diff options
Diffstat (limited to 'fs/ocfs2/aops.c')
| -rw-r--r-- | fs/ocfs2/aops.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index acf8f000672..605c82a93f0 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -308,13 +308,13 @@ int ocfs2_prepare_write_nolock(struct inode *inode, struct page *page, * functionality yet, but IMHO it's better to cut and paste the whole * thing so we can avoid introducing our own bugs (and easily pick up * their fixes when they happen) --Mark */ -static int walk_page_buffers( handle_t *handle, - struct buffer_head *head, - unsigned from, - unsigned to, - int *partial, - int (*fn)( handle_t *handle, - struct buffer_head *bh)) +int walk_page_buffers( handle_t *handle, + struct buffer_head *head, + unsigned from, + unsigned to, + int *partial, + int (*fn)( handle_t *handle, + struct buffer_head *bh)) { struct buffer_head *bh; unsigned block_start, block_end; @@ -654,9 +654,9 @@ static void ocfs2_clear_page_regions(struct page *page, * * This will also skip zeroing, which is handled externally. */ -static int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, - struct inode *inode, unsigned int from, - unsigned int to, int new) +int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, + struct inode *inode, unsigned int from, + unsigned int to, int new) { int ret = 0; struct buffer_head *head, *bh, *wait[2], **wait_bh = wait; @@ -675,8 +675,7 @@ static int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, * Ignore blocks outside of our i/o range - * they may belong to unallocated clusters. */ - if (block_start >= to || - (block_start + bsize) <= from) { + if (block_start >= to || block_end <= from) { if (PageUptodate(page)) set_buffer_uptodate(bh); continue; @@ -971,7 +970,6 @@ static ssize_t ocfs2_write(struct file *file, u32 phys, handle_t *handle, u64 v_blkno, p_blkno; struct address_space *mapping = file->f_mapping; struct inode *inode = mapping->host; - unsigned int cbits = OCFS2_SB(inode->i_sb)->s_clustersize_bits; unsigned long index, start; struct page **cpages; @@ -979,13 +977,11 @@ static ssize_t ocfs2_write(struct file *file, u32 phys, handle_t *handle, /* * Figure out how many pages we'll be manipulating here. For - * non-allocating write, or any writes where cluster size is - * less than page size, we only need one page. Otherwise, - * allocating writes of cluster size larger than page size - * need cluster size pages. + * non allocating write, we just change the one + * page. Otherwise, we'll need a whole clusters worth. */ - if (new && !wc->w_large_pages) - numpages = (1 << cbits) / PAGE_SIZE; + if (new) + numpages = ocfs2_pages_per_cluster(inode->i_sb); cpages = kzalloc(sizeof(*cpages) * numpages, GFP_NOFS); if (!cpages) { |