[CRIU] [PATCH 3/9] cr: introduced the macro P() to convert an integer to unsigned long
Andrew Vagin
avagin at parallels.com
Wed Jan 16 04:18:16 EST 2013
On Wed, Jan 16, 2013 at 12:28:25PM +0400, Alexander Kartashov wrote:
>
> Signed-off-by: Alexander Kartashov <alekskartashov at parallels.com>
> ---
> arch/x86/include/asm/types.h | 2 ++
> cr-dump.c | 2 +-
> cr-restore.c | 12 ++++++------
> parasite-syscall.c | 6 +++---
> pie/parasite.c | 4 ++--
> pie/restorer.c | 12 ++++++------
> pipes.c | 2 +-
> sk-inet.c | 4 ++--
> sk-packet.c | 2 +-
> util.c | 4 ++--
> 10 files changed, 26 insertions(+), 24 deletions(-)
>
> diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h
> index 837daa8..75e256c 100644
> --- a/arch/x86/include/asm/types.h
> +++ b/arch/x86/include/asm/types.h
> @@ -280,4 +280,6 @@ typedef struct {
>
> typedef UserX86RegsEntry UserRegsEntry;
>
> +#define P(i) i
> +
> #endif /* __CR_ASM_TYPES_H__ */
> diff --git a/cr-dump.c b/cr-dump.c
> index 4a1e9e9..aeea461 100644
> --- a/cr-dump.c
> +++ b/cr-dump.c
> @@ -658,7 +658,7 @@ static int get_task_futex_robust_list(pid_t pid, ThreadCoreEntry *info)
> return -1;
> }
>
> - info->futex_rla = (u64)head;
> + info->futex_rla = (u64)P(head);
struct robust_list_head *head = NULL;
P convers an integer to unsigned long.
head is pointer...
Could you show a warrning message?
> info->futex_rla_len = (u32)len;
>
> return 0;
> diff --git a/cr-restore.c b/cr-restore.c
> index b4e489a..c262c73 100644
> --- a/cr-restore.c
> +++ b/cr-restore.c
> @@ -217,7 +217,7 @@ static int map_private_vma(pid_t pid, struct vma_area *vma, void *tgt_addr,
> p->vma.start == vma->vma.start) {
> pr_info("COW 0x%016lx-0x%016lx 0x%016lx vma\n",
> vma->vma.start, vma->vma.end, vma->vma.pgoff);
> - paddr = (void *) vma_premmaped_start(&p->vma);
> + paddr = (void *)P(vma_premmaped_start(&p->vma));
> break;
> }
>
> @@ -309,8 +309,8 @@ static int restore_priv_vma_content(pid_t pid)
> return -1;
> }
>
> - p = (void *) (va - vma->vma.start +
> - vma_premmaped_start(&vma->vma));
> + p = (void *) (va - P(vma->vma.start) +
> + P(vma_premmaped_start(&vma->vma)));
> if (memcmp(p, buf, PAGE_SIZE) == 0) {
> nr_shared++;
> continue;
> @@ -324,7 +324,7 @@ static int restore_priv_vma_content(pid_t pid)
> /* Remove pages, which were not shared with a child */
> list_for_each_entry(vma, &rst_vma_list, list) {
> unsigned long size, i = 0;
> - void *addr = (void *) vma_premmaped_start(&vma->vma);
> + void *addr = (void *) P(vma_premmaped_start(&vma->vma));
>
> if (vma->ppage_bitmap == NULL)
> continue;
> @@ -529,9 +529,9 @@ static int prepare_sigactions(int pid)
> if (ret < 0)
> break;
>
> - ASSIGN_TYPED(act.rt_sa_handler, e->sigaction);
> + ASSIGN_TYPED(act.rt_sa_handler, P(e->sigaction));
> ASSIGN_TYPED(act.rt_sa_flags, e->flags);
> - ASSIGN_TYPED(act.rt_sa_restorer, e->restorer);
> + ASSIGN_TYPED(act.rt_sa_restorer, P(e->restorer));
> ASSIGN_TYPED(act.rt_sa_mask.sig[0], e->mask);
>
> sa_entry__free_unpacked(e, NULL);
> diff --git a/parasite-syscall.c b/parasite-syscall.c
> index af71878..33a58da 100644
> --- a/parasite-syscall.c
> +++ b/parasite-syscall.c
> @@ -362,7 +362,7 @@ int parasite_dump_thread_seized(struct parasite_ctl *ctl, struct pid *tid,
