From 6e87ed0fc93ffbe2aec296e6912b1dcb19034d6c Mon Sep 17 00:00:00 2001 From: Bob Peterson Date: Fri, 18 Nov 2011 10:58:32 -0500 Subject: GFS2: move toward a generic multi-block allocator This patch is a revision of the one I previously posted. I tried to integrate all the suggestions Steve gave. The purpose of the patch is to change function gfs2_alloc_block (allocate either a dinode block or an extent of data blocks) to a more generic gfs2_alloc_blocks function that can allocate both a dinode _and_ an extent of data blocks in the same call. This will ultimately help us create a multi-block reservation scheme to reduce file fragmentation. This patch moves more toward a generic multi-block allocator that takes a pointer to the number of data blocks to allocate, plus whether or not to allocate a dinode. In theory, it could be called to allocate (1) a single dinode block, (2) a group of one or more data blocks, or (3) a dinode plus several data blocks. Signed-off-by: Bob Peterson Signed-off-by: Steven Whitehouse --- fs/gfs2/bmap.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/gfs2/bmap.c') diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index b69235ba2251..cb74312eb270 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -133,7 +133,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page) and write it out to disk */ unsigned int n = 1; - error = gfs2_alloc_block(ip, &block, &n, 0, NULL); + error = gfs2_alloc_blocks(ip, &block, &n, 0, NULL); if (error) goto out_brelse; if (isdir) { @@ -503,7 +503,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock, do { int error; n = blks - alloced; - error = gfs2_alloc_block(ip, &bn, &n, 0, NULL); + error = gfs2_alloc_blocks(ip, &bn, &n, 0, NULL); if (error) return error; alloced += n; -- cgit v1.2.2