diff options
Diffstat (limited to 'mm/filemap.c')
| -rw-r--r-- | mm/filemap.c | 126 | 
1 files changed, 63 insertions, 63 deletions
diff --git a/mm/filemap.c b/mm/filemap.c index a8c69c8c0a90..f2479af09da9 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -265,7 +265,7 @@ void delete_from_page_cache(struct page *page)  	if (freepage)  		freepage(page); -	page_cache_release(page); +	put_page(page);  }  EXPORT_SYMBOL(delete_from_page_cache); @@ -352,8 +352,8 @@ EXPORT_SYMBOL(filemap_flush);  static int __filemap_fdatawait_range(struct address_space *mapping,  				     loff_t start_byte, loff_t end_byte)  { -	pgoff_t index = start_byte >> PAGE_CACHE_SHIFT; -	pgoff_t end = end_byte >> PAGE_CACHE_SHIFT; +	pgoff_t index = start_byte >> PAGE_SHIFT; +	pgoff_t end = end_byte >> PAGE_SHIFT;  	struct pagevec pvec;  	int nr_pages;  	int ret = 0; @@ -550,7 +550,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)  		pgoff_t offset = old->index;  		freepage = mapping->a_ops->freepage; -		page_cache_get(new); +		get_page(new);  		new->mapping = mapping;  		new->index = offset; @@ -572,7 +572,7 @@ int replace_page_cache_page(struct page *old, struct page *new, gfp_t gfp_mask)  		radix_tree_preload_end();  		if (freepage)  			freepage(old); -		page_cache_release(old); +		put_page(old);  	}  	return error; @@ -651,7 +651,7 @@ static int __add_to_page_cache_locked(struct page *page,  		return error;  	} -	page_cache_get(page); +	get_page(page);  	page->mapping = mapping;  	page->index = offset; @@ -675,7 +675,7 @@ err_insert:  	spin_unlock_irq(&mapping->tree_lock);  	if (!huge)  		mem_cgroup_cancel_charge(page, memcg, false); -	page_cache_release(page); +	put_page(page);  	return error;  } @@ -1083,7 +1083,7 @@ repeat:  		 * include/linux/pagemap.h for details.  		 */  		if (unlikely(page != *pagep)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		}  	} @@ -1121,7 +1121,7 @@ repeat:  		/* Has the page been truncated? */  		if (unlikely(page->mapping != mapping)) {  			unlock_page(page); -			page_cache_release(page); +			put_page(page);  			goto repeat;  		}  		VM_BUG_ON_PAGE(page->index != offset, page); @@ -1168,7 +1168,7 @@ repeat:  	if (fgp_flags & FGP_LOCK) {  		if (fgp_flags & FGP_NOWAIT) {  			if (!trylock_page(page)) { -				page_cache_release(page); +				put_page(page);  				return NULL;  			}  		} else { @@ -1178,7 +1178,7 @@ repeat:  		/* Has the page been truncated? */  		if (unlikely(page->mapping != mapping)) {  			unlock_page(page); -			page_cache_release(page); +			put_page(page);  			goto repeat;  		}  		VM_BUG_ON_PAGE(page->index != offset, page); @@ -1209,7 +1209,7 @@ no_page:  		err = add_to_page_cache_lru(page, mapping, offset,  				gfp_mask & GFP_RECLAIM_MASK);  		if (unlikely(err)) { -			page_cache_release(page); +			put_page(page);  			page = NULL;  			if (err == -EEXIST)  				goto repeat; @@ -1278,7 +1278,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		}  export: @@ -1343,7 +1343,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		} @@ -1405,7 +1405,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		} @@ -1415,7 +1415,7 @@ repeat:  		 * negatives, which is just confusing to the caller.  		 */  		if (page->mapping == NULL || page->index != iter.index) { -			page_cache_release(page); +			put_page(page);  			break;  		} @@ -1482,7 +1482,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		} @@ -1549,7 +1549,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		}  export: @@ -1610,11 +1610,11 @@ static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,  	unsigned int prev_offset;  	int error = 0; -	index = *ppos >> PAGE_CACHE_SHIFT; -	prev_index = ra->prev_pos >> PAGE_CACHE_SHIFT; -	prev_offset = ra->prev_pos & (PAGE_CACHE_SIZE-1); -	last_index = (*ppos + iter->count + PAGE_CACHE_SIZE-1) >> PAGE_CACHE_SHIFT; -	offset = *ppos & ~PAGE_CACHE_MASK; +	index = *ppos >> PAGE_SHIFT; +	prev_index = ra->prev_pos >> PAGE_SHIFT; +	