> ret = parasite_execute_by_pid(PARASITE_CMD_DUMP_THREAD, ctl, tid->real);
>
> memcpy(&core->thread_core->blk_sigset, &args->blocked, sizeof(args->blocked));
> - CORE_THREAD_ARCH_INFO(core)->clear_tid_addr = (u64)args->tid_addr;
> + CORE_THREAD_ARCH_INFO(core)->clear_tid_addr = (u64)P(args->tid_addr);
> tid->virt = args->tid;
> core_put_tls(core, args->tls);
>
> @@ -389,9 +389,9 @@ int parasite_dump_sigacts_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_f
> if (sig == SIGSTOP || sig == SIGKILL)
> continue;
>
> - ASSIGN_TYPED(se.sigaction, args->sas[i].rt_sa_handler);
> + ASSIGN_TYPED(se.sigaction, P(args->sas[i].rt_sa_handler));
> ASSIGN_TYPED(se.flags, args->sas[i].rt_sa_flags);
> - ASSIGN_TYPED(se.restorer, args->sas[i].rt_sa_restorer);
> + ASSIGN_TYPED(se.restorer, P(args->sas[i].rt_sa_restorer));
> ASSIGN_TYPED(se.mask, args->sas[i].rt_sa_mask.sig[0]);
>
> if (pb_write_one(fd, &se, PB_SIGACT) < 0)
> diff --git a/pie/parasite.c b/pie/parasite.c
> index 3e444ea..4d98701 100644
> --- a/pie/parasite.c
> +++ b/pie/parasite.c
> @@ -179,7 +179,7 @@ static int dump_pages(struct parasite_dump_pages_args *args)
> if (!(args->vma_entry.prot & PROT_READ)) {
> prot_old = (unsigned long)args->vma_entry.prot;
> prot_new = prot_old | PROT_READ;
> - ret = sys_mprotect((void *)args->vma_entry.start,
> + ret = sys_mprotect((void *)P(args->vma_entry.start),
> (unsigned long)vma_entry_len(&args->vma_entry),
> prot_new);
> if (ret) {
> @@ -215,7 +215,7 @@ static int dump_pages(struct parasite_dump_pages_args *args)
> * Don't left pages readable if they were not.
> */
> if (prot_old != prot_new) {
> - ret = sys_mprotect((void *)args->vma_entry.start,
> + ret = sys_mprotect((void *)P(args->vma_entry.start),
> (unsigned long)vma_entry_len(&args->vma_entry),
> prot_old);
> if (ret) {
> diff --git a/pie/restorer.c b/pie/restorer.c
> index c01fce1..76b7371 100644
> --- a/pie/restorer.c
> +++ b/pie/restorer.c
> @@ -154,10 +154,10 @@ static void restore_rlims(struct task_restore_core_args *ta)
> static int restore_thread_common(struct rt_sigframe *sigframe,
> struct thread_restore_args *args)
> {
> - sys_set_tid_address((int *)args->clear_tid_addr);
> + sys_set_tid_address((int *)P(args->clear_tid_addr));
>
> if (args->has_futex) {
> - if (sys_set_robust_list((void *)args->futex_rla, args->futex_rla_len)) {
> + if (sys_set_robust_list((void *)P(args->futex_rla), args->futex_rla_len)) {
> pr_err("Robust list err\n");
> return -1;
> }
> @@ -238,7 +238,7 @@ static u64 restore_mapping(const VmaEntry *vma_entry)
> u64 addr;
>
> if (vma_entry_is(vma_entry, VMA_AREA_SYSVIPC))
> - return sys_shmat(vma_entry->fd, (void *)vma_entry->start,
> + return sys_shmat(vma_entry->fd, (void *)P(vma_entry->start),
> (vma_entry->prot & PROT_WRITE) ? 0 : SHM_RDONLY);
>
> /*
> @@ -255,14 +255,14 @@ static u64 restore_mapping(const VmaEntry *vma_entry)
> prot |= PROT_WRITE;
>
> pr_debug("\tmmap(%lx -> %lx, %x %x %d\n",
> - vma_entry->start, vma_entry->end,
> + P(vma_entry->start), P(vma_entry->end),
> prot, flags, (int)vma_entry->fd);
> /*
> * Should map memory here. Note we map them as
> * writable since we're going to restore page
> * contents.
