[CRIU] [PATCH 04/22] parasite-syscall: Add "trap" postfix to parasite execute functions
Andrey Vagin
avagin at openvz.org
Wed May 8 09:28:31 EDT 2013
From: Cyrill Gorcunov <gorcunov at openvz.org>
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 at openvz.org>
Signed-off-by: Andrey Vagin <avagin at openvz.org>
---
arch/arm/crtools.c | 2 +-
arch/x86/crtools.c | 2 +-
include/parasite-syscall.h | 4 ++--
mem.c | 4 ++--
parasite-syscall.c | 36 ++++++++++++++++++------------------
5 files changed, 24 insertions(+), 24 deletions(-)
diff --git a/arch/arm/crtools.c b/arch/arm/crtools.c
index e8129e4..9d6bbaa 100644
--- a/arch/arm/crtools.c
+++ b/arch/arm/crtools.c
@@ -74,7 +74,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
regs.ARM_r5 = arg6;
parasite_setup_regs(ctl->syscall_ip, ®s);
- err = __parasite_execute(ctl, ctl->pid.real, ®s);
+ err = __parasite_execute_trap(ctl, ctl->pid.real, ®s);
if (err)
return err;
diff --git a/arch/x86/crtools.c b/arch/x86/crtools.c
index eba6ad3..284f2c0 100644
--- a/arch/x86/crtools.c
+++ b/arch/x86/crtools.c
@@ -98,7 +98,7 @@ int syscall_seized(struct parasite_ctl *ctl, int nr, unsigned long *ret,
regs.r9 = arg6;
parasite_setup_regs(ctl->syscall_ip, ®s);
- err = __parasite_execute(ctl, ctl->pid.real, ®s);
+ err = __parasite_execute_trap(ctl, ctl->pid.real, ®s);
if (err)
return err;
diff --git a/include/parasite-syscall.h b/include/parasite-syscall.h
index 27835f5..56c37ab 100644
--- a/include/parasite-syscall.h
+++ b/include/parasite-syscall.h
@@ -32,7 +32,7 @@ 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;
@@ -79,7 +79,7 @@ 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, user_regs_struct_t *regs);
extern bool arch_can_dump_task(pid_t pid);
+extern int __parasite_execute_trap(struct parasite_ctl *ctl, pid_t pid, user_regs_struct_t *regs);
#endif /* __CR_PARASITE_SYSCALL_H__ */
diff --git a/mem.c b/mem.c
index b54723d..4e21923 100644
--- a/mem.c
+++ b/mem.c
@@ -281,7 +281,7 @@ static int parasite_mprotect_seized(struct parasite_ctl *ctl, struct vm_area_lis
p_vma++;
}
- return parasite_execute(PARASITE_CMD_MPROTECT_VMAS, ctl);
+ return parasite_execute_trap(PARASITE_CMD_MPROTECT_VMAS, ctl);
}
static int __parasite_dump_pages_seized(struct parasite_ctl *ctl,
@@ -351,7 +351,7 @@ 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, 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;
diff --git a/parasite-syscall.c b/parasite-syscall.c
index 8457c62..205e41e 100644
--- a/parasite-syscall.c
+++ b/parasite-syscall.c
@@ -61,7 +61,7 @@ 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, user_regs_struct_t *regs)
+int __parasite_execute_trap(struct parasite_ctl *ctl, pid_t pid, user_regs_struct_t *regs)
{
siginfo_t siginfo;
int status;
@@ -195,7 +195,7 @@ void *parasite_args_s(struct parasite_ctl *ctl, int args_size)
ctl->addr_args; \
})
-static int parasite_execute_by_pid(unsigned int cmd, struct parasite_ctl *ctl, pid_t pid)
+static int parasite_execute_trap_by_pid(unsigned int cmd, struct parasite_ctl *ctl, pid_t pid)
{
int ret;
user_regs_struct_t regs_orig, regs;
@@ -214,7 +214,7 @@ static int parasite_execute_by_pid(unsigned int cmd, struct parasite_ctl *ctl, p
parasite_setup_regs(ctl->parasite_ip, ®s);
- ret = __parasite_execute(ctl, pid, ®s);
+ ret = __parasite_execute_trap(ctl, pid, ®s);
if (ret == 0)
ret = (int)REG_RES(regs);
@@ -230,9 +230,9 @@ static int parasite_execute_by_pid(unsigned int cmd, struct parasite_ctl *ctl, p
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_pid(cmd, ctl, ctl->pid.real);
+ return parasite_execute_trap_by_pid(cmd, ctl, ctl->pid.real);
}
static int munmap_seized(struct parasite_ctl *ctl, void *addr, size_t length)
@@ -278,7 +278,7 @@ 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;
@@ -337,7 +337,7 @@ 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;
}
@@ -362,7 +362,7 @@ int parasite_dump_thread_seized(struct parasite_ctl *ctl, struct pid *tid,
args = parasite_args(ctl, struct parasite_dump_thread);
- ret = parasite_execute_by_pid(PARASITE_CMD_DUMP_THREAD, ctl, tid->real);
+ ret = parasite_execute_trap_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 = encode_pointer(args->tid_addr);
@@ -380,7 +380,7 @@ 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;
@@ -423,7 +423,7 @@ 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;
@@ -443,7 +443,7 @@ 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;
@@ -457,7 +457,7 @@ 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;
@@ -468,7 +468,7 @@ 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;
@@ -501,7 +501,7 @@ 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;
@@ -521,7 +521,7 @@ 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;
@@ -544,7 +544,7 @@ int parasite_init_threads_seized(struct parasite_ctl *ctl, struct pstree_item *i
if (item->pid.real == item->threads[i].real)
continue;
- ret = parasite_execute_by_pid(PARASITE_CMD_INIT_THREAD, ctl,
+ ret = parasite_execute_trap_by_pid(PARASITE_CMD_INIT_THREAD, ctl,
item->threads[i].real);
if (ret) {
pr_err("Can't init thread in parasite %d\n",
@@ -564,7 +564,7 @@ int parasite_fini_threads_seized(struct parasite_ctl *ctl, struct pstree_item *i
if (item->pid.real == item->threads[i].real)
continue;
- ret = parasite_execute_by_pid(PARASITE_CMD_FINI_THREAD, ctl,
+ ret = parasite_execute_trap_by_pid(PARASITE_CMD_FINI_THREAD, ctl,
item->threads[i].real);
/*
* Note the thread's fini() can be called even when not
@@ -597,7 +597,7 @@ int parasite_cure_seized(struct parasite_ctl *ctl, struct pstree_item *item)
if (ctl->parasite_ip) {
ctl->signals_blocked = 0;
parasite_fini_threads_seized(ctl, item);
- parasite_execute(PARASITE_CMD_FINI, ctl);
+ parasite_execute_trap(PARASITE_CMD_FINI, ctl);
}
if (ctl->remote_map) {
--
1.8.2
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