From: Omar Sandoval <osandov@xxxxxx>
Opening with O_ALLOW_ENCODED also requires O_CLOEXEC. Let's add
O_CLOEXEC now in preparation. btrfs receive doesn't exec anything, so
this should be a no-op.
Signed-off-by: Omar Sandoval <osandov@xxxxxx>
---
cmds/receive.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/cmds/receive.c b/cmds/receive.c
index 2aaba3ff..2c56cea6 100644
--- a/cmds/receive.c
+++ b/cmds/receive.c
@@ -654,7 +654,11 @@ static int open_inode_for_write(struct btrfs_receive *rctx, const char *path)
rctx->write_fd = -1;
}
- rctx->write_fd = open(path, O_RDWR);
+ /*
+ * When opening with O_ALLOW_ENCODED, O_CLOEXEC must also be specified.
+ * We might as well always use it even though we don't exec anything.
+ */
+ rctx->write_fd = open(path, O_RDWR | O_CLOEXEC);
if (rctx->write_fd < 0) {
ret = -errno;
error("cannot open %s: %m", path);
--
2.29.2
