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authorSteven Whitehouse <swhiteho@redhat.com>2008-02-06 10:11:15 +0000
committerSteven Whitehouse <swhiteho@redhat.com>2008-03-31 10:40:47 +0100
commitb45e41d7d56dfef1ae9e02e6c59990066ba82e5c (patch)
treec139447fa57beb3886def4e17449cc34bf40cf3c /fs/gfs2/rgrp.h
parent1639431a3f57b43da1e15e9268a1d691ac01ba26 (diff)
[GFS2] Add extent allocation to block allocator
Rather than having to allocate a single block at a time, this patch allows the block allocator to allocate an extent. Since there is no difference (so far as the block allocator is concerned) between data blocks and indirect blocks, it is posible to allocate a single extent and for the caller to unrevoke just the blocks required for indirect blocks. Currently the only bit of GFS2 to make use of this feature is the build height function. The intention is that gfs2_block_map will be changed to make use of this feature in future patches. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/rgrp.h')
-rw-r--r--fs/gfs2/rgrp.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 5e66613b33d..3181c7e624b 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -46,7 +46,7 @@ void gfs2_inplace_release(struct gfs2_inode *ip);
unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block);
-u64 gfs2_alloc_block(struct gfs2_inode *ip);
+u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n);
u64 gfs2_alloc_di(struct gfs2_inode *ip, u64 *generation);
void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen);