When updating the inode information after a change in allocation,
convert the change into the same units as the inode's i_blocks count
before comparing it in an assertion.

Also, change the comparison so that it is still possible to set i_blocks
to zero by adding -i_blocks, something that was previously only possible
because of the difference in units.

Signed-off-by: Tim Smith <tim.sm...@citrix.com>
---
 fs/gfs2/inode.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index 793808263c6d..c8d0b05cf6ac 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -59,8 +59,8 @@ static inline u64 gfs2_get_inode_blocks(const struct inode 
*inode)
 
 static inline void gfs2_add_inode_blocks(struct inode *inode, s64 change)
 {
-       gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks > -change));
-       change *= (GFS2_SB(inode)->sd_sb.sb_bsize/GFS2_BASIC_BLOCK);
+       change <<= (GFS2_SB(inode)->sd_sb.sb_bsize_shift - 
GFS2_BASIC_BLOCK_SHIFT);
+       gfs2_assert(GFS2_SB(inode), (change >= 0 || inode->i_blocks >= 
-change));
        inode->i_blocks += change;
 }
 
-- 
2.17.2


-- 
Tim Smith <tim.sm...@citrix.com>


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