[Cluster-devel] [PATCH 16/25] gfs2: fallocate_chunk: Always initialize struct iomap
Andreas Gruenbacher
agruenba at redhat.com
Mon Aug 13 17:45:46 UTC 2018
In fallocate_chunk, always initialize the iomap before calling
gfs2_iomap_get_alloc: future changes could otherwise cause things like
iomap.flags to leak across calls.
Signed-off-by: Andreas Gruenbacher <agruenba at redhat.com>
Reviewed-by: Bob Peterson <rpeterso at redhat.com>
---
fs/gfs2/file.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index f3c6d78659b1..6d895d39158a 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -877,7 +877,6 @@ static int fallocate_chunk(struct inode *inode, loff_t offset, loff_t len,
struct gfs2_inode *ip = GFS2_I(inode);
loff_t end = offset + len;
struct buffer_head *dibh;
- struct iomap iomap = { };
int error;
error = gfs2_meta_inode_buffer(ip, &dibh);
@@ -893,6 +892,8 @@ static int fallocate_chunk(struct inode *inode, loff_t offset, loff_t len,
}
while (offset < end) {
+ struct iomap iomap = { };
+
error = gfs2_iomap_get_alloc(inode, offset, end - offset,
&iomap);
if (error)
--
2.17.1
More information about the Cluster-devel
mailing list