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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /fs/nfs/callback.h
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'fs/nfs/callback.h')
-rw-r--r--fs/nfs/callback.h204
1 files changed, 204 insertions, 0 deletions
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
new file mode 100644
index 000000000..2a721c422
--- /dev/null
+++ b/fs/nfs/callback.h
@@ -0,0 +1,204 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/fs/nfs/callback.h
+ *
+ * Copyright (C) 2004 Trond Myklebust
+ *
+ * NFSv4 callback definitions
+ */
+#ifndef __LINUX_FS_NFS_CALLBACK_H
+#define __LINUX_FS_NFS_CALLBACK_H
+#include <linux/sunrpc/svc.h>
+
+#define NFS4_CALLBACK 0x40000000
+#define NFS4_CALLBACK_XDRSIZE 2048
+#define NFS4_CALLBACK_BUFSIZE (1024 + NFS4_CALLBACK_XDRSIZE)
+
+enum nfs4_callback_procnum {
+ CB_NULL = 0,
+ CB_COMPOUND = 1,
+};
+
+struct nfs4_slot;
+struct cb_process_state {
+ struct nfs_client *clp;
+ struct nfs4_slot *slot;
+ struct net *net;
+ u32 minorversion;
+ __be32 drc_status;
+ unsigned int referring_calls;
+};
+
+struct cb_compound_hdr_arg {
+ unsigned int taglen;
+ const char *tag;
+ unsigned int minorversion;
+ unsigned int cb_ident; /* v4.0 callback identifier */
+ unsigned nops;
+};
+
+struct cb_compound_hdr_res {
+ __be32 *status;
+ unsigned int taglen;
+ const char *tag;
+ __be32 *nops;
+};
+
+struct cb_getattrargs {
+ struct nfs_fh fh;
+ uint32_t bitmap[3];
+};
+
+struct cb_getattrres {
+ __be32 status;
+ uint32_t bitmap[3];
+ uint64_t size;
+ uint64_t change_attr;
+ struct timespec64 atime;
+ struct timespec64 ctime;
+ struct timespec64 mtime;
+};
+
+struct cb_recallargs {
+ struct nfs_fh fh;
+ nfs4_stateid stateid;
+ uint32_t truncate;
+};
+
+struct referring_call {
+ uint32_t rc_sequenceid;
+ uint32_t rc_slotid;
+};
+
+struct referring_call_list {
+ struct nfs4_sessionid rcl_sessionid;
+ uint32_t rcl_nrefcalls;
+ struct referring_call *rcl_refcalls;
+};
+
+struct cb_sequenceargs {
+ struct sockaddr *csa_addr;
+ struct nfs4_sessionid csa_sessionid;
+ uint32_t csa_sequenceid;
+ uint32_t csa_slotid;
+ uint32_t csa_highestslotid;
+ uint32_t csa_cachethis;
+ uint32_t csa_nrclists;
+ struct referring_call_list *csa_rclists;
+};
+
+struct cb_sequenceres {
+ __be32 csr_status;
+ struct nfs4_sessionid csr_sessionid;
+ uint32_t csr_sequenceid;
+ uint32_t csr_slotid;
+ uint32_t csr_highestslotid;
+ uint32_t csr_target_highestslotid;
+};
+
+extern __be32 nfs4_callback_sequence(void *argp, void *resp,
+ struct cb_process_state *cps);
+
+#define RCA4_TYPE_MASK_RDATA_DLG 0
+#define RCA4_TYPE_MASK_WDATA_DLG 1
+#define RCA4_TYPE_MASK_DIR_DLG 2
+#define RCA4_TYPE_MASK_FILE_LAYOUT 3
+#define RCA4_TYPE_MASK_BLK_LAYOUT 4
+#define RCA4_TYPE_MASK_OBJ_LAYOUT_MIN 8
+#define RCA4_TYPE_MASK_OBJ_LAYOUT_MAX 9
+#define RCA4_TYPE_MASK_OTHER_LAYOUT_MIN 12
+#define RCA4_TYPE_MASK_OTHER_LAYOUT_MAX 15
+#define PNFS_FF_RCA4_TYPE_MASK_READ 16
+#define PNFS_FF_RCA4_TYPE_MASK_RW 17
+#define RCA4_TYPE_MASK_ALL 0x3f31f
+
+struct cb_recallanyargs {
+ uint32_t craa_objs_to_keep;
+ uint32_t craa_type_mask;
+};
+
+extern __be32 nfs4_callback_recallany(void *argp, void *resp,
+ struct cb_process_state *cps);
+
+struct cb_recallslotargs {
+ uint32_t crsa_target_highest_slotid;
+};
+extern __be32 nfs4_callback_recallslot(void *argp, void *resp,
+ struct cb_process_state *cps);
+
+struct cb_layoutrecallargs {
+ uint32_t cbl_recall_type;
+ uint32_t cbl_layout_type;
+ uint32_t cbl_layoutchanged;
+ union {
+ struct {
+ struct nfs_fh cbl_fh;
+ struct pnfs_layout_range cbl_range;
+ nfs4_stateid cbl_stateid;
+ };
+ struct nfs_fsid cbl_fsid;
+ };
+};
+
+extern __be32 nfs4_callback_layoutrecall(void *argp, void *resp,
+ struct cb_process_state *cps);
+
+struct cb_devicenotifyitem {
+ uint32_t cbd_notify_type;
+ uint32_t cbd_layout_type;
+ struct nfs4_deviceid cbd_dev_id;
+ uint32_t cbd_immediate;
+};
+
+struct cb_devicenotifyargs {
+ uint32_t ndevs;
+ struct cb_devicenotifyitem *devs;
+};
+
+extern __be32 nfs4_callback_devicenotify(void *argp, void *resp,
+ struct cb_process_state *cps);
+
+struct cb_notify_lock_args {
+ struct nfs_fh cbnl_fh;
+ struct nfs_lowner cbnl_owner;
+ bool cbnl_valid;
+};
+
+extern __be32 nfs4_callback_notify_lock(void *argp, void *resp,
+ struct cb_process_state *cps);
+#ifdef CONFIG_NFS_V4_2
+struct cb_offloadargs {
+ struct nfs_fh coa_fh;
+ nfs4_stateid coa_stateid;
+ uint32_t error;
+ uint64_t wr_count;
+ struct nfs_writeverf wr_writeverf;
+};
+
+extern __be32 nfs4_callback_offload(void *args, void *dummy,
+ struct cb_process_state *cps);
+#endif /* CONFIG_NFS_V4_2 */
+extern int check_gss_callback_principal(struct nfs_client *, struct svc_rqst *);
+extern __be32 nfs4_callback_getattr(void *argp, void *resp,
+ struct cb_process_state *cps);
+extern __be32 nfs4_callback_recall(void *argp, void *resp,
+ struct cb_process_state *cps);
+#if IS_ENABLED(CONFIG_NFS_V4)
+extern int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt);
+extern void nfs_callback_down(int minorversion, struct net *net,
+ struct rpc_xprt *xprt);
+#endif /* CONFIG_NFS_V4 */
+/*
+ * nfs41: Callbacks are expected to not cause substantial latency,
+ * so we limit their concurrency to 1 by setting up the maximum number
+ * of slots for the backchannel.
+ */
+#define NFS41_BC_MIN_CALLBACKS 1
+#define NFS41_BC_MAX_CALLBACKS 1
+
+#define NFS4_MIN_NR_CALLBACK_THREADS 1
+
+extern unsigned int nfs_callback_set_tcpport;
+extern unsigned short nfs_callback_nr_threads;
+
+#endif /* __LINUX_FS_NFS_CALLBACK_H */