From: Bob Peterson <[email protected]> This patch allocates a block reservation structure before growing or shrinking a file. Without this structure, the grow or shink code can reference the bad pointer.
Signed-off-by: Bob Peterson <[email protected]> Signed-off-by: Steven Whitehouse <[email protected]> diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c index d29d779..df686d1 100644 --- a/fs/gfs2/bmap.c +++ b/fs/gfs2/bmap.c @@ -1288,6 +1288,10 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize) inode_dio_wait(inode); + ret = gfs2_rs_alloc(GFS2_I(inode)); + if (ret) + return ret; + oldsize = inode->i_size; if (newsize >= oldsize) return do_grow(inode, newsize); -- 1.7.4
