[PATCH 03/38] vfs: Convert aio to fs_context

From: David Howells
Date: Thu Mar 14 2019 - 12:09:30 EST


Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Benjamin LaHaise <bcrl@xxxxxxxxx>
cc: linux-aio@xxxxxxxxx
---

fs/aio.c | 15 ++++++---------
1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 38b741aef0bf..42bf0c83da66 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -42,6 +42,7 @@
#include <linux/ramfs.h>
#include <linux/percpu-refcount.h>
#include <linux/mount.h>
+#include <linux/fs_context.h>

#include <asm/kmap_types.h>
#include <linux/uaccess.h>
@@ -250,15 +251,11 @@ static struct file *aio_private_file(struct kioctx *ctx, loff_t nr_pages)
return file;
}

-static struct dentry *aio_mount(struct file_system_type *fs_type,
- int flags, const char *dev_name, void *data)
+static int aio_init_fs_context(struct fs_context *fc)
{
- struct dentry *root = mount_pseudo(fs_type, "aio:", NULL, NULL,
- AIO_RING_MAGIC);
-
- if (!IS_ERR(root))
- root->d_sb->s_iflags |= SB_I_NOEXEC;
- return root;
+ fc->s_iflags |= SB_I_NOEXEC;
+ return vfs_init_pseudo_fs_context(fc, "aio:",
+ NULL, NULL, NULL, AIO_RING_MAGIC);
}

/* aio_setup
@@ -269,7 +266,7 @@ static int __init aio_setup(void)
{
static struct file_system_type aio_fs = {
.name = "aio",
- .mount = aio_mount,
+ .init_fs_context = aio_init_fs_context,
.kill_sb = kill_anon_super,
};
aio_mnt = kern_mount(&aio_fs);