struct fscache_retrieval *op, * enough for this as it doesn't indicate errors, but it's all we've * got for the moment */ - block0 = page->index; - block0 <<= shift; + block = page->index; + block <<= shift; + + ret = bmap(inode, &block); + ASSERT(ret < 0); - block = inode->i_mapping->a_ops->bmap(inode->i_mapping, block0); _debug("%llx -> %llx", - (unsigned long long) block0, + (unsigned long long) (page->index << shift), (unsigned long long) block); if (block) { @@ -711,7 +712,6 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op, inode = d_backing_inode(object->backer); ASSERT(S_ISREG(inode->i_mode)); - ASSERT(inode->i_mapping->a_ops->bmap); ASSERT(inode->i_mapping->a_ops->readpages); /* calculate the shift required to use bmap */ @@ -728,7 +728,7 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op, ret = space ? -ENODATA : -ENOBUFS; list_for_each_entry_safe(page, _n, pages, lru) { - sector_t block0, block; + sector_t block; /* we assume the absence or presence of the first block is a * good enough indication for the page as a whole @@ -736,13 +736,14 @@ int cachefiles_read_or_alloc_pages(struct fscache_retrieval *op, * good enough for this as it doesn't indicate errors, but * it's all we've got for the moment */ - block0 = page->index; - block0 <<= shift; + block = page->index; + block <<= shift; + + ret = bmap(inode, &block); + ASSERT(!ret); - block = inode->i_mapping->a_ops->bmap(inode->i_mapping, - block0); _debug("%llx -> %llx", - (unsigned long long) block0, + (unsigned long long) (page->index << shift), (unsigned long long) block); if (block) { |