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parasite-syscall: Add "trap" postfix to parasite execute functions

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They are relying on trap being issued at the end of execution
so to distinguish it with future daemon mode add "trap" postfix
to them.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
This commit is contained in:
Cyrill Gorcunov
2013-05-24 16:20:05 +04:00
committed by Pavel Emelyanov
parent 64ecb2746c
commit fe13977b1e
5 changed files with 26 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
arch/arm/crtools.c
View File

@@ -77,7 +77,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
regs.ARM_r5 = arg6;
parasite_setup_regs(ctl->syscall_ip, 0, &regs);
err = __parasite_execute(ctl, ctl->pid.real, &regs,
err = __parasite_execute_trap(ctl, ctl->pid.real, &regs,
&ctl->threads[0].regs_orig);
if (err)
return err;

2
arch/x86/crtools.c
View File

@@ -101,7 +101,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
regs.r9 = arg6;
parasite_setup_regs(ctl->syscall_ip, 0, &regs);
err = __parasite_execute(ctl, ctl->pid.real, &regs,
err = __parasite_execute_trap(ctl, ctl->pid.real, &regs,
&ctl->threads[0].regs_orig);
if (err)
return err;

4
include/parasite-syscall.h
View File

@@ -45,7 +45,7 @@ extern int parasite_dump_sigacts_seized(struct parasite_ctl *ctl, struct cr_fdse
extern int parasite_dump_itimers_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_fdset);
void *parasite_args_s(struct parasite_ctl *ctl, int args_size);
int parasite_execute(unsigned int cmd, struct parasite_ctl *ctl);
int parasite_execute_trap(unsigned int cmd, struct parasite_ctl *ctl);
int parasite_send_fd(struct parasite_ctl *ctl, int fd);
struct parasite_dump_misc;
@@ -93,7 +93,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
unsigned long arg5,
unsigned long arg6);
extern int __parasite_execute(struct parasite_ctl *ctl, pid_t pid,
extern int __parasite_execute_trap(struct parasite_ctl *ctl, pid_t pid,
user_regs_struct_t *regs,
user_regs_struct_t *regs_orig);
extern bool arch_can_dump_task(pid_t pid);

6
mem.c
View File

@@ -377,7 +377,7 @@ static int __parasite_dump_pages_seized(struct parasite_ctl *ctl,
pr_debug("PPB: %d pages %d segs %u pipe %d off\n",
args->nr_pages, args->nr_segs, ppb->pipe_size, args->off);
ret = parasite_execute(PARASITE_CMD_DUMPPAGES, ctl);
ret = parasite_execute_trap(PARASITE_CMD_DUMPPAGES, ctl);
if (ret < 0)
goto out_pp;
@@ -443,7 +443,7 @@ int parasite_dump_pages_seized(struct parasite_ctl *ctl,
*/
pargs->add_prot = PROT_READ;
ret = parasite_execute(PARASITE_CMD_MPROTECT_VMAS, ctl);
ret = parasite_execute_trap(PARASITE_CMD_MPROTECT_VMAS, ctl);
if (ret) {
pr_err("Can't dump unprotect vmas with parasite\n");
return ret;
@@ -454,7 +454,7 @@ int parasite_dump_pages_seized(struct parasite_ctl *ctl,
pr_err("Can't dump page with parasite\n");
pargs->add_prot = 0;
ret = parasite_execute(PARASITE_CMD_MPROTECT_VMAS, ctl);
ret = parasite_execute_trap(PARASITE_CMD_MPROTECT_VMAS, ctl);
if (ret) {
pr_err("Can't rollback unprotected vmas with parasite\n");
ret = -1;

