Merge tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Bugfixes:
   - Fix 'nlink' attribute update races when unlinking a file
   - Add missing initialisers for the directory verifier in various
     places
   - Don't regress the NFSv4 open state due to misordered racing replies
   - Ensure the NFSv4.x callback server uses the correct transport
     connection
   - Fix potential use-after-free races when shutting down the NFSv4.x
     callback server
   - Fix a pNFS layout commit crash
   - Assorted fixes to ensure correct propagation of mount options when
     the client crosses a filesystem boundary and triggers the VFS
     automount code
   - More localio fixes

  Features and cleanups:
   - Add initial support for basic directory delegations
   - SunRPC back channel code cleanups"

* tag 'nfs-for-6.19-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (24 commits)
  NFSv4: Handle NFS4ERR_NOTSUPP errors for directory delegations
  nfs/localio: remove 61 byte hole from needless ____cacheline_aligned
  nfs/localio: remove alignment size checking in nfs_is_local_dio_possible
  NFS: Fix up the automount fs_context to use the correct cred
  NFS: Fix inheritance of the block sizes when automounting
  NFS: Automounted filesystems should inherit ro,noexec,nodev,sync flags
  Revert "nfs: ignore SB_RDONLY when mounting nfs"
  Revert "nfs: clear SB_RDONLY before getting superblock"
  Revert "nfs: ignore SB_RDONLY when remounting nfs"
  NFS: Add a module option to disable directory delegations
  NFS: Shortcut lookup revalidations if we have a directory delegation
  NFS: Request a directory delegation during RENAME
  NFS: Request a directory delegation on ACCESS, CREATE, and UNLINK
  NFS: Add support for sending GDD_GETATTR
  NFSv4/pNFS: Clear NFS_INO_LAYOUTCOMMIT in pnfs_mark_layout_stateid_invalid
  NFSv4.1: protect destroying and nullifying bc_serv structure
  SUNRPC: new helper function for stopping backchannel server
  SUNRPC: cleanup common code in backchannel request
  NFSv4.1: pass transport for callback shutdown
  NFSv4: ensure the open stateid seqid doesn't go backwards
  ...
This commit is contained in:
Linus Torvalds
2025-12-12 21:52:42 +12:00
25 changed files with 386 additions and 92 deletions

View File

@@ -344,6 +344,7 @@ struct nfs4_copy_state {
#define NFS_INO_LAYOUTCOMMITTING (10) /* layoutcommit inflight */
#define NFS_INO_LAYOUTSTATS (11) /* layoutstats inflight */
#define NFS_INO_ODIRECT (12) /* I/O setting is O_DIRECT */
#define NFS_INO_REQ_DIR_DELEG (13) /* Request a directory delegation */
static inline struct nfs_inode *NFS_I(const struct inode *inode)
{

View File

@@ -172,6 +172,11 @@ struct nfs_server {
#define NFS_MOUNT_FORCE_RDIRPLUS 0x20000000
#define NFS_MOUNT_NETUNREACH_FATAL 0x40000000
unsigned int automount_inherit; /* Properties inherited by automount */
#define NFS_AUTOMOUNT_INHERIT_BSIZE 0x0001
#define NFS_AUTOMOUNT_INHERIT_RSIZE 0x0002
#define NFS_AUTOMOUNT_INHERIT_WSIZE 0x0004
unsigned int caps; /* server capabilities */
__u64 fattr_valid; /* Valid attributes */
unsigned int rsize; /* read size */
@@ -305,6 +310,7 @@ struct nfs_server {
#define NFS_CAP_REBOOT_LAYOUTRETURN (1U << 8)
#define NFS_CAP_OFFLOAD_STATUS (1U << 9)
#define NFS_CAP_ZERO_RANGE (1U << 10)
#define NFS_CAP_DIR_DELEG (1U << 11)
#define NFS_CAP_OPEN_XOR (1U << 12)
#define NFS_CAP_DELEGTIME (1U << 13)
#define NFS_CAP_POSIX_LOCK (1U << 14)

View File

@@ -1092,12 +1092,19 @@ struct nfs4_getattr_arg {
struct nfs4_sequence_args seq_args;
const struct nfs_fh * fh;
const u32 * bitmask;
bool get_dir_deleg;
};
struct nfs4_gdd_res {
u32 status;
nfs4_stateid deleg;
};
struct nfs4_getattr_res {
struct nfs4_sequence_res seq_res;
const struct nfs_server * server;
struct nfs_fattr * fattr;
struct nfs4_gdd_res * gdd_res;
};
struct nfs4_link_arg {
@@ -1801,7 +1808,8 @@ struct nfs_rpc_ops {
int (*unlink_done) (struct rpc_task *, struct inode *);
void (*rename_setup) (struct rpc_message *msg,
struct dentry *old_dentry,
struct dentry *new_dentry);
struct dentry *new_dentry,
struct inode *same_parent);
void (*rename_rpc_prepare)(struct rpc_task *task, struct nfs_renamedata *);
int (*rename_done) (struct rpc_task *task, struct inode *old_dir, struct inode *new_dir);
int (*link) (struct inode *, struct inode *, const struct qstr *);

View File

@@ -25,12 +25,14 @@ void xprt_init_bc_request(struct rpc_rqst *req, struct rpc_task *task,
void xprt_free_bc_request(struct rpc_rqst *req);
int xprt_setup_backchannel(struct rpc_xprt *, unsigned int min_reqs);
void xprt_destroy_backchannel(struct rpc_xprt *, unsigned int max_reqs);
void xprt_enqueue_bc_request(struct rpc_rqst *req);
/* Socket backchannel transport methods */
int xprt_setup_bc(struct rpc_xprt *xprt, unsigned int min_reqs);
void xprt_destroy_bc(struct rpc_xprt *xprt, unsigned int max_reqs);
void xprt_free_bc_rqst(struct rpc_rqst *req);
unsigned int xprt_bc_max_slots(struct rpc_xprt *xprt);
void xprt_svc_destroy_nullify_bc(struct rpc_xprt *xprt, struct svc_serv **serv);
/*
* Determine if a shared backchannel is in use
@@ -68,5 +70,10 @@ static inline void set_bc_enabled(struct svc_serv *serv)
static inline void xprt_free_bc_request(struct rpc_rqst *req)
{
}
static inline void xprt_svc_destroy_nullify_bc(struct rpc_xprt *xprt, struct svc_serv **serv)
{
svc_destroy(serv);
}
#endif /* CONFIG_SUNRPC_BACKCHANNEL */
#endif /* _LINUX_SUNRPC_BC_XPRT_H */