vfs: Convert zsmalloc to use the new mount API (8e9231f8) · Commits · 戴 / test

Convert the zsmalloc 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: Minchan Kim <minchan@kernel.org> cc: Nitin Gupta <ngupta@vflare.org> cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> cc: linux-mm@kvack.org Signed-off-by:

Al Viro <viro@zeniv.linux.org.uk>

mm/zsmalloc.c

+4 −4

Original line number	Diff line number	Diff line
		@@ -52,6 +52,7 @@
		#include <linux/zsmalloc.h>
		#include <linux/zpool.h>
		#include <linux/mount.h>
		#include <linux/pseudo_fs.h>
		#include <linux/migrate.h>
		#include <linux/pagemap.h>
		#include <linux/fs.h>
		@@ -1814,15 +1815,14 @@ static void lock_zspage(struct zspage *zspage)
		} while ((page = get_next_page(page)) != NULL);
		}

		static struct dentry zs_mount(struct file_system_type fs_type,
		int flags, const char dev_name, void data)
		static int zs_init_fs_context(struct fs_context *fc)
		{
		return mount_pseudo(fs_type, NULL, NULL, ZSMALLOC_MAGIC);
		return init_pseudo(fc, ZSMALLOC_MAGIC) ? 0 : -ENOMEM;
		}

		static struct file_system_type zsmalloc_fs = {
		.name = "zsmalloc",
		.mount = zs_mount,
		.init_fs_context = zs_init_fs_context,
		.kill_sb = kill_anon_super,
		};

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