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authorLinus Torvalds <torvalds@linux-foundation.org>2014-04-06 10:09:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-06 10:09:38 -0700
commit2b3a8fd735f86ebeb2b9d061054003000c36b654 (patch)
tree209c969216b0f46315fc1f53a6c999a980d3ed15 /fs/nfs/inode.c
parent6f4c98e1c22c28e00b8f050cce895a6b74db15d1 (diff)
parent9581a4ae75517099bc87e1c43d1a8f35b55741b9 (diff)
downloadop-kernel-dev-2b3a8fd735f86ebeb2b9d061054003000c36b654.zip
op-kernel-dev-2b3a8fd735f86ebeb2b9d061054003000c36b654.tar.gz
Merge tag 'nfs-for-3.15-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust: "Highlights include: - Stable fix for a use after free issue in the NFSv4.1 open code - Fix the SUNRPC bi-directional RPC code to account for TCP segmentation - Optimise usage of readdirplus when confronted with 'ls -l' situations - Soft mount bugfixes - NFS over RDMA bugfixes - NFSv4 close locking fixes - Various NFSv4.x client state management optimisations - Rename/unlink code cleanups" * tag 'nfs-for-3.15-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits) nfs: pass string length to pr_notice message about readdir loops NFSv4: Fix a use-after-free problem in open() SUNRPC: rpc_restart_call/rpc_restart_call_prepare should clear task->tk_status SUNRPC: Don't let rpc_delay() clobber non-timeout errors SUNRPC: Ensure call_connect_status() deals correctly with SOFTCONN tasks SUNRPC: Ensure call_status() deals correctly with SOFTCONN tasks NFSv4: Ensure we respect soft mount timeouts during trunking discovery NFSv4: Schedule recovery if nfs40_walk_client_list() is interrupted NFS: advertise only supported callback netids SUNRPC: remove KERN_INFO from dprintk() call sites SUNRPC: Fix large reads on NFS/RDMA NFS: Clean up: revert increase in READDIR RPC buffer max size SUNRPC: Ensure that call_bind times out correctly SUNRPC: Ensure that call_connect times out correctly nfs: emit a fsnotify_nameremove call in sillyrename codepath nfs: remove synchronous rename code nfs: convert nfs_rename to use async_rename infrastructure nfs: make nfs_async_rename non-static nfs: abstract out code needed to complete a sillyrename NFSv4: Clear the open state flags if the new stateid does not match ...
Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c34
1 files changed, 27 insertions, 7 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index c4702ba..0c43897 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -588,6 +588,25 @@ void nfs_setattr_update_inode(struct inode *inode, struct iattr *attr)
}
EXPORT_SYMBOL_GPL(nfs_setattr_update_inode);
+static void nfs_request_parent_use_readdirplus(struct dentry *dentry)
+{
+ struct dentry *parent;
+
+ parent = dget_parent(dentry);
+ nfs_force_use_readdirplus(parent->d_inode);
+ dput(parent);
+}
+
+static bool nfs_need_revalidate_inode(struct inode *inode)
+{
+ if (NFS_I(inode)->cache_validity &
+ (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_LABEL))
+ return true;
+ if (nfs_attribute_cache_expired(inode))
+ return true;
+ return false;
+}
+
int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
{
struct inode *inode = dentry->d_inode;
@@ -616,10 +635,13 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
need_atime = 0;
- if (need_atime)
- err = __nfs_revalidate_inode(NFS_SERVER(inode), inode);
- else
- err = nfs_revalidate_inode(NFS_SERVER(inode), inode);
+ if (need_atime || nfs_need_revalidate_inode(inode)) {
+ struct nfs_server *server = NFS_SERVER(inode);
+
+ if (server->caps & NFS_CAP_READDIRPLUS)
+ nfs_request_parent_use_readdirplus(dentry);
+ err = __nfs_revalidate_inode(server, inode);
+ }
if (!err) {
generic_fillattr(inode, stat);
stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode));
@@ -961,9 +983,7 @@ int nfs_attribute_cache_expired(struct inode *inode)
*/
int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
{
- if (!(NFS_I(inode)->cache_validity &
- (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_LABEL))
- && !nfs_attribute_cache_expired(inode))
+ if (!nfs_need_revalidate_inode(inode))
return NFS_STALE(inode) ? -ESTALE : 0;
return __nfs_revalidate_inode(server, inode);
}
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