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-rw-r--r--fs/nfsd/Kconfig1
-rw-r--r--fs/nfsd/blocklayout.c158
-rw-r--r--fs/nfsd/filecache.c5
-rw-r--r--fs/nfsd/nfs4layouts.c5
-rw-r--r--fs/nfsd/nfs4state.c16
-rw-r--r--fs/nfsd/nfs4xdr.c19
-rw-r--r--fs/nfsd/nfsctl.c7
-rw-r--r--fs/nfsd/trace.h1
8 files changed, 78 insertions, 134 deletions
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index 6e9ea4ee0f73..3d1d17256a91 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -109,7 +109,6 @@ config NFSD_SCSILAYOUT
depends on NFSD_V4 && BLOCK
select NFSD_PNFS
select EXPORTFS_BLOCK_OPS
- select SCSI_COMMON
help
This option enables support for the exporting pNFS SCSI layouts
in the kernel's NFS server. The pNFS SCSI layout enables NFS
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index c99dee99a3c1..e5c0982a381d 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -9,9 +9,6 @@
#include <linux/pr.h>
#include <linux/nfsd/debug.h>
-#include <scsi/scsi_proto.h>
-#include <scsi/scsi_common.h>
-#include <scsi/scsi_request.h>
#include "blocklayoutxdr.h"
#include "pnfs.h"
@@ -211,109 +208,6 @@ const struct nfsd4_layout_ops bl_layout_ops = {
#endif /* CONFIG_NFSD_BLOCKLAYOUT */
#ifdef CONFIG_NFSD_SCSILAYOUT
-static int nfsd4_scsi_identify_device(struct block_device *bdev,
- struct pnfs_block_volume *b)
-{
- struct request_queue *q = bdev->bd_disk->queue;
- struct request *rq;
- struct scsi_request *req;
- /*
- * The allocation length (passed in bytes 3 and 4 of the INQUIRY
- * command descriptor block) specifies the number of bytes that have
- * been allocated for the data-in buffer.
- * 252 is the highest one-byte value that is a multiple of 4.
- * 65532 is the highest two-byte value that is a multiple of 4.
- */
- size_t bufflen = 252, maxlen = 65532, len, id_len;
- u8 *buf, *d, type, assoc;
- int retries = 1, error;
-
- if (WARN_ON_ONCE(!blk_queue_scsi_passthrough(q)))
- return -EINVAL;
-
-again:
- buf = kzalloc(bufflen, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- rq = blk_get_request(q, REQ_OP_DRV_IN, 0);
- if (IS_ERR(rq)) {
- error = -ENOMEM;
- goto out_free_buf;
- }
- req = scsi_req(rq);
-
- error = blk_rq_map_kern(q, rq, buf, bufflen, GFP_KERNEL);
- if (error)
- goto out_put_request;
-
- req->cmd[0] = INQUIRY;
- req->cmd[1] = 1;
- req->cmd[2] = 0x83;
- req->cmd[3] = bufflen >> 8;
- req->cmd[4] = bufflen & 0xff;
- req->cmd_len = COMMAND_SIZE(INQUIRY);
-
- blk_execute_rq(NULL, rq, 1);
- if (req->result) {
- pr_err("pNFS: INQUIRY 0x83 failed with: %x\n",
- req->result);
- error = -EIO;
- goto out_put_request;
- }
-
- len = (buf[2] << 8) + buf[3] + 4;
- if (len > bufflen) {
- if (len <= maxlen && retries--) {
- blk_put_request(rq);
- kfree(buf);
- bufflen = len;
- goto again;
- }
- pr_err("pNFS: INQUIRY 0x83 response invalid (len = %zd)\n",
- len);
- goto out_put_request;
- }
-
- d = buf + 4;
- for (d = buf + 4; d < buf + len; d += id_len + 4) {
- id_len = d[3];
- type = d[1] & 0xf;
- assoc = (d[1] >> 4) & 0x3;
-
- /*
- * We only care about a EUI-64 and NAA designator types
- * with LU association.
- */
- if (assoc != 0x00)
- continue;
- if (type != 0x02 && type != 0x03)
- continue;
- if (id_len != 8 && id_len != 12 && id_len != 16)
- continue;
-
- b->scsi.code_set = PS_CODE_SET_BINARY;
- b->scsi.designator_type = type == 0x02 ?
