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authorOleg Nesterov <oleg@tv-sign.ru>2008-07-25 01:47:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 10:53:40 -0700
commit9d5b327bf198d2720666de958dcc2ae219d86952 (patch)
tree2eba6fe178581c2291393a061ff42d09da95386b /fs
parentc5f1cc8c1828486a61ab3e575da6e2c62b34d399 (diff)
downloadlinux-2.6.34-ux500-9d5b327bf198d2720666de958dcc2ae219d86952.tar.gz
coredump: make mm->core_state visible to ->core_dump()
Move the "struct core_state core_state" from coredump_wait() to do_coredump(), this makes mm->core_state visible to binfmt->core_dump(). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/exec.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/exec.c b/fs/exec.c
index 15d493fe8aa..b8ee842d93c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1595,17 +1595,16 @@ done:
return nr;
}
-static int coredump_wait(int exit_code)
+static int coredump_wait(int exit_code, struct core_state *core_state)
{
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
- struct core_state core_state;
struct completion *vfork_done;
int core_waiters;
init_completion(&mm->core_done);
- init_completion(&core_state.startup);
- core_waiters = zap_threads(tsk, mm, &core_state, exit_code);
+ init_completion(&core_state->startup);
+ core_waiters = zap_threads(tsk, mm, core_state, exit_code);
up_write(&mm->mmap_sem);
if (unlikely(core_waiters < 0))
@@ -1622,8 +1621,7 @@ static int coredump_wait(int exit_code)
}
if (core_waiters)
- wait_for_completion(&core_state.startup);
- mm->core_state = NULL;
+ wait_for_completion(&core_state->startup);
fail:
return core_waiters;
}
@@ -1679,6 +1677,7 @@ int get_dumpable(struct mm_struct *mm)
int do_coredump(long signr, int exit_code, struct pt_regs * regs)
{
+ struct core_state core_state;
char corename[CORENAME_MAX_SIZE + 1];
struct mm_struct *mm = current->mm;
struct linux_binfmt * binfmt;
@@ -1717,7 +1716,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
current->fsuid = 0; /* Dump root private */
}
- retval = coredump_wait(exit_code);
+ retval = coredump_wait(exit_code, &core_state);
if (retval < 0)
goto fail;
@@ -1812,6 +1811,7 @@ fail_unlock:
current->fsuid = fsuid;
complete_all(&mm->core_done);
+ mm->core_state = NULL;
fail:
return retval;
}