xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

kernfs: make kernfs_open_file->mmapped a bitfield

Browse Source 
More kernfs_open_file->mutex synchronized flags are planned to be
added.  Convert ->mmapped to a bitfield in preparation.

While at it, make kernfs_fop_mmap() use "true" instead of "1" on
->mmapped.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Acked-by: Zefan Li <lizefan@huawei.com>
This commit is contained in:
Tejun Heo
2016-12-27 14:49:02 -05:00
parent 7ce7d89f48
commit a1d82aff5d
2 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
fs/kernfs/file.c
View File

@@ -516,7 +516,7 @@ static int kernfs_fop_mmap(struct file *file, struct vm_area_struct *vma)
goto out_put; goto out_put;
rc = 0; rc = 0;
of->mmapped = 1; of->mmapped = true;
of->vm_ops = vma->vm_ops; of->vm_ops = vma->vm_ops;
vma->vm_ops = &kernfs_vm_ops; vma->vm_ops = &kernfs_vm_ops;
out_put: out_put:

2
include/linux/kernfs.h
View File

@@ -185,7 +185,7 @@ struct kernfs_open_file {
char *prealloc_buf; char *prealloc_buf;
size_t atomic_write_len; size_t atomic_write_len;
bool mmapped; bool mmapped:1;
const struct vm_operations_struct *vm_ops; const struct vm_operations_struct *vm_ops;
}; };