- PS_DESIGNATOR_EUI64 : PS_DESIGNATOR_NAA;
- b->scsi.designator_len = id_len;
- memcpy(b->scsi.designator, d + 4, id_len);
-
- /*
- * If we found a 8 or 12 byte descriptor continue on to
- * see if a 16 byte one is available. If we find a
- * 16 byte descriptor we're done.
- */
- if (id_len == 16)
- break;
- }
-
-out_put_request:
- blk_put_request(rq);
-out_free_buf:
- kfree(buf);
- return error;
-}
-
#define NFSD_MDS_PR_KEY 0x0100000000000000ULL
/*
@@ -325,6 +219,31 @@ static u64 nfsd4_scsi_pr_key(struct nfs4_client *clp)
return ((u64)clp->cl_clientid.cl_boot << 32) | clp->cl_clientid.cl_id;
}
+static const u8 designator_types[] = {
+ PS_DESIGNATOR_EUI64,
+ PS_DESIGNATOR_NAA,
+};
+
+static int
+nfsd4_block_get_unique_id(struct gendisk *disk, struct pnfs_block_volume *b)
+{
+ int ret, i;
+
+ for (i = 0; i < ARRAY_SIZE(designator_types); i++) {
+ u8 type = designator_types[i];
+
+ ret = disk->fops->get_unique_id(disk, b->scsi.designator, type);
+ if (ret > 0) {
+ b->scsi.code_set = PS_CODE_SET_BINARY;
+ b->scsi.designator_type = type;
+ b->scsi.designator_len = ret;
+ return 0;
+ }
+ }
+
+ return -EINVAL;
+}
+
static int
nfsd4_block_get_device_info_scsi(struct super_block *sb,
struct nfs4_client *clp,
@@ -333,7 +252,7 @@ nfsd4_block_get_device_info_scsi(struct super_block *sb,
struct pnfs_block_deviceaddr *dev;
struct pnfs_block_volume *b;
const struct pr_ops *ops;
- int error;
+ int ret;
dev = kzalloc(sizeof(struct pnfs_block_deviceaddr) +
sizeof(struct pnfs_block_volume), GFP_KERNEL);
@@ -347,33 +266,38 @@ nfsd4_block_get_device_info_scsi(struct super_block *sb,
b->type = PNFS_BLOCK_VOLUME_SCSI;
b->scsi.pr_key = nfsd4_scsi_pr_key(clp);
- error = nfsd4_scsi_identify_device(sb->s_bdev, b);
- if (error)
- return error;
+ ret = nfsd4_block_get_unique_id(sb->s_bdev->bd_disk, b);
+ if (ret < 0)
+ goto out_free_dev;
+ ret = -EINVAL;
ops = sb->s_bdev->bd_disk->fops->pr_ops;
if (!ops) {
pr_err("pNFS: device %s does not support PRs.\n",
sb->s_id);
- return -EINVAL;
+ goto out_free_dev;
}
- error = ops->pr_register(sb->s_bdev, 0, NFSD_MDS_PR_KEY, true);
- if (error) {
+ ret = ops->pr_register(sb->s_bdev, 0, NFSD_MDS_PR_KEY, true);
+ if (ret) {
pr_err("pNFS: failed to register key for device %s.\n",
sb->s_id);
- return -EINVAL;
+ goto out_free_dev;
}
- error = ops->pr_reserve(sb->s_bdev, NFSD_MDS_PR_KEY,
+ ret = ops->pr_reserve(sb->s_bdev, NFSD_MDS_PR_KEY,
PR_EXCLUSIVE_ACCESS_REG_ONLY, 0);
- if (error) {
+ if (ret) {
pr_err("pNFS: failed to reserve device %s.\n",
sb->s_id);
- return -EINVAL;
+ goto out_free_dev;
}
return 0;
+
+out_free_dev:
+ kfree(dev);
+ return ret;
}
static __be32
diff --git a/fs/nfsd/filecache.c b/fs/nfsd/filecache.c
index 7629248fdd53..fdf89fcf1a0c 100644
--- a/fs/nfsd/filecache.c
+++ b/fs/nfsd/filecache.c
@@ -542,7 +542,7 @@ nfsd_file_close_inode_sync(struct inode *inode)
}
/**
- * nfsd_file_close_inode_sync - attempt to forcibly close a nfsd_file
+ * nfsd_file_close_inode - attempt a delayed close of a nfsd_file
* @inode: inode of the file to attempt to remove
*
* Walk the whole hash bucket, looking for any files that correspond to "inode".
