[Cluster-devel] [PATCH] gfs2: Fix gfs2_file_buffered_write endless loop workaround

[Andreas Gruenbacher]

Since commit 554c577cee95b, gfs2_file_buffered_write() can accidentally
return a truncated iov_iter, which will break generic_write_sync() in
gfs2_file_write_iter().  Fix that.

Fixes: 554c577cee95b ("gfs2: Prevent endless loops in gfs2_file_buffered_write")
Signed-off-by: Andreas Gruenbacher <agrue...@redhat.com>
---
 fs/gfs2/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 44bb886eefce..19a038bc33bc 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -1084,6 +1084,7 @@ static ssize_t gfs2_file_buffered_write(struct kiocb 
*iocb,
        gfs2_holder_uninit(gh);
        if (statfs_gh)
                kfree(statfs_gh);
+       from->count = orig_count - read;
        return read ? read : ret;
 }
 
-- 
2.33.1