GitHub-Mirror/Star64_linux
2
0
Fork 0
mirror of https://github.com/Fishwaldo/Star64_linux.git synced 2025-06-20 05:31:15 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

NFS: Allow getattr to also report readdirplus cache hits

Browse source 
If the use called stat() on an 'ls -l' workload, and the attribute
cache was successfully revalidate by READDIRPLUS, then we want to
report that back so that the readdir code continues to use
readdirplus.

Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Tested-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-12-02 09:15:37 -05:00
parent 63519fbc67
commit 1bcf4c5c59
3 changed files with 18 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

21
fs/nfs/inode.c
View file

@ -634,15 +634,28 @@ 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)
static void nfs_readdirplus_parent_cache_miss(struct dentry *dentry)
{
struct dentry *parent;
if (!nfs_server_capable(d_inode(dentry), NFS_CAP_READDIRPLUS))
return;
parent = dget_parent(dentry);
nfs_force_use_readdirplus(d_inode(parent));
dput(parent);
}
static void nfs_readdirplus_parent_cache_hit(struct dentry *dentry)
{
struct dentry *parent;
if (!nfs_server_capable(d_inode(dentry), NFS_CAP_READDIRPLUS))
return;
parent = dget_parent(dentry);
nfs_advise_use_readdirplus(d_inode(parent));
dput(parent);
}
static bool nfs_need_revalidate_inode(struct inode *inode)
{
if (NFS_I(inode)->cache_validity &
@ -683,10 +696,10 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
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);
nfs_readdirplus_parent_cache_miss(dentry);
err = __nfs_revalidate_inode(server, inode);
}
} else
nfs_readdirplus_parent_cache_hit(dentry);
if (!err) {
generic_fillattr(inode, stat);
stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode));