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authorBob Peterson <rpeterso@redhat.com>2011-11-18 19:58:32 +0400
committerSteven Whitehouse <swhiteho@redhat.com>2011-11-21 14:04:09 +0400
commit6e87ed0fc93ffbe2aec296e6912b1dcb19034d6c (patch)
tree4f4ac522d34f35de3e3671996ddc35977aaa49ad /fs/gfs2/rgrp.h
parent4442f2e03ed9646664c94e197e637b03324a6664 (diff)
downloadlinux-6e87ed0fc93ffbe2aec296e6912b1dcb19034d6c.tar.xz
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 <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.h')
-rw-r--r--fs/gfs2/rgrp.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 4cb560813973..b3b61b8f6d8f 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -39,8 +39,8 @@ static inline void gfs2_alloc_put(struct gfs2_inode *ip)
extern int gfs2_inplace_reserve(struct gfs2_inode *ip);
extern void gfs2_inplace_release(struct gfs2_inode *ip);
-extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
- int dinode, u64 *generation);
+extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
+ bool dinode, u64 *generation);
extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);