[PATCH 4.4 35/92] gfs2: take jdata unstuff into account in do_grow

[Greg Kroah-Hartman]

From: Bob Peterson <rpeterso@xxxxxxxxxx>

[ Upstream commit bc0205612bbd4dd4026d4ba6287f5643c37366ec ]

Before this patch, function do_grow would not reserve enough journal
blocks in the transaction to unstuff jdata files while growing them.
This patch adds the logic to add one more block if the file to grow
is jdata.

Signed-off-by: Bob Peterson <rpeterso@xxxxxxxxxx>
Reviewed-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 fs/gfs2/bmap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 09476bb8f6cd0..f0302e09eff99 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1235,6 +1235,8 @@ static int do_grow(struct inode *inode, u64 size)
 	}
 
 	error = gfs2_trans_begin(sdp, RES_DINODE + RES_STATFS + RES_RG_BIT +
+				 (unstuff &&
+				  gfs2_is_jdata(ip) ? RES_JDATA : 0) +
 				 (sdp->sd_args.ar_quota == GFS2_QUOTA_OFF ?
 				  0 : RES_QUOTA), 0);
 	if (error)
-- 
2.20.1