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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:54:46 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:54:46 -0700 |
commit | a5ad5742f671de906adbf29fbedf0a04705cebad (patch) | |
tree | 88d1a4c18e2025a5a8335dbbc9dea8bebeba5789 /arch/powerpc/platforms/cell/spufs/file.c | |
parent | 013b2deba9a6b80ca02f4fafd7dedf875e9b4450 (diff) | |
parent | 4fa7252338a56fbc90220e6330f136a379175a7a (diff) | |
download | linux-a5ad5742f671de906adbf29fbedf0a04705cebad.tar.gz linux-a5ad5742f671de906adbf29fbedf0a04705cebad.tar.bz2 linux-a5ad5742f671de906adbf29fbedf0a04705cebad.zip |
Merge branch 'akpm' (patches from Andrew)
Merge even more updates from Andrew Morton:
- a kernel-wide sweep of show_stack()
- pagetable cleanups
- abstract out accesses to mmap_sem - prep for mmap_sem scalability work
- hch's user acess work
Subsystems affected by this patch series: debug, mm/pagemap, mm/maccess,
mm/documentation.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (93 commits)
include/linux/cache.h: expand documentation over __read_mostly
maccess: return -ERANGE when probe_kernel_read() fails
x86: use non-set_fs based maccess routines
maccess: allow architectures to provide kernel probing directly
maccess: move user access routines together
maccess: always use strict semantics for probe_kernel_read
maccess: remove strncpy_from_unsafe
tracing/kprobes: handle mixed kernel/userspace probes better
bpf: rework the compat kernel probe handling
bpf:bpf_seq_printf(): handle potentially unsafe format string better
bpf: handle the compat string in bpf_trace_copy_string better
bpf: factor out a bpf_trace_copy_string helper
maccess: unify the probe kernel arch hooks
maccess: remove probe_read_common and probe_write_common
maccess: rename strnlen_unsafe_user to strnlen_user_nofault
maccess: rename strncpy_from_unsafe_strict to strncpy_from_kernel_nofault
maccess: rename strncpy_from_unsafe_user to strncpy_from_user_nofault
maccess: update the top of file comment
maccess: clarify kerneldoc comments
maccess: remove duplicate kerneldoc comments
...
Diffstat (limited to 'arch/powerpc/platforms/cell/spufs/file.c')
-rw-r--r-- | arch/powerpc/platforms/cell/spufs/file.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c index e44427c24585..62d90a5e23d1 100644 --- a/arch/powerpc/platforms/cell/spufs/file.c +++ b/arch/powerpc/platforms/cell/spufs/file.c @@ -325,7 +325,7 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, return VM_FAULT_SIGBUS; /* - * Because we release the mmap_sem, the context may be destroyed while + * Because we release the mmap_lock, the context may be destroyed while * we're in spu_wait. Grab an extra reference so it isn't destroyed * in the meantime. */ @@ -334,8 +334,8 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, /* * We have to wait for context to be loaded before we have * pages to hand out to the user, but we don't want to wait - * with the mmap_sem held. - * It is possible to drop the mmap_sem here, but then we need + * with the mmap_lock held. + * It is possible to drop the mmap_lock here, but then we need * to return VM_FAULT_NOPAGE because the mappings may have * hanged. */ @@ -343,11 +343,11 @@ static vm_fault_t spufs_ps_fault(struct vm_fault *vmf, goto refault; if (ctx->state == SPU_STATE_SAVED) { - up_read(¤t->mm->mmap_sem); + mmap_read_unlock(current->mm); spu_context_nospu_trace(spufs_ps_fault__sleep, ctx); err = spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE); spu_context_trace(spufs_ps_fault__wake, ctx, ctx->spu); - down_read(¤t->mm->mmap_sem); + mmap_read_lock(current->mm); } else { area = ctx->spu->problem_phys + ps_offs; ret = vmf_insert_pfn(vmf->vma, vmf->address, |