diff options
author | Michel Lespinasse <walken@google.com> | 2020-06-08 21:33:25 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-09 09:39:14 -0700 |
commit | d8ed45c5dcd455fc5848d47f86883a1b872ac0d0 (patch) | |
tree | f9270b32da5f3f7be73b086c99d3dfc29a13161a /drivers/misc/cxl | |
parent | 0adf65f53aae86aa86d8dccada02890545de8938 (diff) | |
download | linux-d8ed45c5dcd455fc5848d47f86883a1b872ac0d0.tar.gz |
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
This change converts the existing mmap_sem rwsem calls to use the new mmap locking API instead. The change is generated using coccinelle with the following rule: // spatch --sp-file mmap_lock_api.cocci --in-place --include-headers --dir . @@ expression mm; @@ ( -init_rwsem +mmap_init_lock | -down_write +mmap_write_lock | -down_write_killable +mmap_write_lock_killable | -down_write_trylock +mmap_write_trylock | -up_write +mmap_write_unlock | -downgrade_write +mmap_write_downgrade | -down_read +mmap_read_lock | -down_read_killable +mmap_read_lock_killable | -down_read_trylock +mmap_read_trylock | -up_read +mmap_read_unlock ) -(&mm->mmap_sem) +(mm) Signed-off-by: Michel Lespinasse <walken@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com> Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> 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/20200520052908.204642-5-walken@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/cxl')
-rw-r--r-- | drivers/misc/cxl/cxllib.c | 4 | ||||
-rw-r--r-- | drivers/misc/cxl/fault.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/drivers/misc/cxl/cxllib.c b/drivers/misc/cxl/cxllib.c index 258c43a95ac3..a2c0fbb5eb28 100644 --- a/drivers/misc/cxl/cxllib.c +++ b/drivers/misc/cxl/cxllib.c @@ -207,7 +207,7 @@ static int get_vma_info(struct mm_struct *mm, u64 addr, struct vm_area_struct *vma = NULL; int rc = 0; - down_read(&mm->mmap_sem); + mmap_read_lock(mm); vma = find_vma(mm, addr); if (!vma) { @@ -218,7 +218,7 @@ static int get_vma_info(struct mm_struct *mm, u64 addr, *vma_start = vma->vm_start; *vma_end = vma->vm_end; out: - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); return rc; } diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c index 2297e6fc1544..01153b74334a 100644 --- a/drivers/misc/cxl/fault.c +++ b/drivers/misc/cxl/fault.c @@ -321,7 +321,7 @@ static void cxl_prefault_vma(struct cxl_context *ctx) return; } - down_read(&mm->mmap_sem); + mmap_read_lock(mm); for (vma = mm->mmap; vma; vma = vma->vm_next) { for (ea = vma->vm_start; ea < vma->vm_end; ea = next_segment(ea, slb.vsid)) { @@ -336,7 +336,7 @@ static void cxl_prefault_vma(struct cxl_context *ctx) last_esid = slb.esid; } } - up_read(&mm->mmap_sem); + mmap_read_unlock(mm); mmput(mm); } |