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authorDavid Howells <dhowells@redhat.com>2019-03-25 19:38:23 +0300
committerAl Viro <viro@zeniv.linux.org.uk>2019-05-26 01:00:04 +0300
commit52db59df17c0cd3ee4071a75a8509287a662abac (patch)
tree5f99aa193c0a469b32913fb40191e13da560bfa2
parent31d6d5ce53400d6dc58e29ddd8dc184b3ba89d66 (diff)
downloadlinux-52db59df17c0cd3ee4071a75a8509287a662abac.tar.xz
vfs: Convert aio to use the new mount API
Convert the aio filesystem to the new internal mount API as the old one will be obsoleted and removed. This allows greater flexibility in communication of mount parameters between userspace, the VFS and the filesystem. See Documentation/filesystems/mount_api.txt for more information. Signed-off-by: David Howells <dhowells@redhat.com> cc: Benjamin LaHaise <bcrl@kvack.org> cc: linux-aio@kvack.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
-rw-r--r--fs/aio.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 09bc35fa6810..17f4441fd583 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/pseudo_fs.h>
#include <asm/kmap_types.h>
#include <linux/uaccess.h>
@@ -249,14 +250,12 @@ 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, NULL, NULL, AIO_RING_MAGIC);
-
- if (!IS_ERR(root))
- root->d_sb->s_iflags |= SB_I_NOEXEC;
- return root;
+ if (!init_pseudo(fc, AIO_RING_MAGIC))
+ return -ENOMEM;
+ fc->s_iflags |= SB_I_NOEXEC;
+ return 0;
}
/* aio_setup
@@ -267,7 +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);