From 53f0adfd76f1ab350cc5d1d188eba366cee00d5d Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Tue, 21 Jul 2026 12:23:03 -0400 Subject: nfs_common: Remove unused nfs_ssc_client_ops infrastructure Clean up: Commit 75333d48f922 ("NFSD: fix use-after-free in __nfs42_ssc_open()") addressed a use-after-free bug by removing the nfsd4_interssc_disconnect() function. Post-copy clean-up was then delegated to NFSD's laundromat. Since that commit, the nfs_do_sb_deactive() wrapper function and the entire nfs_ssc_client_ops infrastructure no longer have any consumers. This includes nfs_do_sb_deactive(), struct nfs_ssc_client_ops, nfs_ssc_register(), nfs_ssc_unregister(), and related registrations in the NFS client. Cc: Olga Kornievskaia Cc: Dai Ngo Link: https://patch.msgid.link/20260721162306.894558-2-cel@kernel.org Signed-off-by: Chuck Lever --- include/linux/nfs_ssc.h | 20 -------------------- 1 file changed, 20 deletions(-) (limited to 'include/linux') diff --git a/include/linux/nfs_ssc.h b/include/linux/nfs_ssc.h index 22265b1ff080..ba236dba8975 100644 --- a/include/linux/nfs_ssc.h +++ b/include/linux/nfs_ssc.h @@ -21,16 +21,8 @@ struct nfs4_ssc_client_ops { void (*sco_close)(struct file *filep); }; -/* - * NFS_FS - */ -struct nfs_ssc_client_ops { - void (*sco_sb_deactive)(struct super_block *sb); -}; - struct nfs_ssc_client_ops_tbl { const struct nfs4_ssc_client_ops *ssc_nfs4_ops; - const struct nfs_ssc_client_ops *ssc_nfs_ops; }; extern void nfs42_ssc_register_ops(void); @@ -67,15 +59,3 @@ struct nfsd4_ssc_umount_item { struct vfsmount *nsui_vfsmount; char nsui_ipaddr[RPC_MAX_ADDRBUFLEN + 1]; }; - -/* - * NFS_FS - */ -extern void nfs_ssc_register(const struct nfs_ssc_client_ops *ops); -extern void nfs_ssc_unregister(const struct nfs_ssc_client_ops *ops); - -static inline void nfs_do_sb_deactive(struct super_block *sb) -{ - if (nfs_ssc_client_tbl.ssc_nfs_ops) - (*nfs_ssc_client_tbl.ssc_nfs_ops->sco_sb_deactive)(sb); -} -- cgit v1.2.3