[PATCH v7 6/9] nfsd: move nfsd4_change_attribute to nfsfh.c

Jeff Layton
2022-10-17T10:59:09Z

This is a pretty big function for inlining. Move it to being
non-inlined.

Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/nfsd/nfsfh.c | 27 +++++++++++++++++++++++++++
fs/nfsd/nfsfh.h | 29 +----------------------------
2 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index d73434200df9..7030d9209903 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -748,3 +748,30 @@ enum fsid_source fsid_source(const struct svc_fh *fhp)
return FSIDSOURCE_UUID;
return FSIDSOURCE_DEV;
}
+
+/*
+ * We could use i_version alone as the change attribute. However,
+ * i_version can go backwards after a reboot. On its own that doesn't
+ * necessarily cause a problem, but if i_version goes backwards and then
+ * is incremented again it could reuse a value that was previously used
+ * before boot, and a client who queried the two values might
+ * incorrectly assume nothing changed.
+ *
+ * By using both ctime and the i_version counter we guarantee that as
+ * long as time doesn't go backwards we never reuse an old value.
+ */
+u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode)
+{
+ if (inode->i_sb->s_export_op->fetch_iversion)
+ return inode->i_sb->s_export_op->fetch_iversion(inode);
+ else if (IS_I_VERSION(inode)) {
+ u64 chattr;
+
+ chattr = stat->ctime.tv_sec;
+ chattr <<= 30;
+ chattr += stat->ctime.tv_nsec;
+ chattr += inode_query_iversion(inode);
+ return chattr;
+ } else
+ return time_to_chattr(&stat->ctime);
+}
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index c3ae6414fc5c..4c223a7a91d4 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -291,34 +291,7 @@ static inline void fh_clear_pre_post_attrs(struct svc_fh *fhp)
fhp->fh_pre_saved = false;
}

-/*
- * We could use i_version alone as the change attribute. However,
- * i_version can go backwards after a reboot. On its own that doesn't
- * necessarily cause a problem, but if i_version goes backwards and then
- * is incremented again it could reuse a value that was previously used
- * before boot, and a client who queried the two values might
- * incorrectly assume nothing changed.
- *
- * By using both ctime and the i_version counter we guarantee that as
- * long as time doesn't go backwards we never reuse an old value.
- */
-static inline u64 nfsd4_change_attribute(struct kstat *stat,
- struct inode *inode)
-{
- if (inode->i_sb->s_export_op->fetch_iversion)
- return inode->i_sb->s_export_op->fetch_iversion(inode);
- else if (IS_I_VERSION(inode)) {
- u64 chattr;
-
- chattr = stat->ctime.tv_sec;
- chattr <<= 30;
- chattr += stat->ctime.tv_nsec;
- chattr += inode_query_iversion(inode);
- return chattr;
- } else
- return time_to_chattr(&stat->ctime);
-}
-
+u64 nfsd4_change_attribute(struct kstat *stat, struct inode *inode);
extern void fh_fill_pre_attrs(struct svc_fh *fhp);
extern void fh_fill_post_attrs(struct svc_fh *fhp);
extern void fh_fill_both_attrs(struct svc_fh *fhp);
--
2.37.3