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OpenCloudOS-Kernel
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coredump: factor out the setting of PF_DUMPCORE 

Cleanup.  Every linux_binfmt->core_dump() sets PF_DUMPCORE, move this into
zap_threads() called by do_coredump().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Mandeep Singh Baines <msb@chromium.org>
Cc: Neil Horman <nhorman@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2013-04-30 15:28:16 -07:00 committed by Linus Torvalds
parent 528f827ee0
commit 079148b919
5 changed files with 2 additions and 6 deletions
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1
arch/x86/ia32/ia32_aout.c
View File

@ -162,7 +162,6 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(current->comm));
dump.u_ar0 = offsetof(struct user32, regs);
dump.signal = signr;

1
fs/binfmt_aout.c
View File

@ -62,7 +62,6 @@ static int aout_core_dump(struct coredump_params *cprm)
fs = get_fs();
set_fs(KERNEL_DS);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
strncpy(dump.u_comm, current->comm, sizeof(dump.u_comm));
dump.u_ar0 = offsetof(struct user, regs);
dump.signal = cprm->siginfo->si_signo;

3
fs/binfmt_elf.c
View File

@ -2092,8 +2092,7 @@ static int elf_core_dump(struct coredump_params *cprm)
goto cleanup;
has_dumped = 1;
current->flags |= PF_DUMPCORE;
fs = get_fs();
set_fs(KERNEL_DS);

2
fs/binfmt_elf_fdpic.c
View File

@ -1687,8 +1687,6 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
fill_elf_fdpic_header(elf, e_phnum);
has_dumped = 1;
current->flags |= PF_DUMPCORE;
/*
* Set up the notes in similar form to SVR4 core dumps made
* with info from their /proc.

1
fs/coredump.c
View File

@ -299,6 +299,7 @@ static int zap_threads(struct task_struct *tsk, struct mm_struct *mm,
if (unlikely(nr < 0))
return nr;
tsk->flags = PF_DUMPCORE;
if (atomic_read(&mm->mm_users) == nr + 1)
goto done;
/*