Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Copyright (c) 2014-2016 Christoph Hellwig.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) #include <linux/exportfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) #include <linux/iomap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) #include <linux/genhd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/pr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/nfsd/debug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <scsi/scsi_proto.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <scsi/scsi_common.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <scsi/scsi_request.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "blocklayoutxdr.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "pnfs.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include "filecache.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #define NFSDDBG_FACILITY	NFSDDBG_PNFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 		struct nfsd4_layoutget *args)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	struct nfsd4_layout_seg *seg = &args->lg_seg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	struct super_block *sb = inode->i_sb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	u32 block_size = i_blocksize(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	struct pnfs_block_extent *bex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	struct iomap iomap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	u32 device_generation = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	if (seg->offset & (block_size - 1)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		dprintk("pnfsd: I/O misaligned\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		goto out_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	 * Some clients barf on non-zero block numbers for NONE or INVALID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	 * layouts, so make sure to zero the whole structure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	bex = kzalloc(sizeof(*bex), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	if (!bex)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		goto out_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	args->lg_content = bex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	error = sb->s_export_op->map_blocks(inode, seg->offset, seg->length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 					    &iomap, seg->iomode != IOMODE_READ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 					    &device_generation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		if (error == -ENXIO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 			goto out_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		goto out_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (iomap.length < args->lg_minlength) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		dprintk("pnfsd: extent smaller than minlength\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		goto out_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	switch (iomap.type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	case IOMAP_MAPPED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		if (seg->iomode == IOMODE_READ)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 			bex->es = PNFS_BLOCK_READ_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 			bex->es = PNFS_BLOCK_READWRITE_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 		bex->soff = iomap.addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	case IOMAP_UNWRITTEN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		if (seg->iomode & IOMODE_RW) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			 * Crack monkey special case from section 2.3.1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 			 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			if (args->lg_minlength == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 				dprintk("pnfsd: no soup for you!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 				goto out_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 			bex->es = PNFS_BLOCK_INVALID_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 			bex->soff = iomap.addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	case IOMAP_HOLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		if (seg->iomode == IOMODE_READ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 			bex->es = PNFS_BLOCK_NONE_DATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	case IOMAP_DELALLOC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		WARN(1, "pnfsd: filesystem returned %d extent\n", iomap.type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 		goto out_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	error = nfsd4_set_deviceid(&bex->vol_id, fhp, device_generation);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 		goto out_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	bex->foff = iomap.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	bex->len = iomap.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	seg->offset = iomap.offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	seg->length = iomap.length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	dprintk("GET: 0x%llx:0x%llx %d\n", bex->foff, bex->len, bex->es);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) out_error:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	seg->length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	return nfserrno(error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) out_layoutunavailable:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	seg->length = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	return nfserr_layoutunavailable;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) nfsd4_block_commit_blocks(struct inode *inode, struct nfsd4_layoutcommit *lcp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		struct iomap *iomaps, int nr_iomaps)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	loff_t new_size = lcp->lc_last_wr + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	struct iattr iattr = { .ia_valid = 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	if (lcp->lc_mtime.tv_nsec == UTIME_NOW ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	    timespec64_compare(&lcp->lc_mtime, &inode->i_mtime) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		lcp->lc_mtime = current_time(inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	iattr.ia_valid |= ATTR_ATIME | ATTR_CTIME | ATTR_MTIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	iattr.ia_atime = iattr.ia_ctime = iattr.ia_mtime = lcp->lc_mtime;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	if (new_size > i_size_read(inode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		iattr.ia_valid |= ATTR_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		iattr.ia_size = new_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	error = inode->i_sb->s_export_op->commit_blocks(inode, iomaps,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 			nr_iomaps, &iattr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	kfree(iomaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	return nfserrno(error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #ifdef CONFIG_NFSD_BLOCKLAYOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) nfsd4_block_get_device_info_simple(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 		struct nfsd4_getdeviceinfo *gdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	struct pnfs_block_deviceaddr *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	struct pnfs_block_volume *b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	dev = kzalloc(sizeof(struct pnfs_block_deviceaddr) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		      sizeof(struct pnfs_block_volume), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	if (!dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	gdp->gd_device = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	dev->nr_volumes = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	b = &dev->volumes[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	b->type = PNFS_BLOCK_VOLUME_SIMPLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	b->simple.sig_len = PNFS_BLOCK_UUID_LEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	return sb->s_export_op->get_uuid(sb, b->simple.sig, &b->simple.sig_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 			&b->simple.offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) nfsd4_block_proc_getdeviceinfo(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		struct nfs4_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 		struct nfsd4_getdeviceinfo *gdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	if (bdev_is_partition(sb->s_bdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		return nfserr_inval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	return nfserrno(nfsd4_block_get_device_info_simple(sb, gdp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) nfsd4_block_proc_layoutcommit(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		struct nfsd4_layoutcommit *lcp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	struct iomap *iomaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	int nr_iomaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	nr_iomaps = nfsd4_block_decode_layoutupdate(lcp->lc_up_layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 			lcp->lc_up_len, &iomaps, i_blocksize(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	if (nr_iomaps < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 		return nfserrno(nr_iomaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	return nfsd4_block_commit_blocks(inode, lcp, iomaps, nr_iomaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) const struct nfsd4_layout_ops bl_layout_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	 * Pretend that we send notification to the client.  This is a blatant
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	 * lie to force recent Linux clients to cache our device IDs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	 * We rarely ever change the device ID, so the harm of leaking deviceids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	 * for a while isn't too bad.  Unfortunately RFC5661 is a complete mess
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	 * in this regard, but I filed errata 4119 for this a while ago, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	 * hopefully the Linux client will eventually start caching deviceids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	 * without this again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	.notify_types		=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 			NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	.proc_getdeviceinfo	= nfsd4_block_proc_getdeviceinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	.encode_getdeviceinfo	= nfsd4_block_encode_getdeviceinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	.proc_layoutget		= nfsd4_block_proc_layoutget,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	.encode_layoutget	= nfsd4_block_encode_layoutget,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	.proc_layoutcommit	= nfsd4_block_proc_layoutcommit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) #endif /* CONFIG_NFSD_BLOCKLAYOUT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) #ifdef CONFIG_NFSD_SCSILAYOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static int nfsd4_scsi_identify_device(struct block_device *bdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		struct pnfs_block_volume *b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	struct request_queue *q = bdev->bd_disk->queue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	struct request *rq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	struct scsi_request *req;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	 * The allocation length (passed in bytes 3 and 4 of the INQUIRY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	 * command descriptor block) specifies the number of bytes that have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	 * been allocated for the data-in buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	 * 252 is the highest one-byte value that is a multiple of 4.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	 * 65532 is the highest two-byte value that is a multiple of 4.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	size_t bufflen = 252, maxlen = 65532, len, id_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	u8 *buf, *d, type, assoc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	int retries = 1, error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	if (WARN_ON_ONCE(!blk_queue_scsi_passthrough(q)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) again:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	buf = kzalloc(bufflen, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	if (!buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	rq = blk_get_request(q, REQ_OP_SCSI_IN, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	if (IS_ERR(rq)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 		error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		goto out_free_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	req = scsi_req(rq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	error = blk_rq_map_kern(q, rq, buf, bufflen, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		goto out_put_request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	req->cmd[0] = INQUIRY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	req->cmd[1] = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	req->cmd[2] = 0x83;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	req->cmd[3] = bufflen >> 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	req->cmd[4] = bufflen & 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	req->cmd_len = COMMAND_SIZE(INQUIRY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	blk_execute_rq(rq->q, NULL, rq, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	if (req->result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 		pr_err("pNFS: INQUIRY 0x83 failed with: %x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 			req->result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 		error = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		goto out_put_request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	len = (buf[2] << 8) + buf[3] + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	if (len > bufflen) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 		if (len <= maxlen && retries--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 			blk_put_request(rq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 			kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 			bufflen = len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 			goto again;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 		pr_err("pNFS: INQUIRY 0x83 response invalid (len = %zd)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		goto out_put_request;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	d = buf + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	for (d = buf + 4; d < buf + len; d += id_len + 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 		id_len = d[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		type = d[1] & 0xf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		assoc = (d[1] >> 4) & 0x3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		 * We only care about a EUI-64 and NAA designator types
