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| author |   Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2010-10-07 15:31:31 +0900 |
|---|---|---|
| committer |   Andi Kleen <ak@linux.intel.com> | 2010-10-08 09:32:15 +0200 |
| commit | b8aeec34175fc8fe8b0d40efea4846dfc1ba663e (patch) | |
| tree | 8111b66ee029cad8950c58bd7d0e5df38a69a321 | |
| parent | Merge branch 'hwpoison-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 (diff) | |
| download | linux-dev-b8aeec34175fc8fe8b0d40efea4846dfc1ba663e.tar.xz linux-dev-b8aeec34175fc8fe8b0d40efea4846dfc1ba663e.zip | |
HWPOISON/signalfd: add support for addr_lsb
Similar change as to signal delivery: copy out the si_addr_lsb field
to user space in signalfd
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
| -rw-r--r-- | fs/signalfd.c | 10 | ||||
| -rw-r--r-- | include/linux/signalfd.h | 3 |
2 files changed, 12 insertions, 1 deletions
diff --git a/fs/signalfd.c b/fs/signalfd.c index 1c5a6add779d..bdd4496ae67f 100644 --- a/fs/signalfd.c +++ b/fs/signalfd.c @@ -99,6 +99,16 @@ static int signalfd_copyinfo(struct signalfd_siginfo __user *uinfo, #ifdef __ARCH_SI_TRAPNO err |= __put_user(kinfo->si_trapno, &uinfo->ssi_trapno); #endif +#ifdef BUS_MCEERR_AO + /* + * Other callers might not initialize the si_lsb field, + * so check explicitly for the right codes here. + */ + if (kinfo->si_code == BUS_MCEERR_AR || + kinfo->si_code == BUS_MCEERR_AO) + err |= __put_user((short) kinfo->si_addr_lsb, + &uinfo->ssi_addr_lsb); +#endif break; case __SI_CHLD: err |= __put_user(kinfo->si_pid, &uinfo->ssi_pid); diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h index b363b916c909..3ff4961da9b5 100644 --- a/include/linux/signalfd.h +++ b/include/linux/signalfd.h @@ -33,6 +33,7 @@ struct signalfd_siginfo { __u64 ssi_utime; __u64 ssi_stime; __u64 ssi_addr; + __u16 ssi_addr_lsb; /* * Pad strcture to 128 bytes. Remember to update the @@ -43,7 +44,7 @@ struct signalfd_siginfo { * comes out of a read(2) and we really don't want to have * a compat on read(2). */ - __u8 __pad[48]; + __u8 __pad[46]; }; |