diff options
| author | Michel Lespinasse <walken@google.com> | 2020-06-09 07:33:40 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 19:39:14 +0300 |
| commit | 14c3656b7284a8649496584869e8c6642ec1abbb (patch) | |
| tree | 27854c76ef733aba0de346c422b95d68d215f818 /include/linux/mmap_lock.h | |
| parent | 0cc55a0213a02b760ade1d4755fdccfbf7d3157e (diff) | |
| download | linux-14c3656b7284a8649496584869e8c6642ec1abbb.tar.xz | |
mmap locking API: add MMAP_LOCK_INITIALIZER
Define a new initializer for the mmap locking api. Initially this just
evaluates to __RWSEM_INITIALIZER as the API is defined as wrappers around
rwsem.
Signed-off-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
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: 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/20200520052908.204642-9-walken@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mmap_lock.h')
| -rw-r--r-- | include/linux/mmap_lock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mmap_lock.h b/include/linux/mmap_lock.h index d1826ce42f00..acac1bf5ecd2 100644 --- a/include/linux/mmap_lock.h +++ b/include/linux/mmap_lock.h @@ -1,6 +1,9 @@ #ifndef _LINUX_MMAP_LOCK_H #define _LINUX_MMAP_LOCK_H +#define MMAP_LOCK_INITIALIZER(name) \ + .mmap_sem = __RWSEM_INITIALIZER((name).mmap_sem), + static inline void mmap_init_lock(struct mm_struct *mm) { init_rwsem(&mm->mmap_sem); |