[CRIU] [PATCH cr 7/8] util: add ability to change a proc mount point

[Andrey Vagin]

Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
 include/util.h |    1 +
 util.c         |    8 +++++++-
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/include/util.h b/include/util.h
index 714bfdd..520b06a 100644
--- a/include/util.h
+++ b/include/util.h
@@ -169,6 +169,7 @@ extern int reopen_fd_as_safe(char *file, int line, int new_fd, int old_fd, bool
 #define reopen_fd_as(new_fd, old_fd)		reopen_fd_as_safe(__FILE__, __LINE__, new_fd, old_fd, false)
 #define reopen_fd_as_nocheck(new_fd, old_fd)	reopen_fd_as_safe(__FILE__, __LINE__, new_fd, old_fd, true)
 
+void set_proc_mountpoint(char *path);
 int open_pid_proc(pid_t pid);
 int close_pid_proc(void);
 
diff --git a/util.c b/util.c
index ee35f70..2bfb7c6 100644
--- a/util.c
+++ b/util.c
@@ -219,6 +219,12 @@ int close_pid_proc(void)
 	return ret;
 }
 
+static char proc_mountpoint[PATH_MAX] = "/proc";
+void set_proc_mountpoint(char *path)
+{
+	strcpy(proc_mountpoint, path);
+}
+
 inline int open_pid_proc(pid_t pid)
 {
 	char path[18];
@@ -228,7 +234,7 @@ inline int open_pid_proc(pid_t pid)
 		return open_proc_fd;
 
 	close_pid_proc();
-	sprintf(path, "/proc/%d", pid);
+	sprintf(path, "%s/%d", proc_mountpoint, pid);
 	fd = open(path, O_RDONLY);
 	if (fd < 0)
 		pr_perror("Can't open %s", path);
-- 
1.7.1