From cf914a7d656e62b9dd3e0dffe4f62b953ae6048d Mon Sep 17 00:00:00 2001 From: Rusty Russell Date: Thu, 19 Jul 2007 01:48:08 -0700 Subject: readahead: split ondemand readahead interface into two functions Split ondemand readahead interface into two functions. I think this makes it a little clearer for non-readahead experts (like Rusty). Internally they both call ondemand_readahead(), but the page argument is changed to an obvious boolean flag. Signed-off-by: Rusty Russell Signed-off-by: Fengguang Wu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/ext3/dir.c | 4 ++-- fs/ext4/dir.c | 4 ++-- fs/splice.c | 6 +++--- 3 files changed, 7 insertions(+), 7 deletions(-) (limited to 'fs') diff --git a/fs/ext3/dir.c b/fs/ext3/dir.c index 3c6d384a2c6..c00723a99f4 100644 --- a/fs/ext3/dir.c +++ b/fs/ext3/dir.c @@ -139,10 +139,10 @@ static int ext3_readdir(struct file * filp, pgoff_t index = map_bh.b_blocknr >> (PAGE_CACHE_SHIFT - inode->i_blkbits); if (!ra_has_index(&filp->f_ra, index)) - page_cache_readahead_ondemand( + page_cache_sync_readahead( sb->s_bdev->bd_inode->i_mapping, &filp->f_ra, filp, - NULL, index, 1); + index, 1); filp->f_ra.prev_index = index; bh = ext3_bread(NULL, inode, blk, 0, &err); } diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 0a872a09fed..3ab01c04e00 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -138,10 +138,10 @@ static int ext4_readdir(struct file * filp, pgoff_t index = map_bh.b_blocknr >> (PAGE_CACHE_SHIFT - inode->i_blkbits); if (!ra_has_index(&filp->f_ra, index)) - page_cache_readahead_ondemand( + page_cache_sync_readahead( sb->s_bdev->bd_inode->i_mapping, &filp->f_ra, filp, - NULL, index, 1); + index, 1); filp->f_ra.prev_index = index; bh = ext4_bread(NULL, inode, blk, 0, &err); } diff --git a/fs/splice.c b/fs/splice.c index 6ddd0329f86..22496d2a73f 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -295,8 +295,8 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, * readahead/allocate the rest and fill in the holes. */ if (spd.nr_pages < nr_pages) - page_cache_readahead_ondemand(mapping, &in->f_ra, in, - NULL, index, req_pages - spd.nr_pages); + page_cache_sync_readahead(mapping, &in->f_ra, in, + index, req_pages - spd.nr_pages); error = 0; while (spd.nr_pages < nr_pages) { @@ -352,7 +352,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, page = pages[page_nr]; if (PageReadahead(page)) - page_cache_readahead_ondemand(mapping, &in->f_ra, in, + page_cache_async_readahead(mapping, &in->f_ra, in, page, index, req_pages - page_nr); /* -- cgit v1.2.3