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authorOleg Nesterov <oleg@tv-sign.ru>2008-10-18 20:28:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-20 08:52:39 -0700
commit6409324b385f3f63a03645b4422e3be67348d922 (patch)
tree97e44f11995236086c7ee712640b2913c94b7000
parentb747c8c102cc0677a7a8056a093f58d7c9b500e7 (diff)
coredump: format_corename: don't append .%pid if multi-threaded
If the coredumping is multi-threaded, format_corename() appends .%pid to the corename. This was needed before the proper multi-thread core dump support, now all the threads in the mm go into a single unified core file. Remove this special case, it is not even documented and we have "%p" and core_uses_pid. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Michael Kerrisk <mtk.manpages@googlemail.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Roland McGrath <roland@redhat.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: La Monte Yarroll <piggy@laurelnetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--fs/exec.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/exec.c b/fs/exec.c
index a41e7902ed0..4e834f16d9d 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1386,7 +1386,7 @@ EXPORT_SYMBOL(set_binfmt);
* name into corename, which must have space for at least
* CORENAME_MAX_SIZE bytes plus one byte for the zero terminator.
*/
-static int format_corename(char *corename, int nr_threads, long signr)
+static int format_corename(char *corename, long signr)
{
const char *pat_ptr = core_pattern;
int ispipe = (*pat_ptr == '|');
@@ -1493,8 +1493,7 @@ static int format_corename(char *corename, int nr_threads, long signr)
* If core_pattern does not include a %p (as is the default)
* and core_uses_pid is set, then .%pid will be appended to
* the filename. Do not do this for piped commands. */
- if (!ispipe && !pid_in_pattern
- && (core_uses_pid || nr_threads)) {
+ if (!ispipe && !pid_in_pattern && core_uses_pid) {
rc = snprintf(out_ptr, out_end - out_ptr,
".%d", task_tgid_vnr(current));
if (rc > out_end - out_ptr)
@@ -1757,7 +1756,7 @@ int do_coredump(long signr, int exit_code, struct pt_regs * regs)
* uses lock_kernel()
*/
lock_kernel();
- ispipe = format_corename(corename, retval, signr);
+ ispipe = format_corename(corename, signr);
unlock_kernel();
/*
* Don't bother to check the RLIMIT_CORE value if core_pattern points