On Tue, Oct 15, 2024 at 02:42:10PM -0400, Jeff Layton wrote: > On Tue, 2024-10-15 at 14:29 -0400, Chuck Lever wrote: > > Hey Jeff - > > > > On Mon, Oct 14, 2024 at 03:26:49PM -0400, Jeff Layton wrote: > > > Fix up nfs4_delegation_stat() to fetch STATX_MODE, > > > > The patch description isn't clear about why this change is needed. > > After reading through the other patches, I'm not sure I'm any more > > enlightened about it ;-) > > > > My original thinking was that this patch was just a cleanup and > simplification, but now that I look, I think the inode we were passing > to this function in nfs4_open_delegation was wrong and that could throw > off the result in some cases. > > Maybe we should add a Fixes: tag for this: > > bf92e5008b17 nfsd: fix initial getattr on write delegation > > ...since that should have fixed this call as well. > > > > > > and then drop the > > > inode parameter from nfsd4_change_attribute(), since it's no longer > > > needed. > > > > Since nfsd4_change_attribute() expects @stat to be filled in by the > > caller, it needs a kdoc-style comment that documents that part of > > the API contract. > > > > Agreed. It needs STATX_MODE and STATX_CTIME. It can also make use of > STATX_CHANGE_COOKIE if present. > > > I can add one when applying this patch, unless you would like to > > resend this one or send me something to squash into this change. > > > > That sounds great. A kdoc comment over that is a good idea. I'll make adjustments before applying. > > > Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> > > > --- > > > fs/nfsd/nfs4state.c | 5 ++--- > > > fs/nfsd/nfs4xdr.c | 2 +- > > > fs/nfsd/nfsfh.c | 11 ++++------- > > > fs/nfsd/nfsfh.h | 3 +-- > > > 4 files changed, 8 insertions(+), 13 deletions(-) > > > > > > diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c > > > index d753926db09eedf629fc3e0938f10b1a6fdb0245..2961a277a79c1f4cdb8c29a7c19abcb3305b61a1 100644 > > > --- a/fs/nfsd/nfs4state.c > > > +++ b/fs/nfsd/nfs4state.c > > > @@ -5953,7 +5953,7 @@ nfs4_delegation_stat(struct nfs4_delegation *dp, struct svc_fh *currentfh, > > > path.dentry = file_dentry(nf->nf_file); > > > > > > rc = vfs_getattr(&path, stat, > > > - (STATX_SIZE | STATX_CTIME | STATX_CHANGE_COOKIE), > > > + (STATX_MODE | STATX_SIZE | STATX_CTIME | STATX_CHANGE_COOKIE), > > > AT_STATX_SYNC_AS_STAT); > > > > > > nfsd_file_put(nf); > > > @@ -6037,8 +6037,7 @@ nfs4_open_delegation(struct nfsd4_open *open, struct nfs4_ol_stateid *stp, > > > } > > > open->op_delegate_type = NFS4_OPEN_DELEGATE_WRITE; > > > dp->dl_cb_fattr.ncf_cur_fsize = stat.size; > > > - dp->dl_cb_fattr.ncf_initial_cinfo = > > > - nfsd4_change_attribute(&stat, d_inode(currentfh->fh_dentry)); > > > + dp->dl_cb_fattr.ncf_initial_cinfo = nfsd4_change_attribute(&stat); > > > trace_nfsd_deleg_write(&dp->dl_stid.sc_stateid); > > > } else { > > > open->op_delegate_type = NFS4_OPEN_DELEGATE_READ; > > > diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c > > > index 6286ad2afa069f5274ffa352209b7d3c8c577dac..da7ec663da7326ad5c68a9c738b12d09cfcdc65a 100644 > > > --- a/fs/nfsd/nfs4xdr.c > > > +++ b/fs/nfsd/nfs4xdr.c > > > @@ -3621,7 +3621,7 @@ nfsd4_encode_fattr4(struct svc_rqst *rqstp, struct xdr_stream *xdr, > > > args.change_attr = ncf->ncf_initial_cinfo; > > > nfs4_put_stid(&dp->dl_stid); > > > } else { > > > - args.change_attr = nfsd4_change_attribute(&args.stat, d_inode(dentry)); > > > + args.change_attr = nfsd4_change_attribute(&args.stat); > > > } > > > > > > if (err) > > > diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c > > > index 4c5deea0e9535f2b197aa6ca1786d61730d53c44..453b7b52317d538971ce41f7e0492e5ab28b236d 100644 > > > --- a/fs/nfsd/nfsfh.c > > > +++ b/fs/nfsd/nfsfh.c > > > @@ -670,20 +670,18 @@ fh_update(struct svc_fh *fhp) > > > __be32 __must_check fh_fill_pre_attrs(struct svc_fh *fhp) > > > { > > > bool v4 = (fhp->fh_maxsize == NFS4_FHSIZE); > > > - struct inode *inode; > > > struct kstat stat; > > > __be32 err; > > > > > > if (fhp->fh_no_wcc || fhp->fh_pre_saved) > > > return nfs_ok; > > > > > > - inode = d_inode(fhp->fh_dentry); > > > err = fh_getattr(fhp, &stat); > > > if (err) > > > return err; > > > > > > if (v4) > > > - fhp->fh_pre_change = nfsd4_change_attribute(&stat, inode); > > > + fhp->fh_pre_change = nfsd4_change_attribute(&stat); > > > > > > fhp->fh_pre_mtime = stat.mtime; > > > fhp->fh_pre_ctime = stat.ctime; > > > @@ -700,7 +698,6 @@ __be32 __must_check fh_fill_pre_attrs(struct svc_fh *fhp) > > > __be32 fh_fill_post_attrs(struct svc_fh *fhp) > > > { > > > bool v4 = (fhp->fh_maxsize == NFS4_FHSIZE); > > > - struct inode *inode = d_inode(fhp->fh_dentry); > > > __be32 err; > > > > > > if (fhp->fh_no_wcc) > > > @@ -716,7 +713,7 @@ __be32 fh_fill_post_attrs(struct svc_fh *fhp) > > > fhp->fh_post_saved = true; > > > if (v4) > > > fhp->fh_post_change = > > > - nfsd4_change_attribute(&fhp->fh_post_attr, inode); > > > + nfsd4_change_attribute(&fhp->fh_post_attr); > > > return nfs_ok; > > > } > > > > > > @@ -824,13 +821,13 @@ enum fsid_source fsid_source(const struct svc_fh *fhp) > > > * assume that the new change attr is always logged to stable storage in some > > > * fashion before the results can be seen. > > > */ > > > -u64 nfsd4_change_attribute(const struct kstat *stat, const struct inode *inode) > > > +u64 nfsd4_change_attribute(const struct kstat *stat) > > > { > > > u64 chattr; > > > > > > if (stat->result_mask & STATX_CHANGE_COOKIE) { > > > chattr = stat->change_cookie; > > > - if (S_ISREG(inode->i_mode) && > > > + if (S_ISREG(stat->mode) && > > > !(stat->attributes & STATX_ATTR_CHANGE_MONOTONIC)) { > > > chattr += (u64)stat->ctime.tv_sec << 30; > > > chattr += stat->ctime.tv_nsec; > > > diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h > > > index 5b7394801dc4270dbd5236f3e2f2237130c73dad..876152a91f122f83fb94ffdfb0eedf8fca56a20c 100644 > > > --- a/fs/nfsd/nfsfh.h > > > +++ b/fs/nfsd/nfsfh.h > > > @@ -297,8 +297,7 @@ static inline void fh_clear_pre_post_attrs(struct svc_fh *fhp) > > > fhp->fh_pre_saved = false; > > > } > > > > > > -u64 nfsd4_change_attribute(const struct kstat *stat, > > > - const struct inode *inode); > > > +u64 nfsd4_change_attribute(const struct kstat *stat); > > > __be32 __must_check fh_fill_pre_attrs(struct svc_fh *fhp); > > > __be32 fh_fill_post_attrs(struct svc_fh *fhp); > > > __be32 __must_check fh_fill_both_attrs(struct svc_fh *fhp); > > > > > > -- > > > 2.47.0 > > > > > > > -- > Jeff Layton <jlayton@xxxxxxxxxx> -- Chuck Lever