[PATCH AUTOSEL 5.8 114/132] gfs2: call truncate_inode_pages_final for address space glocks

Sasha Levin
2020-10-26T23:59:22Z

From: Bob Peterson <rpeterso@redhat.com>

[ Upstream commit ee1e2c773e4f4ce2213f9d77cc703b669ca6fa3f ]

Before this patch, we were not calling truncate_inode_pages_final for the
address space for glocks, which left the possibility of a leak. We now
take care of the problem instead of complaining, and we do it during
glock tear-down..

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/gfs2/glock.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index f92876f4f37a1..d8194479b8328 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -270,7 +270,12 @@ static void __gfs2_glock_put(struct gfs2_glock *gl)
gfs2_glock_remove_from_lru(gl);
spin_unlock(&gl->gl_lockref.lock);
GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
- GLOCK_BUG_ON(gl, mapping && mapping->nrpages && !gfs2_withdrawn(sdp));
+ if (mapping) {
+ truncate_inode_pages_final(mapping);
+ if (!gfs2_withdrawn(sdp))
+ GLOCK_BUG_ON(gl, mapping->nrpages ||
+ mapping->nrexceptional);
+ }
trace_gfs2_glock_put(gl);
sdp->sd_lockstruct.ls_ops->lm_put_lock(gl);
}
--
2.25.1