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Dump all special files in one place

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Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov 2012-02-07 19:20:17 +04:00
parent 76a249282e
commit 60f180aa77
1 changed files with 14 additions and 31 deletions
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45
cr-dump.c
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@ -138,44 +138,32 @@ err:
return ret;
}
static int dump_cwd(int pid_dir, struct cr_fdset *cr_fdset)
static int dump_task_special_files(int pid_dir, struct cr_fdset *cr_fdset)
{
int ret = -1;
int fd;
struct fd_parms p = {
.fd_name = FDINFO_CWD,
.pos = 0,
.flags = 0,
.id = NULL,
};
struct fd_parms params;
int fd, ret;
/* Dump /proc/pid/cwd */
params = (struct fd_parms){ .fd_name = FDINFO_CWD, };
fd = open_proc(pid_dir, "cwd");
if (fd < 0) {
pr_perror("Failed to openat cwd");
return -1;
}
ret = dump_one_reg_file(FDINFO_FD, &params, fd, cr_fdset, 1);
if (ret)
return ret;
return dump_one_reg_file(FDINFO_FD, &p, fd, cr_fdset, 1);
}
static int dump_exe(int pid_dir, struct cr_fdset *cr_fdset)
{
int ret = -1;
int fd;
struct fd_parms p = {
.fd_name = FDINFO_EXE,
.pos = 0,
.flags = 0,
.id = NULL,
};
/* Dump /proc/pid/exe */
params = (struct fd_parms){ .fd_name = FDINFO_EXE, };
fd = open_proc(pid_dir, "exe");
if (fd < 0) {
pr_perror("Failed to openat exe");
return -1;
}
ret = dump_one_reg_file(FDINFO_FD, &params, fd, cr_fdset, 1);
return dump_one_reg_file(FDINFO_FD, &p, fd, cr_fdset, 1);
return ret;
}
static int dump_pipe_and_data(int lfd, struct pipe_entry *e,
@ -360,13 +348,8 @@ static int dump_task_files(pid_t pid, int pid_dir, struct cr_fdset *cr_fdset)
* to re-read them in restorer, so better to make it
* fast.
*/
if (dump_cwd(pid_dir, cr_fdset)) {
pr_perror("Can't dump %d's cwd", pid);
return -1;
}
if (dump_exe(pid_dir, cr_fdset)) {
pr_perror("Can't dump %d's exe", pid);
if (dump_task_special_files(pid_dir, cr_fdset)) {
pr_err("Can't dump special files\n");
return -1;
}