kernel.git/arch/tile/include/asm/compat.h, branch linux-4.14.y

fcntl: don't cap l_start and l_end values for F_GETLK64 in compat syscall

2017-12-17T14:07:59Z

commit 4d2dc2cc766c3b51929658cacbc6e34fc8e242fb upstream. Currently, we're capping the values too low in the F_GETLK64 case. The fields in that structure are 64-bit values, so we shouldn't need to do any sort of fixup there. Make sure we check that assumption at build time in the future however by ensuring that the sizes we're copying will fit. With this, we no longer need COMPAT_LOFF_T_MAX either, so remove it. Fixes: 94073ad77fff2 (fs/locks: don't mess with the address limit in compat_fcntl64) Reported-by: Vitaly Lipatov Signed-off-by: Jeff Layton Reviewed-by: David Howells Signed-off-by: Greg Kroah-Hartman

tile: Use get_signal() signal_setup_done()

2014-08-06T11:03:20Z

Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger Acked-by: Chris Metcalf

tile: remove compat_sys_lookup_dcookie declaration to fix compile error

2014-02-01T18:55:15Z

With commit d8d14bd09cdd ("fs/compat: fix lookup_dcookie() parameter handling") I changed the type of the len parameter of the lookup_dcookie() syscall. However I missed that there was still a stale declaration in arch/tile/.. which now causes a compile error on tile: In file included from fs/dcookies.c:28:0: include/linux/compat.h:425:17: error: conflicting types for 'compat_sys_lookup_dcookie' fs/dcookies.c:207:1: error: conflicting types for 'compat_sys_lookup_dcookie' Simply remove the declaration in the tile architecture, which is only a leftover from before the different compat lookup_dcookie() versions have been merged. The correct declaration is now in include/linux/compat.h The build error was reported by Fenguang's build bot. Signed-off-by: Heiko Carstens Acked-by: Chris Metcalf Signed-off-by: Linus Torvalds

tile: work around bug in the generic sys_llseek

2013-03-04T16:19:09Z

sys_llseek should specify the high and low 32-bit seek values as "unsigned int" but instead it specifies "unsigned long". Since compat syscall arguments are always sign-extended on tile, this means that a seek value of 0xffffffff will be incorrectly interpreted as a value of -1ULL. To avoid the risk of breaking binary compatibility on architectures that already use sys_llseek this way, we follow the same path as MIPS and provide a wrapper override. Signed-off-by: Chris Metcalf Cc: stable@kernel.org [v3.6 onwards]

tile: switch to generic compat rt_sigaction()

2013-02-03T23:16:22Z

Signed-off-by: Al Viro

tile: switch to generic compat rt_sigqueueinfo()

2013-02-03T23:16:22Z

Signed-off-by: Al Viro

tile: switch to generic sigaltstack

2013-02-03T23:16:21Z

Signed-off-by: Al Viro

compat: generic compat_sys_sched_rr_get_interval() implementation

2012-12-18T01:15:18Z

This function is used by sparc, powerpc tile and arm64 for compat support. The patch adds a generic implementation with a wrapper for PowerPC to do the u32->int sign extension. The reason for a single patch covering powerpc, tile, sparc and arm64 is to keep it bisectable, otherwise kernel building may fail with mismatched function declarations. Signed-off-by: Catalin Marinas Acked-by: Chris Metcalf [for tile] Acked-by: David S. Miller Acked-by: Arnd Bergmann Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Alexander Viro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

arch/tile: eliminate pt_regs trampolines for syscalls

2012-10-23T20:23:58Z

Using the new current_pt_regs() model, we can remove some trampolines from assembly code and call directly to the C syscall implementations. rt_sigreturn() and clone() still need some assembly wrapping, but no longer are passed a pt_regs pointer. sigaltstack() and the tilepro-specific cmpxchg_badaddr() syscalls are now just straight C. Signed-off-by: Chris Metcalf

Drop struct pt_regs * argument in compat_sys_execve()

2012-10-20T17:13:11Z

Signed-off-by: Al Viro