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| author | Michel Lespinasse <walken@google.com> | 2020-06-08 21:33:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:39:14 -0700 |
| commit | c1e8d7c6a7a682e1405e3e242d32fc377fd196ff (patch) | |
| tree | ef02402b77990834fbb5bdb1f146fc0393cc8987 /drivers/gpu/drm/i915 | |
| parent | 3e4e28c5a8f01ee4174d639e36ed155ade489a6f (diff) | |
| download | linux-c1e8d7c6a7a682e1405e3e242d32fc377fd196ff.tar.bz2 | |
mmap locking API: convert mmap_sem comments
Convert comments that reference mmap_sem to reference mmap_lock instead.
[akpm@linux-foundation.org: fix up linux-next leftovers]
[akpm@linux-foundation.org: s/lockaphore/lock/, per Vlastimil]
[akpm@linux-foundation.org: more linux-next fixups, per Michel]
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: David Rientjes <rientjes@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Laurent Dufour <ldufour@linux.ibm.com>
Cc: Liam Howlett <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ying Han <yinghan@google.com>
Link: http://lkml.kernel.org/r/20200520052908.204642-13-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_perf.c | 2 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c index 81f7656f41c3..c31a6744daee 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c @@ -203,7 +203,7 @@ i915_mmu_notifier_find(struct i915_mm_struct *mm) mmap_write_lock(mm->mm); mutex_lock(&mm->i915->mm_lock); if (mm->mn == NULL && !err) { - /* Protected by mmap_sem (write-lock) */ + /* Protected by mmap_lock (write-lock) */ err = __mmu_notifier_register(&mn->mn, mm->mm); if (!err) { /* Protected by mm_lock */ @@ -522,8 +522,8 @@ __i915_gem_userptr_get_pages_schedule(struct drm_i915_gem_object *obj) /* Spawn a worker so that we can acquire the * user pages without holding our mutex. Access - * to the user pages requires mmap_sem, and we have - * a strict lock ordering of mmap_sem, struct_mutex - + * to the user pages requires mmap_lock, and we have + * a strict lock ordering of mmap_lock, struct_mutex - * we already hold struct_mutex here and so cannot * call gup without encountering a lock inversion. * diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 75c60c2afb7e..665bb076e84d 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -3676,7 +3676,7 @@ static int read_properties_unlocked(struct i915_perf *perf, * buffered data written by the GPU besides periodic OA metrics. * * Note we copy the properties from userspace outside of the i915 perf - * mutex to avoid an awkward lockdep with mmap_sem. + * mutex to avoid an awkward lockdep with mmap_lock. * * Most of the implementation details are handled by * i915_perf_open_ioctl_locked() after taking the &perf->lock |