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Subject[PATCH 1/5] kernfs: make kernfs_open_file->mmapped a bitfield
Date
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>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/kernfs/file.c | 2 +-
include/linux/kernfs.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/kernfs/file.c b/fs/kernfs/file.c
index 78219d5..d0b6fb1 100644
--- a/fs/kernfs/file.c
+++ b/fs/kernfs/file.c
@@ -516,7 +516,7 @@ static int kernfs_fop_mmap(struct file *file, struct vm_area_struct *vma)
goto out_put;

rc = 0;
- of->mmapped = 1;
+ of->mmapped = true;
of->vm_ops = vma->vm_ops;
vma->vm_ops = &kernfs_vm_ops;
out_put:
diff --git a/include/linux/kernfs.h b/include/linux/kernfs.h
index 7056238..afd4e5a 100644
--- a/include/linux/kernfs.h
+++ b/include/linux/kernfs.h
@@ -185,7 +185,7 @@ struct kernfs_open_file {
char *prealloc_buf;

size_t atomic_write_len;
- bool mmapped;
+ bool mmapped:1;
const struct vm_operations_struct *vm_ops;
};

--
2.9.3
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