From: Christoph Hellwig <hch@lst.de>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Daniel Vetter <daniel@ffwll.ch>, Nadav Amit <namit@vmware.com>,
"VMware, Inc." <pv-drivers@vmware.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
David Hildenbrand <david@redhat.com>,
Minchan Kim <minchan@kernel.org>, Nitin Gupta <ngupta@vflare.org>,
Jason Gunthorpe <jgg@nvidia.com>,
Alex Williamson <alex.williamson@redhat.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org,
virtualization@lists.linux-foundation.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 8/9] z3fold: remove the z3fold file system
Date: Tue, 9 Mar 2021 16:53:47 +0100 [thread overview]
Message-ID: <20210309155348.974875-9-hch@lst.de> (raw)
In-Reply-To: <20210309155348.974875-1-hch@lst.de>
Just use the generic anon_inode file system.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
mm/z3fold.c | 38 ++------------------------------------
1 file changed, 2 insertions(+), 36 deletions(-)
diff --git a/mm/z3fold.c b/mm/z3fold.c
index e7cd9298b221f5..e0749a3d8987de 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -23,6 +23,7 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/anon_inodes.h>
#include <linux/atomic.h>
#include <linux/sched.h>
#include <linux/cpumask.h>
@@ -345,38 +346,10 @@ static inline void free_handle(unsigned long handle, struct z3fold_header *zhdr)
}
}
-static int z3fold_init_fs_context(struct fs_context *fc)
-{
- return init_pseudo(fc, Z3FOLD_MAGIC) ? 0 : -ENOMEM;
-}
-
-static struct file_system_type z3fold_fs = {
- .name = "z3fold",
- .init_fs_context = z3fold_init_fs_context,
- .kill_sb = kill_anon_super,
-};
-
-static struct vfsmount *z3fold_mnt;
-static int z3fold_mount(void)
-{
- int ret = 0;
-
- z3fold_mnt = kern_mount(&z3fold_fs);
- if (IS_ERR(z3fold_mnt))
- ret = PTR_ERR(z3fold_mnt);
-
- return ret;
-}
-
-static void z3fold_unmount(void)
-{
- kern_unmount(z3fold_mnt);
-}
-
static const struct address_space_operations z3fold_aops;
static int z3fold_register_migration(struct z3fold_pool *pool)
{
- pool->inode = alloc_anon_inode_sb(z3fold_mnt->mnt_sb);
+ pool->inode = alloc_anon_inode();
if (IS_ERR(pool->inode)) {
pool->inode = NULL;
return 1;
@@ -1787,22 +1760,15 @@ MODULE_ALIAS("zpool-z3fold");
static int __init init_z3fold(void)
{
- int ret;
-
/* Make sure the z3fold header is not larger than the page size */
BUILD_BUG_ON(ZHDR_SIZE_ALIGNED > PAGE_SIZE);
- ret = z3fold_mount();
- if (ret)
- return ret;
zpool_register_driver(&z3fold_zpool_driver);
-
return 0;
}
static void __exit exit_z3fold(void)
{
- z3fold_unmount();
zpool_unregister_driver(&z3fold_zpool_driver);
}
--
2.30.1
next prev parent reply other threads:[~2021-03-09 15:57 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 15:53 make alloc_anon_inode more useful Christoph Hellwig
2021-03-09 15:53 ` [PATCH 1/9] fs: rename alloc_anon_inode to alloc_anon_inode_sb Christoph Hellwig
2021-03-09 16:21 ` David Hildenbrand
2021-03-09 19:33 ` Gao Xiang
2021-03-10 6:39 ` Minchan Kim
2021-03-10 8:30 ` Christoph Hellwig
2021-03-10 9:33 ` Christian Brauner
2021-03-09 15:53 ` [PATCH 2/9] fs: add an argument-less alloc_anon_inode Christoph Hellwig
2021-03-09 16:22 ` David Hildenbrand
2021-03-09 19:34 ` Gao Xiang
2021-03-10 9:35 ` Christian Brauner
2021-03-09 15:53 ` [PATCH 3/9] powerpc/pseries: remove the ppc-cmm file system Christoph Hellwig
2021-03-09 16:26 ` David Hildenbrand
2021-03-09 16:30 ` Jason Gunthorpe
2021-03-10 16:29 ` Al Viro
2021-03-11 8:42 ` Christoph Hellwig
2021-03-09 15:53 ` [PATCH 4/9] drm: remove the drm " Christoph Hellwig
2021-03-10 16:32 ` Al Viro
2021-03-11 8:35 ` Christoph Hellwig
2021-03-09 15:53 ` [PATCH 5/9] vmw_balloon: remove the balloon-vmware " Christoph Hellwig
2021-03-09 16:28 ` David Hildenbrand
2021-03-09 15:53 ` [PATCH 6/9] virtio_balloon: remove the balloon-kvm " Christoph Hellwig
2021-03-09 16:29 ` David Hildenbrand
2021-03-09 15:53 ` [PATCH 7/9] iomem: remove the iomem " Christoph Hellwig
2021-03-14 13:55 ` [iomem] e14497b88f: BUG:KASAN:null-ptr-deref_in_alloc_anon_inode kernel test robot
2021-03-09 15:53 ` Christoph Hellwig [this message]
2021-03-09 15:53 ` [PATCH 9/9] zsmalloc: remove the zsmalloc file system Christoph Hellwig
2021-03-10 6:44 ` Minchan Kim
2021-03-09 16:54 ` make alloc_anon_inode more useful Jason Gunthorpe
2021-03-10 8:32 ` Christoph Hellwig
2021-03-10 4:05 ` Matthew Wilcox
2021-03-10 8:37 ` Christoph Hellwig
2023-02-03 9:49 ` Jingbo Xu
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