38
parasite-syscall.c
View File

@@ -63,7 +63,7 @@ static struct vma_area *get_vma_by_ip(struct list_head *vma_area_list, unsigned
}
/* we run at @regs->ip */
int __parasite_execute(struct parasite_ctl *ctl, pid_t pid,
int __parasite_execute_trap(struct parasite_ctl *ctl, pid_t pid,
user_regs_struct_t *regs,
user_regs_struct_t *regs_orig)
{
@@ -199,7 +199,7 @@ void *parasite_args_s(struct parasite_ctl *ctl, int args_size)
ctl->addr_args; \
})
static int parasite_execute_by_id(unsigned int cmd, struct parasite_ctl *ctl, int id)
static int parasite_execute_trap_by_id(unsigned int cmd, struct parasite_ctl *ctl, int id)
{
struct parasite_thread_ctl *thread = &ctl->threads[id];
user_regs_struct_t regs = thread->regs_orig;
@@ -210,7 +210,7 @@ static int parasite_execute_by_id(unsigned int cmd, struct parasite_ctl *ctl, in
parasite_setup_regs(ctl->parasite_ip, thread->rstack, &regs);
ret = __parasite_execute(ctl, pid, &regs, &thread->regs_orig);
ret = __parasite_execute_trap(ctl, pid, &regs, &thread->regs_orig);
if (ret == 0)
ret = (int)REG_RES(regs);
@@ -226,9 +226,9 @@ static int parasite_execute_by_id(unsigned int cmd, struct parasite_ctl *ctl, in
return ret;
}
int parasite_execute(unsigned int cmd, struct parasite_ctl *ctl)
int parasite_execute_trap(unsigned int cmd, struct parasite_ctl *ctl)
{
return parasite_execute_by_id(cmd, ctl, 0);
return parasite_execute_trap_by_id(cmd, ctl, 0);
}
static int munmap_seized(struct parasite_ctl *ctl, void *addr, size_t length)
@@ -274,7 +274,7 @@ static int parasite_set_logfd(struct parasite_ctl *ctl, pid_t pid)
a = parasite_args(ctl, struct parasite_log_args);
a->log_level = log_get_loglevel();
ret = parasite_execute(PARASITE_CMD_CFG_LOG, ctl);
ret = parasite_execute_trap(PARASITE_CMD_CFG_LOG, ctl);
if (ret < 0)
return ret;
@@ -334,7 +334,7 @@ static int parasite_init(struct parasite_ctl *ctl, pid_t pid, int nr_threads)
}
}
if (parasite_execute(PARASITE_CMD_INIT, ctl) < 0) {
if (parasite_execute_trap(PARASITE_CMD_INIT, ctl) < 0) {
pr_err("Can't init parasite\n");
goto err;
}
@@ -360,7 +360,7 @@ int parasite_dump_thread_seized(struct parasite_ctl *ctl, int id,
args = parasite_args(ctl, struct parasite_dump_thread);
args->id = id;
ret = parasite_execute_by_id(PARASITE_CMD_DUMP_THREAD, ctl, id);
ret = parasite_execute_trap_by_id(PARASITE_CMD_DUMP_THREAD, ctl, id);
memcpy(&core->thread_core->blk_sigset, &args->blocked, sizeof(args->blocked));
CORE_THREAD_ARCH_INFO(core)->clear_tid_addr = encode_pointer(args->tid_addr);
@@ -378,7 +378,7 @@ int parasite_dump_sigacts_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_f
args = parasite_args(ctl, struct parasite_dump_sa_args);
ret = parasite_execute(PARASITE_CMD_DUMP_SIGACTS, ctl);
ret = parasite_execute_trap(PARASITE_CMD_DUMP_SIGACTS, ctl);
if (ret < 0)
return ret;
@@ -421,7 +421,7 @@ int parasite_dump_itimers_seized(struct parasite_ctl *ctl, struct cr_fdset *cr_f
args = parasite_args(ctl, struct parasite_dump_itimers_args);
ret = parasite_execute(PARASITE_CMD_DUMP_ITIMERS, ctl);
