Messages in this thread Patch in this message | | | Date | Thu, 10 Apr 2008 11:57:44 -0700 (PDT) | From | Davide Libenzi <> | Subject | [patch] signalfd fix for incorrect SI_QUEUE user data reporting |
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Michael Kerrisk found out that signalfd was not reporting back user data pushed using sigqueue:
http://groups.google.com/group/linux.kernel/msg/9397cab8551e3123
The following patch makes signalfd to report back the ssi_ptr and ssi_int members of the signalfd_siginfo structure.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
- Davide
--- fs/signalfd.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
Index: linux-2.6.mod/fs/signalfd.c =================================================================== --- linux-2.6.mod.orig/fs/signalfd.c 2008-04-09 11:53:37.000000000 -0700 +++ linux-2.6.mod/fs/signalfd.c 2008-04-09 12:05:46.000000000 -0700 @@ -111,9 +111,14 @@ err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid); err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr); break; - default: /* this is just in case for now ... */ + default: + /* + * This case catches also the signals queued by sigqueue(). + */ err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid); err |= __put_user(kinfo->si_uid, &uinfo->ssi_uid); + err |= __put_user((long) kinfo->si_ptr, &uinfo->ssi_ptr); + err |= __put_user(kinfo->si_int, &uinfo->ssi_int); break; }
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