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nfsd: don't provide pre/post-op attrs if fh_getattr fails

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nfsd calls fh_getattr to get the latest inode attrs for pre/post-op
info. In the event that fh_getattr fails, it resorts to scraping cached
values out of the inode directly.

Since these attributes are optional, we can just skip providing them
altogether when this happens.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Neil Brown <neilb@suse.de>
This commit is contained in:
Jeff Layton 2023-05-19 07:17:23 -04:00 • committed by Chuck Lever
parent df56b384de
commit 518f375c15
1 changed files with 7 additions and 19 deletions
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26
fs/nfsd/nfsfh.c
View file

@ -623,16 +623,9 @@ void fh_fill_pre_attrs(struct svc_fh *fhp)
inode = d_inode(fhp->fh_dentry);
err = fh_getattr(fhp, &stat);
if (err) {
/* Grab the times from inode anyway */
stat.mtime = inode->i_mtime;
stat.ctime = inode->i_ctime;
stat.size = inode->i_size;
if (v4 && IS_I_VERSION(inode)) {
stat.change_cookie = inode_query_iversion(inode);
stat.result_mask |= STATX_CHANGE_COOKIE;
}
}
if (err)
return;
if (v4)
fhp->fh_pre_change = nfsd4_change_attribute(&stat, inode);
@ -660,15 +653,10 @@ void fh_fill_post_attrs(struct svc_fh *fhp)
printk("nfsd: inode locked twice during operation.\n");
err = fh_getattr(fhp, &fhp->fh_post_attr);
if (err) {
fhp->fh_post_saved = false;
fhp->fh_post_attr.ctime = inode->i_ctime;
if (v4 && IS_I_VERSION(inode)) {
fhp->fh_post_attr.change_cookie = inode_query_iversion(inode);
fhp->fh_post_attr.result_mask |= STATX_CHANGE_COOKIE;
}
} else
fhp->fh_post_saved = true;
if (err)
return;
fhp->fh_post_saved = true;
if (v4)
fhp->fh_post_change =
nfsd4_change_attribute(&fhp->fh_post_attr, inode);