ret = parasite_execute_trap(PARASITE_CMD_DUMP_ITIMERS, ctl);
if (ret < 0)
return ret;
@@ -441,7 +441,7 @@ int parasite_dump_misc_seized(struct parasite_ctl *ctl, struct parasite_dump_mis
struct parasite_dump_misc *ma;
ma = parasite_args(ctl, struct parasite_dump_misc);
if (parasite_execute(PARASITE_CMD_DUMP_MISC, ctl) < 0)
if (parasite_execute_trap(PARASITE_CMD_DUMP_MISC, ctl) < 0)
return -1;
*misc = *ma;
@@ -455,7 +455,7 @@ struct parasite_tty_args *parasite_dump_tty(struct parasite_ctl *ctl, int fd)
p = parasite_args(ctl, struct parasite_tty_args);
p->fd = fd;
if (parasite_execute(PARASITE_CMD_DUMP_TTY, ctl) < 0)
if (parasite_execute_trap(PARASITE_CMD_DUMP_TTY, ctl) < 0)
return NULL;
return p;
@@ -466,7 +466,7 @@ int parasite_dump_creds(struct parasite_ctl *ctl, CredsEntry *ce)
struct parasite_dump_creds *pc;
pc = parasite_args(ctl, struct parasite_dump_creds);
if (parasite_execute(PARASITE_CMD_DUMP_CREDS, ctl) < 0)
if (parasite_execute_trap(PARASITE_CMD_DUMP_CREDS, ctl) < 0)
return -1;
ce->secbits = pc->secbits;
@@ -493,7 +493,7 @@ int parasite_drain_fds_seized(struct parasite_ctl *ctl,
args = parasite_args_s(ctl, size);
memcpy(args, dfds, size);
ret = parasite_execute(PARASITE_CMD_DRAIN_FDS, ctl);
ret = parasite_execute_trap(PARASITE_CMD_DRAIN_FDS, ctl);
if (ret) {
pr_err("Parasite failed to drain descriptors\n");
goto err;
@@ -544,7 +544,7 @@ int parasite_fixup_vdso(struct parasite_ctl *ctl, pid_t pid,
args->start = vma->vma.start;
args->len = vma_area_len(vma);
if (parasite_execute(PARASITE_CMD_CHECK_VDSO_MARK, ctl)) {
if (parasite_execute_trap(PARASITE_CMD_CHECK_VDSO_MARK, ctl)) {
pr_err("vdso: Parasite failed to poke for mark\n");
ret = -1;
goto err;
@@ -632,7 +632,7 @@ int parasite_get_proc_fd_seized(struct parasite_ctl *ctl)
{
int ret = -1, fd;
ret = parasite_execute(PARASITE_CMD_GET_PROC_FD, ctl);
ret = parasite_execute_trap(PARASITE_CMD_GET_PROC_FD, ctl);
if (ret) {
pr_err("Parasite failed to get proc fd\n");
return ret;
@@ -669,7 +669,7 @@ int parasite_init_threads_seized(struct parasite_ctl *ctl, struct pstree_item *i
break;
}
ret = parasite_execute_by_id(PARASITE_CMD_INIT_THREAD, ctl, i);
ret = parasite_execute_trap_by_id(PARASITE_CMD_INIT_THREAD, ctl, i);
if (ret) {
pr_err("Can't init thread in parasite %d\n",
item->threads[i].real);
@@ -698,7 +698,7 @@ int parasite_fini_threads_seized(struct parasite_ctl *ctl)
pid_t tid = ctl->threads[i].tid;
args->id = i;
ret = parasite_execute_by_id(PARASITE_CMD_FINI_THREAD, ctl, i);
ret = parasite_execute_trap_by_id(PARASITE_CMD_FINI_THREAD, ctl, i);
/*
* Note the thread's fini() can be called even when not
* all threads were init()'ed, say we're rolling back from
@@ -727,7 +727,7 @@ static int parasite_fini_seized(struct parasite_ctl *ctl)
args = parasite_args(ctl, struct parasite_init_args);
args->id = 0;
return parasite_execute(PARASITE_CMD_FINI, ctl);
return parasite_execute_trap(PARASITE_CMD_FINI, ctl);
}
int parasite_cure_remote(struct parasite_ctl *ctl)