prev_offset = ra->prev_pos & (PAGE_SIZE-1); +	last_index = (*ppos + iter->count + PAGE_SIZE-1) >> PAGE_SHIFT; +	offset = *ppos & ~PAGE_MASK;  	for (;;) {  		struct page *page; @@ -1648,7 +1648,7 @@ find_page:  			if (PageUptodate(page))  				goto page_ok; -			if (inode->i_blkbits == PAGE_CACHE_SHIFT || +			if (inode->i_blkbits == PAGE_SHIFT ||  					!mapping->a_ops->is_partially_uptodate)  				goto page_not_up_to_date;  			if (!trylock_page(page)) @@ -1672,18 +1672,18 @@ page_ok:  		 */  		isize = i_size_read(inode); -		end_index = (isize - 1) >> PAGE_CACHE_SHIFT; +		end_index = (isize - 1) >> PAGE_SHIFT;  		if (unlikely(!isize || index > end_index)) { -			page_cache_release(page); +			put_page(page);  			goto out;  		}  		/* nr is the maximum number of bytes to copy from this page */ -		nr = PAGE_CACHE_SIZE; +		nr = PAGE_SIZE;  		if (index == end_index) { -			nr = ((isize - 1) & ~PAGE_CACHE_MASK) + 1; +			nr = ((isize - 1) & ~PAGE_MASK) + 1;  			if (nr <= offset) { -				page_cache_release(page); +				put_page(page);  				goto out;  			}  		} @@ -1711,11 +1711,11 @@ page_ok:  		ret = copy_page_to_iter(page, offset, nr, iter);  		offset += ret; -		index += offset >> PAGE_CACHE_SHIFT; -		offset &= ~PAGE_CACHE_MASK; +		index += offset >> PAGE_SHIFT; +		offset &= ~PAGE_MASK;  		prev_offset = offset; -		page_cache_release(page); +		put_page(page);  		written += ret;  		if (!iov_iter_count(iter))  			goto out; @@ -1735,7 +1735,7 @@ page_not_up_to_date_locked:  		/* Did it get truncated before we got the lock? */  		if (!page->mapping) {  			unlock_page(page); -			page_cache_release(page); +			put_page(page);  			continue;  		} @@ -1757,7 +1757,7 @@ readpage:  		if (unlikely(error)) {  			if (error == AOP_TRUNCATED_PAGE) { -				page_cache_release(page); +				put_page(page);  				error = 0;  				goto find_page;  			} @@ -1774,7 +1774,7 @@ readpage:  					 * invalidate_mapping_pages got it  					 */  					unlock_page(page); -					page_cache_release(page); +					put_page(page);  					goto find_page;  				}  				unlock_page(page); @@ -1789,7 +1789,7 @@ readpage:  readpage_error:  		/* UHHUH! A synchronous read error occurred. Report it */ -		page_cache_release(page); +		put_page(page);  		goto out;  no_cached_page: @@ -1805,7 +1805,7 @@ no_cached_page:  		error = add_to_page_cache_lru(page, mapping, index,  				mapping_gfp_constraint(mapping, GFP_KERNEL));  		if (error) { -			page_cache_release(page); +			put_page(page);  			if (error == -EEXIST) {  				error = 0;  				goto find_page; @@ -1817,10 +1817,10 @@ no_cached_page:  out:  	ra->prev_pos = prev_index; -	ra->prev_pos <<= PAGE_CACHE_SHIFT; +	ra->prev_pos <<= PAGE_SHIFT;  	ra->prev_pos |= prev_offset; -	*ppos = ((loff_t)index << PAGE_CACHE_SHIFT) + offset; +	*ppos = ((loff_t)index << PAGE_SHIFT) + offset;  	file_accessed(filp);  	return written ? written : error;  } @@ -1912,7 +1912,7 @@ static int page_cache_read(struct file *file, pgoff_t offset, gfp_t gfp_mask)  		else if (ret == -EEXIST)  			ret = 0; /* losing race to add is OK */ -		page_cache_release(page); +		put_page(page);  	} while (ret == AOP_TRUNCATED_PAGE); @@ -2022,8 +2022,8 @@ int filemap_fault(struct vm_area_struct *vma, struct vm_fault *vmf)  	loff_t size;  	int ret = 0; -	size = round_up(i_size_read(inode), PAGE_CACHE_SIZE); -	if (offset >= size >> PAGE_CACHE_SHIFT) +	size = round_up(i_size_read(inode), PAGE_SIZE); +	if (offset >= size >> PAGE_SHIFT)  		return VM_FAULT_SIGBUS;  	/* @@ -2049,7 +2049,7 @@ retry_find:  	}  	if (!lock_page_or_retry(page, vma->vm_mm, vmf->flags)) { -		page_cache_release(page); +		put_page(page);  		return ret | VM_FAULT_RETRY;  	} @@ -2072,10 +2072,10 @@ retry_find:  	 * Found the page and have a reference on it.  	 * We must recheck i_size under page lock.  	 */ -	size = round_up(i_size_read(inode), PAGE_CACHE_SIZE); -	if (unlikely(offset >= size >> PAGE_CACHE_SHIFT)) { +	size = round_up(i_size_read(inode), PAGE_SIZE); +	if (unlikely(offset >= size >> PAGE_SHIFT)) {  		unlock_page(page); -		page_cache_release(page); +		put_page(page);  		return VM_FAULT_SIGBUS;  	} @@ -2120,7 +2120,7 @@ page_not_uptodate:  		if (!PageUptodate(page))  			error = -EIO;  	} -	page_cache_release(page); +	put_page(page);  	if (!error || error == AOP_TRUNCATED_PAGE)  		goto retry_find; @@ -2164,7 +2164,7 @@ repeat:  		/* Has the page moved? */  		if (unlikely(page != *slot)) { -			page_cache_release(page); +			put_page(page);  			goto repeat;  		} @@ -2178,8 +2178,8 @@ repeat:  		if (page->mapping != mapping || !PageUptodate(page))  			goto unlock; -		size = round_up(i_size_read(mapping->host), PAGE_CACHE_SIZE); -		if (page->index >= size >> PAGE_CACHE_SHIFT) +		size = round_up(i_size_read(mapping->host), PAGE_SIZE); +		if (page->index >= size >> PAGE_SHIFT)  			goto unlock;  		pte = vmf->pte + page->index - vmf->pgoff; @@ -2195,7 +2195,7 @@ repeat:  unlock:  		unlock_page(page);  skip: -		page_cache_release(page); +		put_page(page);  next:  		if (iter.index == vmf->max_pgoff)  			break; @@ -2278,7 +2278,7 @@ static struct page *wait_on_page_read(struct page *page)  	if (!IS_ERR(page)) {  		wait_on_page_locked(page);  		if (!PageUptodate(page)) { -			page_cache_release(page); +			put_page(page);  			page = ERR_PTR(-EIO);  		}  	} @@ -2301,7 +2301,7 @@ repeat:  			return ERR_PTR(-ENOMEM);  		err = add_to_page_cache_lru(page, mapping, index, gfp);  		if (unlikely(err)) { -			page_cache_release(page); +			put_page(page);  			if (err == -EEXIST)  				goto repeat;  			/* Presumably ENOMEM for radix tree node */ @@ -2311,7 +2311,7 @@ repeat:  filler:  		err = filler(data, page);  		if (err < 0) { -			page_cache_release(page); +			put_page(page);  			return ERR_PTR(err);  		} @@ -2364,7 +2364,7 @@ filler:  	/* Case c or d, restart the operation */  	if (!page->mapping) {  		unlock_page(page); -		page_cache_release(page); +		put_page(page);  		goto repeat;  	} @@ -2511,7 +2511,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)  	struct iov_iter data;  	write_len = iov_iter_count(from); -	end = (pos + write_len - 1) >> PAGE_CACHE_SHIFT; +	end = (pos + write_len - 1) >> PAGE_SHIFT;  	written = filemap_write_and_wait_range(mapping, pos, pos + write_len - 1);  	if (written) @@ -2525,7 +2525,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)  	 */  	if (mapping->nrpages) {  		written = invalidate_inode_pages2_range(mapping, -					pos >> PAGE_CACHE_SHIFT, end); +					pos >> PAGE_SHIFT, end);  		/*  		 * If a page can not be invalidated, return 0 to fall back  		 * to buffered write. @@ -2550,7 +2550,7 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos)  	 */  	if (mapping->nrpages) {  		invalidate_inode_pages2_range(mapping, -					      pos >> PAGE_CACHE_SHIFT, end); +					      pos >> PAGE_SHIFT, end);  	}  	if (written > 0) { @@ -2611,8 +2611,8 @@ ssize_t generic_perform_write(struct file *file,  		size_t copied;		/* Bytes copied from user */  		void *fsdata; -		offset = (pos & (PAGE_CACHE_SIZE - 1)); -		bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset, +		offset = (pos & (PAGE_SIZE - 1)); +		bytes = min_t(unsigned long, PAGE_SIZE - offset,  						iov_iter_count(i));  again: @@ -2665,7 +2665,7 @@ again:  			 * because not all segments in the iov can be copied at  			 * once without a pagefault.  			 */ -			bytes = min_t(unsigned long, PAGE_CACHE_SIZE - offset, +			bytes = min_t(unsigned long, PAGE_SIZE - offset,  						iov_iter_single_seg_count(i));  			goto again;  		} @@ -2752,8 +2752,8 @@ ssize_t __generic_file_write_iter(struct kiocb *iocb, struct iov_iter *from)  			iocb->ki_pos = endbyte + 1;  			written += status;  			invalidate_mapping_pages(mapping, -						 pos >> PAGE_CACHE_SHIFT, -						 endbyte >> PAGE_CACHE_SHIFT); +						 pos >> PAGE_SHIFT, +						 endbyte >> PAGE_SHIFT);  		} else {  			/*  			 * We don't know how much we wrote, so just return  | 