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		 * with LU association.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		if (assoc != 0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		if (type != 0x02 && type != 0x03)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 		if (id_len != 8 && id_len != 12 && id_len != 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		b->scsi.code_set = PS_CODE_SET_BINARY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		b->scsi.designator_type = type == 0x02 ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 			PS_DESIGNATOR_EUI64 : PS_DESIGNATOR_NAA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		b->scsi.designator_len = id_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 		memcpy(b->scsi.designator, d + 4, id_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		 * If we found a 8 or 12 byte descriptor continue on to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		 * see if a 16 byte one is available.  If we find a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 		 * 16 byte descriptor we're done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 		if (id_len == 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) out_put_request:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	blk_put_request(rq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) out_free_buf:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) #define NFSD_MDS_PR_KEY		0x0100000000000000ULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)  * We use the client ID as a unique key for the reservations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321)  * This allows us to easily fence a client when recalls fail.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) static u64 nfsd4_scsi_pr_key(struct nfs4_client *clp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	return ((u64)clp->cl_clientid.cl_boot << 32) | clp->cl_clientid.cl_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) nfsd4_block_get_device_info_scsi(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		struct nfs4_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 		struct nfsd4_getdeviceinfo *gdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	struct pnfs_block_deviceaddr *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	struct pnfs_block_volume *b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 	const struct pr_ops *ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	dev = kzalloc(sizeof(struct pnfs_block_deviceaddr) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 		      sizeof(struct pnfs_block_volume), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 	if (!dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	gdp->gd_device = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	dev->nr_volumes = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	b = &dev->volumes[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 	b->type = PNFS_BLOCK_VOLUME_SCSI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 	b->scsi.pr_key = nfsd4_scsi_pr_key(clp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	error = nfsd4_scsi_identify_device(sb->s_bdev, b);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 	if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	ops = sb->s_bdev->bd_disk->fops->pr_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	if (!ops) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		pr_err("pNFS: device %s does not support PRs.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 			sb->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 	error = ops->pr_register(sb->s_bdev, 0, NFSD_MDS_PR_KEY, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		pr_err("pNFS: failed to register key for device %s.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			sb->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 	error = ops->pr_reserve(sb->s_bdev, NFSD_MDS_PR_KEY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 			PR_EXCLUSIVE_ACCESS_REG_ONLY, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	if (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		pr_err("pNFS: failed to reserve device %s.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 			sb->s_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) nfsd4_scsi_proc_getdeviceinfo(struct super_block *sb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 		struct svc_rqst *rqstp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 		struct nfs4_client *clp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 		struct nfsd4_getdeviceinfo *gdp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	if (bdev_is_partition(sb->s_bdev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 		return nfserr_inval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	return nfserrno(nfsd4_block_get_device_info_scsi(sb, clp, gdp));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) static __be32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) nfsd4_scsi_proc_layoutcommit(struct inode *inode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 		struct nfsd4_layoutcommit *lcp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 	struct iomap *iomaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	int nr_iomaps;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	nr_iomaps = nfsd4_scsi_decode_layoutupdate(lcp->lc_up_layout,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 			lcp->lc_up_len, &iomaps, i_blocksize(inode));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 	if (nr_iomaps < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 		return nfserrno(nr_iomaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	return nfsd4_block_commit_blocks(inode, lcp, iomaps, nr_iomaps);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) nfsd4_scsi_fence_client(struct nfs4_layout_stateid *ls)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	struct nfs4_client *clp = ls->ls_stid.sc_client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	struct block_device *bdev = ls->ls_file->nf_file->f_path.mnt->mnt_sb->s_bdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	bdev->bd_disk->fops->pr_ops->pr_preempt(bdev, NFSD_MDS_PR_KEY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 			nfsd4_scsi_pr_key(clp), 0, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) const struct nfsd4_layout_ops scsi_layout_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 	 * Pretend that we send notification to the client.  This is a blatant
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 	 * lie to force recent Linux clients to cache our device IDs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	 * We rarely ever change the device ID, so the harm of leaking deviceids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	 * for a while isn't too bad.  Unfortunately RFC5661 is a complete mess
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 	 * in this regard, but I filed errata 4119 for this a while ago, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 	 * hopefully the Linux client will eventually start caching deviceids
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	 * without this again.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	.notify_types		=
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 			NOTIFY_DEVICEID4_DELETE | NOTIFY_DEVICEID4_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	.proc_getdeviceinfo	= nfsd4_scsi_proc_getdeviceinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	.encode_getdeviceinfo	= nfsd4_block_encode_getdeviceinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 	.proc_layoutget		= nfsd4_block_proc_layoutget,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	.encode_layoutget	= nfsd4_block_encode_layoutget,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	.proc_layoutcommit	= nfsd4_scsi_proc_layoutcommit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	.fence_client		= nfsd4_scsi_fence_client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) #endif /* CONFIG_NFSD_SCSILAYOUT */