[PATCH v2 12/19] NFSv4: Fix up delegated attributes in nfs_setattr
From: trondmy@kernel.org
Date: 2024-06-17 01:25:14
Subsystem:
filesystems (vfs and infrastructure), nfs, sunrpc, and lockd clients, the rest · Maintainers:
Alexander Viro, Christian Brauner, Trond Myklebust, Anna Schumaker, Linus Torvalds
From: Trond Myklebust <redacted> nfs_setattr calls nfs_update_inode() directly, so we have to reset the m/ctime there. Signed-off-by: Trond Myklebust <redacted> Signed-off-by: Lance Shelton <redacted> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Trond Myklebust <redacted> --- fs/nfs/inode.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 2aaadcdd6946..70af8c91dda3 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c@@ -606,6 +606,28 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr) } EXPORT_SYMBOL_GPL(nfs_fhget); +static void +nfs_fattr_fixup_delegated(struct inode *inode, struct nfs_fattr *fattr) +{ + unsigned long cache_validity = NFS_I(inode)->cache_validity; + + if (nfs_have_delegated_mtime(inode)) { + if (!(cache_validity & NFS_INO_INVALID_CTIME)) + fattr->valid &= ~(NFS_ATTR_FATTR_PRECTIME | + NFS_ATTR_FATTR_CTIME); + + if (!(cache_validity & NFS_INO_INVALID_MTIME)) + fattr->valid &= ~(NFS_ATTR_FATTR_PREMTIME | + NFS_ATTR_FATTR_MTIME); + + if (!(cache_validity & NFS_INO_INVALID_ATIME)) + fattr->valid &= ~NFS_ATTR_FATTR_ATIME; + } else if (nfs_have_delegated_atime(inode)) { + if (!(cache_validity & NFS_INO_INVALID_ATIME)) + fattr->valid &= ~NFS_ATTR_FATTR_ATIME; + } +} + void nfs_update_delegated_atime(struct inode *inode) { spin_lock(&inode->i_lock);
@@ -2164,6 +2186,9 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr) */ nfsi->read_cache_jiffies = fattr->time_start; + /* Fix up any delegated attributes in the struct nfs_fattr */ + nfs_fattr_fixup_delegated(inode, fattr); + save_cache_validity = nfsi->cache_validity; nfsi->cache_validity &= ~(NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ATIME
--
2.45.2