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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-01 07:47:12 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-07-01 07:47:12 +0300 |
| commit | 05a8256c586ab75bcd6b793737b2022a1a98cb1e (patch) | |
| tree | 2f25fcae0d63a0bfbfa16d887eb518d8d5c226e2 /arch/tile/mm | |
| parent | 0161b6e0d88e04f54ada7112bb2dad1f3ae472af (diff) | |
| parent | 5316a64ce518f850afb0fca322b85b6dff3cb59f (diff) | |
| download | linux-05a8256c586ab75bcd6b793737b2022a1a98cb1e.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile
Pull arch/tile updates from Chris Metcalf:
"These are a grab bag of changes to improve debugging and respond to a
variety of issues raised on LKML over the last couple of months"
* git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
tile: avoid a "label not used" warning in do_page_fault()
tile: vdso: use raw_read_seqcount_begin() in vdso
tile: force CONFIG_TILEGX if ARCH != tilepro
tile: improve stack backtrace
tile: fix "odd fault" warning for stack backtraces
tile: set up initial stack top to honor STACK_TOP_DELTA
tile: support delivering NMIs for multicore backtrace
drivers/tty/hvc/hvc_tile.c: properly return -EAGAIN
tile: add <asm/word-at-a-time.h> and enable support functions
tile: use READ_ONCE() in arch_spin_is_locked()
tile: modify arch_spin_unlock_wait() semantics
Diffstat (limited to 'arch/tile/mm')
| -rw-r--r-- | arch/tile/mm/fault.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index 3f4f58d34a92..13eac59bf16a 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -699,11 +699,10 @@ struct intvec_state do_page_fault_ics(struct pt_regs *regs, int fault_num, * interrupt away appropriately and return immediately. We can't do * page faults for user code while in kernel mode. */ -void do_page_fault(struct pt_regs *regs, int fault_num, - unsigned long address, unsigned long write) +static inline void __do_page_fault(struct pt_regs *regs, int fault_num, + unsigned long address, unsigned long write) { int is_page_fault; - enum ctx_state prev_state = exception_enter(); #ifdef CONFIG_KPROBES /* @@ -713,7 +712,7 @@ void do_page_fault(struct pt_regs *regs, int fault_num, */ if (notify_die(DIE_PAGE_FAULT, "page fault", regs, -1, regs->faultnum, SIGSEGV) == NOTIFY_STOP) - goto done; + return; #endif #ifdef __tilegx__ @@ -835,18 +834,22 @@ void do_page_fault(struct pt_regs *regs, int fault_num, async->is_fault = is_page_fault; async->is_write = write; async->address = address; - goto done; + return; } } #endif handle_page_fault(regs, fault_num, is_page_fault, address, write); +} -done: +void do_page_fault(struct pt_regs *regs, int fault_num, + unsigned long address, unsigned long write) +{ + enum ctx_state prev_state = exception_enter(); + __do_page_fault(regs, fault_num, address, write); exception_exit(prev_state); } - #if CHIP_HAS_TILE_DMA() /* * This routine effectively re-issues asynchronous page faults |