> */
> - addr = sys_mmap((void *)vma_entry->start,
> + addr = sys_mmap((void *)P(vma_entry->start),
> vma_entry_len(vma_entry),
> prot, flags,
> vma_entry->fd,
> @@ -518,7 +518,7 @@ long __export_restore_task(struct task_restore_core_args *args)
> if (vma_entry->prot & PROT_WRITE)
> continue;
>
> - sys_mprotect((void *)vma_entry->start,
> + sys_mprotect((void *)P(vma_entry->start),
> vma_entry_len(vma_entry),
> vma_entry->prot);
> }
> diff --git a/pipes.c b/pipes.c
> index 16a2454..8b801b8 100644
> --- a/pipes.c
> +++ b/pipes.c
> @@ -186,7 +186,7 @@ int restore_pipe_data(int img_type, int pfd, u32 id, struct pipe_data_rst **hash
>
> if (ret == 0 || ret > iov.iov_len /* sanity */) {
> pr_err("%#x: Wanted to restore %lu bytes, but got %d\n", id,
> - iov.iov_len, ret);
> + P(iov.iov_len), ret);
> ret = -1;
> goto err;
> }
> diff --git a/sk-inet.c b/sk-inet.c
> index f8b47c0..5a65101 100644
> --- a/sk-inet.c
> +++ b/sk-inet.c
> @@ -426,8 +426,8 @@ static int inet_validate_address(InetSkEntry *ie)
> return 0;
>
> pr_err("Addr len mismatch f %d ss %lu ds %lu\n", ie->family,
> - pb_repeated_size(ie, src_addr),
> - pb_repeated_size(ie, dst_addr));
> + P(pb_repeated_size(ie, src_addr)),
> + P(pb_repeated_size(ie, dst_addr)));
>
> return -1;
> }
> diff --git a/sk-packet.c b/sk-packet.c
> index 9b667c4..e05caa3 100644
> --- a/sk-packet.c
> +++ b/sk-packet.c
> @@ -344,7 +344,7 @@ static int restore_mreqs(int sk, PacketSockEntry *pse)
> pr_info("Restoring mreq type %d\n", ml->type);
>
> if (ml->addr.len > sizeof(mreq.mr_address)) {
> - pr_err("To big mcaddr %lu\n", ml->addr.len);
> + pr_err("To big mcaddr %lu\n", P(ml->addr.len));
> return -1;
> }
>
> diff --git a/util.c b/util.c
> index 93678d2..ca7de97 100644
> --- a/util.c
> +++ b/util.c
> @@ -388,7 +388,7 @@ int copy_file(int fd_in, int fd_out, size_t bytes)
> if (ret == 0) {
> if (bytes && (written != bytes)) {
> pr_err("Ghost file size mismatch %lu/%lu\n",
> - written, bytes);
> + P(written), P(bytes));
> return -1;
> }
> break;
> @@ -435,7 +435,7 @@ void *shmalloc(size_t bytes)
> void *ret;
>
> if (bytes > SH_BUF_CHUNK) {
> - pr_err("Too big shared buffer requested %lu\n", bytes);
> + pr_err("Too big shared buffer requested %lu\n", P(bytes));
> return NULL;
> }
>
> --
> 1.7.10.4
>
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