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| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-07-25 01:47:43 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 10:53:40 -0700 |
| commit | 9d5b327bf198d2720666de958dcc2ae219d86952 (patch) | |
| tree | 2eba6fe178581c2291393a061ff42d09da95386b /fs/exec.c | |
| parent | c5f1cc8c1828486a61ab3e575da6e2c62b34d399 (diff) | |
| download | lwn-9d5b327bf198d2720666de958dcc2ae219d86952.tar.gz lwn-9d5b327bf198d2720666de958dcc2ae219d86952.zip | |
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/exec.c')
| -rw-r--r-- | fs/exec.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/fs/exec.c b/fs/exec.c index 15d493fe8aa3..b8ee842d93cd 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; } |