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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-10 13:03:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-10 13:03:38 -0700 |
commit | 73ccb023a2f25b72c4b95499ca24760588014614 (patch) | |
tree | b0fd9968af3e929ac496f159420a25dc3e1dcafb /fs/nfs/namespace.c | |
parent | f94c128eefcce2e3448d543f13cd7d7b8aa660a5 (diff) | |
parent | 76b2a303384e1d6299c3a0249f0f0ce2f8f96017 (diff) | |
download | op-kernel-dev-73ccb023a2f25b72c4b95499ca24760588014614.zip op-kernel-dev-73ccb023a2f25b72c4b95499ca24760588014614.tar.gz |
Merge tag 'nfs-for-4.12-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"Highlights include:
Stable bugfixes:
- Fix use after free in write error path
- Use GFP_NOIO for two allocations in writeback
- Fix a hang in OPEN related to server reboot
- Check the result of nfs4_pnfs_ds_connect
- Fix an rcu lock leak
Features:
- Removal of the unmaintained and unused OSD pNFS layout
- Cleanup and removal of lots of unnecessary dprintk()s
- Cleanup and removal of some memory failure paths now that GFP_NOFS
is guaranteed to never fail.
- Remove the v3-only data server limitation on pNFS/flexfiles
Bugfixes:
- RPC/RDMA connection handling bugfixes
- Copy offload: fixes to ensure the copied data is COMMITed to disk.
- Readdir: switch back to using the ->iterate VFS interface
- File locking fixes from Ben Coddington
- Various use-after-free and deadlock issues in pNFS
- Write path bugfixes"
* tag 'nfs-for-4.12-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (89 commits)
pNFS/flexfiles: Always attempt to call layoutstats when flexfiles is enabled
NFSv4.1: Work around a Linux server bug...
NFS append COMMIT after synchronous COPY
NFSv4: Fix exclusive create attributes encoding
NFSv4: Fix an rcu lock leak
nfs: use kmap/kunmap directly
NFS: always treat the invocation of nfs_getattr as cache hit when noac is on
Fix nfs_client refcounting if kmalloc fails in nfs4_proc_exchange_id and nfs4_proc_async_renew
NFSv4.1: RECLAIM_COMPLETE must handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION
pNFS: Fix NULL dereference in pnfs_generic_alloc_ds_commits
pNFS: Fix a typo in pnfs_generic_alloc_ds_commits
pNFS: Fix a deadlock when coalescing writes and returning the layout
pNFS: Don't clear the layout return info if there are segments to return
pNFS: Ensure we commit the layout if it has been invalidated
pNFS: Don't send COMMITs to the DSes if the server invalidated our layout
pNFS/flexfiles: Fix up the ff_layout_write_pagelist failure path
pNFS: Ensure we check layout validity before marking it for return
NFS4.1 handle interrupted slot reuse from ERR_DELAY
NFSv4: check return value of xdr_inline_decode
nfs/filelayout: fix NULL pointer dereference in fl_pnfs_update_layout()
...
Diffstat (limited to 'fs/nfs/namespace.c')
-rw-r--r-- | fs/nfs/namespace.c | 34 |
1 files changed, 8 insertions, 26 deletions
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c index 786f175..1a224a3 100644 --- a/fs/nfs/namespace.c +++ b/fs/nfs/namespace.c @@ -143,11 +143,8 @@ struct vfsmount *nfs_d_automount(struct path *path) struct nfs_fh *fh = NULL; struct nfs_fattr *fattr = NULL; - dprintk("--> nfs_d_automount()\n"); - - mnt = ERR_PTR(-ESTALE); if (IS_ROOT(path->dentry)) - goto out_nofree; + return ERR_PTR(-ESTALE); mnt = ERR_PTR(-ENOMEM); fh = nfs_alloc_fhandle(); @@ -155,13 +152,10 @@ struct vfsmount *nfs_d_automount(struct path *path) if (fh == NULL || fattr == NULL) goto out; - dprintk("%s: enter\n", __func__); - mnt = server->nfs_client->rpc_ops->submount(server, path->dentry, fh, fattr); if (IS_ERR(mnt)) goto out; - dprintk("%s: done, success\n", __func__); mntget(mnt); /* prevent immediate expiration */ mnt_set_expiry(mnt, &nfs_automount_list); schedule_delayed_work(&nfs_automount_task, nfs_mountpoint_expiry_timeout); @@ -169,11 +163,6 @@ struct vfsmount *nfs_d_automount(struct path *path) out: nfs_free_fattr(fattr); nfs_free_fhandle(fh); -out_nofree: - if (IS_ERR(mnt)) - dprintk("<-- %s(): error %ld\n", __func__, PTR_ERR(mnt)); - else - dprintk("<-- %s() = %p\n", __func__, mnt); return mnt; } @@ -248,27 +237,20 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh, .fattr = fattr, .authflavor = authflavor, }; - struct vfsmount *mnt = ERR_PTR(-ENOMEM); + struct vfsmount *mnt; char *page = (char *) __get_free_page(GFP_USER); char *devname; - dprintk("--> nfs_do_submount()\n"); - - dprintk("%s: submounting on %pd2\n", __func__, - dentry); if (page == NULL) - goto out; + return ERR_PTR(-ENOMEM); + devname = nfs_devname(dentry, page, PAGE_SIZE); - mnt = (struct vfsmount *)devname; if (IS_ERR(devname)) - goto free_page; - mnt = nfs_do_clone_mount(NFS_SB(dentry->d_sb), devname, &mountdata); -free_page: - free_page((unsigned long)page); -out: - dprintk("%s: done\n", __func__); + mnt = (struct vfsmount *)devname; + else + mnt = nfs_do_clone_mount(NFS_SB(dentry->d_sb), devname, &mountdata); - dprintk("<-- nfs_do_submount() = %p\n", mnt); + free_page((unsigned long)page); return mnt; } EXPORT_SYMBOL_GPL(nfs_do_submount); |