diff options
Diffstat (limited to 'fs/buffer.c')
| -rw-r--r-- | fs/buffer.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/fs/buffer.c b/fs/buffer.c index e6134c203..b296dad7b 100644 --- a/fs/buffer.c +++ b/fs/buffer.c @@ -1149,7 +1149,7 @@ void set_bh_page (struct buffer_head *bh, struct page *page, unsigned long offse */ bh->b_data = (char *)(0 + offset); else - bh->b_data = (char *)(page_address(page) + offset); + bh->b_data = page_address(page) + offset; } /* @@ -1475,6 +1475,8 @@ static int __block_prepare_write(struct inode *inode, struct page *page, memset(kaddr+to, 0, block_end-to); if (block_start < from) memset(kaddr+block_start, 0, from-block_start); + if (block_end > to || block_start < from) + flush_dcache_page(page); continue; } } @@ -1578,6 +1580,7 @@ int block_read_full_page(struct page *page, get_block_t *get_block) if (!kaddr) kaddr = kmap(page); memset((char *)(kaddr + i*blocksize), 0, blocksize); + flush_dcache_page(page); set_bit(BH_Uptodate, &bh->b_state); continue; } @@ -1642,8 +1645,9 @@ int cont_prepare_write(struct page *page, unsigned offset, unsigned to, get_bloc PAGE_CACHE_SIZE, get_block); if (status) goto out_unmap; - kaddr = (char*)page_address(new_page); + kaddr = page_address(new_page); memset(kaddr+zerofrom, 0, PAGE_CACHE_SIZE-zerofrom); + flush_dcache_page(new_page); __block_commit_write(inode, new_page, zerofrom, PAGE_CACHE_SIZE); kunmap(new_page); UnlockPage(new_page); @@ -1670,9 +1674,10 @@ int cont_prepare_write(struct page *page, unsigned offset, unsigned to, get_bloc status = __block_prepare_write(inode, page, zerofrom, to, get_block); if (status) goto out1; - kaddr = (char*)page_address(page); + kaddr = page_address(page); if (zerofrom < offset) { memset(kaddr+zerofrom, 0, offset-zerofrom); + flush_dcache_page(page); __block_commit_write(inode, page, zerofrom, offset); } return 0; @@ -1733,7 +1738,8 @@ int block_write_full_page(struct page *page, get_block_t *get_block) /* Sigh... will have to work, then... */ err = __block_prepare_write(inode, page, 0, offset, get_block); if (!err) { - memset((char *)page_address(page)+offset, 0, PAGE_CACHE_SIZE-offset); + memset(page_address(page) + offset, 0, PAGE_CACHE_SIZE - offset); + flush_dcache_page(page); __block_commit_write(inode,page,0,offset); done: kunmap(page); @@ -2035,7 +2041,7 @@ int block_symlink(struct inode *inode, const char *symname, int len) err = mapping->a_ops->prepare_write(NULL, page, 0, len-1); if (err) goto fail_map; - kaddr = (char*)page_address(page); + kaddr = page_address(page); memcpy(kaddr, symname, len-1); mapping->a_ops->commit_write(NULL, page, 0, len-1); /* |