mirror_ubuntu-kernels/arch/csky/mm
Ira Weiny 01c4b788e0 arch/kmap: remove BUG_ON()
Patch series "Remove duplicated kmap code", v3.

The kmap infrastructure has been copied almost verbatim to every
architecture.  This series consolidates obvious duplicated code by
defining core functions which call into the architectures only when
needed.

Some of the k[un]map_atomic() implementations have some similarities but
the similarities were not sufficient to warrant further changes.

In addition we remove a duplicate implementation of kmap() in DRM.

This patch (of 15):

Replace the use of BUG_ON(in_interrupt()) in the kmap() and kunmap() in
favor of might_sleep().

Besides the benefits of might_sleep(), this normalizes the implementations
such that they can be made generic in subsequent patches.

Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Link: http://lkml.kernel.org/r/20200507150004.1423069-1-ira.weiny@intel.com
Link: http://lkml.kernel.org/r/20200507150004.1423069-2-ira.weiny@intel.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-06-04 19:06:22 -07:00
..
asid.c csky: Add new asid lib code from arm 2019-07-19 14:21:36 +08:00
cachev1.c csky: Support icache flush without specific instructions 2020-02-21 15:43:24 +08:00
cachev2.c csky/ftrace: Fixup ftrace_modify_code deadlock without CPU_HAS_ICACHE_INS 2020-03-31 22:15:42 +08:00
context.c csky: Use generic asid algorithm to implement switch_mm 2019-07-19 14:21:36 +08:00
dma-mapping.c dma-mapping: drop the dev argument to arch_sync_dma_for_* 2019-11-20 20:31:38 +01:00
fault.c mm/vma: append unlikely() while testing VMA access permissions 2020-04-07 10:43:38 -07:00
highmem.c arch/kmap: remove BUG_ON() 2020-06-04 19:06:22 -07:00
init.c csky: Add setup_initrd check code 2020-02-21 15:43:25 +08:00
ioremap.c csky: use generic ioremap 2019-11-12 11:37:52 +01:00
Makefile csky: Fixup ftrace modify panic 2020-02-21 15:43:24 +08:00
syscache.c csky: Add flush_icache_mm to defer flush icache all 2020-02-21 15:43:24 +08:00
tcm.c csky: Tightly-Coupled Memory or Sram support 2020-02-21 15:43:24 +08:00
tlb.c csky: Improve tlb operation with help of asid 2019-07-19 14:21:36 +08:00