diff options
| author | Dmitry Safonov <dima@arista.com> | 2020-12-15 04:08:17 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-12-15 21:13:41 +0100 |
| commit | dd3b614f858d88f33e0cf8b7353e2ad937e71da3 (patch) | |
| tree | 38342e1136cdddec10974f81a5a34237525b54f6 /ipc/shm.c | |
| parent | mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio (diff) | |
| download | linux-dd3b614f858d88f33e0cf8b7353e2ad937e71da3.tar.xz linux-dd3b614f858d88f33e0cf8b7353e2ad937e71da3.zip | |
vm_ops: rename .split() callback to .may_split()
Rename the callback to reflect that it's not called *on* or *after* split,
but rather some time before the splitting to check if it's possible.
Link: https://lkml.kernel.org/r/20201013013416.390574-5-dima@arista.com
Signed-off-by: Dmitry Safonov <dima@arista.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Brian Geffon <bgeffon@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/shm.c')
| -rw-r--r-- | ipc/shm.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index e25c7c6106bc..febd88daba8c 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -434,13 +434,13 @@ static vm_fault_t shm_fault(struct vm_fault *vmf) return sfd->vm_ops->fault(vmf); } -static int shm_split(struct vm_area_struct *vma, unsigned long addr) +static int shm_may_split(struct vm_area_struct *vma, unsigned long addr) { struct file *file = vma->vm_file; struct shm_file_data *sfd = shm_file_data(file); - if (sfd->vm_ops->split) - return sfd->vm_ops->split(vma, addr); + if (sfd->vm_ops->may_split) + return sfd->vm_ops->may_split(vma, addr); return 0; } @@ -582,7 +582,7 @@ static const struct vm_operations_struct shm_vm_ops = { .open = shm_open, /* callback for a new vm-area open */ .close = shm_close, /* callback for when the vm-area is released */ .fault = shm_fault, - .split = shm_split, + .may_split = shm_may_split, .pagesize = shm_pagesize, #if defined(CONFIG_NUMA) .set_policy = shm_set_policy, |