[CRIU] [PATCH v2] filemap: collect mapped file fs type

[Stanislav Kinsburskiy]

This is essential to define whether this file is located on NFS (and thus has
to be "link-remapped") or not (see nfs_silly_renamed).

v2:
Compilation issue fixed

Signed-off-by: Stanislav Kinsburskiy <skinsbursky at virtuozzo.com>
---
 criu/cr-dump.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/criu/cr-dump.c b/criu/cr-dump.c
index 06ff2d7..2288908 100644
--- a/criu/cr-dump.c
+++ b/criu/cr-dump.c
@@ -365,12 +365,20 @@ static int dump_filemap(struct vma_area *vma_area, int fd)
 	struct fd_parms p = FD_PARMS_INIT;
 	VmaEntry *vma = vma_area->e;
 	int ret = 0;
+	struct statfs fst;
 	u32 id;
 
 	BUG_ON(!vma_area->vmst);
 	p.stat = *vma_area->vmst;
 	p.mnt_id = vma_area->mnt_id;
 
+	if (fstatfs(fd, &fst)) {
+		pr_perror("Unable to statfs fd %d", fd);
+		return -1;
+	}
+
+	p.fs_type = fst.f_type;
+
 	/*
 	 * AUFS support to compensate for the kernel bug
 	 * exposing branch pathnames in map_files.