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| author | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-02 14:50:06 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2011-05-02 18:53:35 -0400 |
| commit | 313ce674d3cbc2d48ed34a9462427920ac54f4ad (patch) | |
| tree | 7478150a1268c79851f1a366158c59606330e700 /arch/tile/mm | |
| parent | 93013a0f533fb3dd6875ca670d8e0bb4166a796e (diff) | |
| download | lwn-313ce674d3cbc2d48ed34a9462427920ac54f4ad.tar.gz lwn-313ce674d3cbc2d48ed34a9462427920ac54f4ad.zip | |
arch/tile: support TIF_NOTIFY_RESUME
This support is required for CONFIG_KEYS, NFSv4 kernel DNS, etc.
The change is slightly more complex than the minimal thing, since
I took advantage of having to go into the assembly code to just
move a bunch of stuff into C code: specifically, the schedule(),
do_async_page_fault(), do_signal(), and single_step_once() support,
in addition to the TIF_NOTIFY_RESUME support.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/mm')
| -rw-r--r-- | arch/tile/mm/fault.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c index 51f8663bf074..24ca54a0703b 100644 --- a/arch/tile/mm/fault.c +++ b/arch/tile/mm/fault.c @@ -732,6 +732,7 @@ void do_page_fault(struct pt_regs *regs, int fault_num, panic("Bad fault number %d in do_page_fault", fault_num); } +#if CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC() if (EX1_PL(regs->ex1) != USER_PL) { struct async_tlb *async; switch (fault_num) { @@ -775,6 +776,7 @@ void do_page_fault(struct pt_regs *regs, int fault_num, return; } } +#endif handle_page_fault(regs, fault_num, is_page_fault, address, write); } @@ -801,8 +803,6 @@ static void handle_async_page_fault(struct pt_regs *regs, async->address, async->is_write); } } -#endif /* CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC() */ - /* * This routine effectively re-issues asynchronous page faults @@ -824,6 +824,8 @@ void do_async_page_fault(struct pt_regs *regs) handle_async_page_fault(regs, ¤t->thread.sn_async_tlb); #endif } +#endif /* CHIP_HAS_TILE_DMA() || CHIP_HAS_SN_PROC() */ + void vmalloc_sync_all(void) { |