J. Bruce Fields ef12e72a01 locks: fix posix lock range overflow handling ... In the 32-bit case fcntl assigns the 64-bit f_pos and i_size to a 32-bit off_t. The existing range checks also seem to depend on signed arithmetic wrapping when it overflows. In practice maybe that works, but we can be more careful. That also allows us to make a more reliable distinction between -EINVAL and -EOVERFLOW. Note that in the 32-bit case SEEK_CUR or SEEK_END might allow the caller to set a lock with starting point no longer representable as a 32-bit value. We could return -EOVERFLOW in such cases, but the locks code is capable of handling such ranges, so we choose to be lenient here. The only problem is that subsequent GETLK calls on such a lock will fail with EOVERFLOW. While we're here, do some cleanup including consolidating code for the flock and flock64 cases. Signed-off-by: J. Bruce Fields <bfields@fieldses.org> Signed-off-by: Jeff Layton <jlayton@redhat.com>		2014-03-31 08:24:42 -04:00
..
auxvec.h
bitsperlong.h
errno-base.h
errno.h	errno.h: remove "NFS" from descriptions in comments	2013-11-13 12:09:12 +09:00
fcntl.h	locks: fix posix lock range overflow handling	2014-03-31 08:24:42 -04:00
int-l64.h
int-ll64.h
ioctl.h
ioctls.h
ipcbuf.h	uapi, asm-generic: Use __kernel_ulong_t in uapi struct ipc64_perm	2014-01-20 14:44:35 -08:00
Kbuild
Kbuild.asm
kvm_para.h
mman-common.h
mman.h
msgbuf.h	uapi: Use __kernel_ulong_t in struct msqid64_ds	2014-01-20 14:45:01 -08:00
param.h
poll.h	net: rename low latency sockets functions to busy poll	2013-07-08 19:25:45 -07:00
posix_types.h
resource.h
sembuf.h
setup.h
shmbuf.h	uapi: Use __kernel_ulong_t in shmid64_ds/shminfo64/shm_info	2014-01-20 14:45:25 -08:00
shmparam.h
siginfo.h
signal-defs.h
signal.h
socket.h	net: introduce SO_BPF_EXTENSIONS	2014-01-18 19:08:58 -08:00
sockios.h
stat.h
statfs.h	x86, x32: Use __kernel_long_t for __statfs_word	2013-12-20 16:06:21 -08:00
swab.h
termbits.h
termios.h
types.h	asm/types.h: Remove include/asm-generic/int-l64.h	2014-01-23 16:36:53 -08:00
ucontext.h
unistd.h	sched: Rename sched.c as sched/core.c in comments and Documentation	2013-06-19 12:58:42 +02:00