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files: dump fdinfo per files_id instead of pid

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A few processes can share one fdtable.

Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Andrey Vagin
2013-01-11 18:16:25 +04:00
committed by Pavel Emelyanov
parent bb25ed38c8
commit d50c786c7e
8 changed files with 46 additions and 18 deletions
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23
files.c
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@@ -217,19 +217,32 @@ int prepare_ctl_tty(int pid, struct rst_info *rst_info, u32 ctl_tty_id)
return 0;
}
int prepare_fd_pid(int pid, struct rst_info *rst_info)
int prepare_fd_pid(struct pstree_item *item)
{
int fdinfo_fd, ret = 0;
pid_t pid = item->pid.virt;
struct rst_info *rst_info = item->rst;
INIT_LIST_HEAD(&rst_info->fds);
INIT_LIST_HEAD(&rst_info->eventpoll);
INIT_LIST_HEAD(&rst_info->tty_slaves);
fdinfo_fd = open_image_ro(CR_FD_FDINFO, pid);
if (fdinfo_fd < 0) {
if (errno == ENOENT)
if (!fdinfo_per_id) {
fdinfo_fd = open_image_ro(CR_FD_FDINFO, pid);
if (fdinfo_fd < 0) {
if (errno == ENOENT)
return 0;
return -1;
}
} else {
if (item->ids == NULL) /* zombie */
return 0;
else
if (item->rst->fdt && item->rst->fdt->pid != item->pid.virt)
return 0;
fdinfo_fd = open_image_ro(CR_FD_FDINFO, item->ids->files_id);
if (fdinfo_fd < 0)
return -1;
}