@@ -602,6 +602,9 @@ nfsd_file_fsnotify_handle_event(struct fsnotify_mark *mark, u32 mask,
struct inode *inode, struct inode *dir,
const struct qstr *name, u32 cookie)
{
+ if (WARN_ON_ONCE(!inode))
+ return 0;
+
trace_nfsd_file_fsnotify_handle_event(inode, mask);
/* Should be no marks on non-regular files */
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index a97873f2d22b..6d1b5bb051c5 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -145,8 +145,9 @@ void nfsd4_setup_layout_type(struct svc_export *exp)
#ifdef CONFIG_NFSD_SCSILAYOUT
if (sb->s_export_op->map_blocks &&
sb->s_export_op->commit_blocks &&
- sb->s_bdev && sb->s_bdev->bd_disk->fops->pr_ops &&
- blk_queue_scsi_passthrough(sb->s_bdev->bd_disk->queue))
+ sb->s_bdev &&
+ sb->s_bdev->bd_disk->fops->pr_ops &&
+ sb->s_bdev->bd_disk->fops->get_unique_id)
exp->ex_layout_types |= 1 << LAYOUT_SCSI;
#endif
}
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e49a38cd585f..bfad94c70b84 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3570,7 +3570,7 @@ static struct nfsd4_conn *__nfsd4_find_conn(struct svc_xprt *xpt, struct nfsd4_s
}
static __be32 nfsd4_match_existing_connection(struct svc_rqst *rqst,
- struct nfsd4_session *session, u32 req)
+ struct nfsd4_session *session, u32 req, struct nfsd4_conn **conn)
{
struct nfs4_client *clp = session->se_client;
struct svc_xprt *xpt = rqst->rq_xprt;
@@ -3593,6 +3593,8 @@ static __be32 nfsd4_match_existing_connection(struct svc_rqst *rqst,
else
status = nfserr_inval;
spin_unlock(&clp->cl_lock);
+ if (status == nfs_ok && conn)
+ *conn = c;
return status;
}
@@ -3617,8 +3619,16 @@ __be32 nfsd4_bind_conn_to_session(struct svc_rqst *rqstp,
status = nfserr_wrong_cred;
if (!nfsd4_mach_creds_match(session->se_client, rqstp))
goto out;
- status = nfsd4_match_existing_connection(rqstp, session, bcts->dir);
- if (status == nfs_ok || status == nfserr_inval)
+ status = nfsd4_match_existing_connection(rqstp, session,
+ bcts->dir, &conn);
+ if (status == nfs_ok) {
+ if (bcts->dir == NFS4_CDFC4_FORE_OR_BOTH ||
+ bcts->dir == NFS4_CDFC4_BACK)
+ conn->cn_flags |= NFS4_CDFC4_BACK;
+ nfsd4_probe_callback(session->se_client);
+ goto out;
+ }
+ if (status == nfserr_inval)
goto out;
status = nfsd4_map_bcts_dir(&bcts->dir);
if (status)
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 9b609aac47e1..b2a1d969a172 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -3544,15 +3544,18 @@ nfsd4_encode_dirent(void *ccdv, const char *name, int namlen,
goto fail;
cd->rd_maxcount -= entry_bytes;
/*
- * RFC 3530 14.2.24 describes rd_dircount as only a "hint", so
- * let's always let through the first entry, at least:
+ * RFC 3530 14.2.24 describes rd_dircount as only a "hint", and
+ * notes that it could be zero. If it is zero, then the server
+ * should enforce only the rd_maxcount value.
*/
- if (!cd->rd_dircount)
- goto fail;
- name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
- if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
- goto fail;
- cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
+ if (cd->rd_dircount) {
+ name_and_cookie = 4 + 4 * XDR_QUADLEN(namlen) + 8;
+ if (name_and_cookie > cd->rd_dircount && cd->cookie_offset)
+ goto fail;
+ cd->rd_dircount -= min(cd->rd_dircount, name_and_cookie);
+ if (!cd->rd_dircount)
+ cd->rd_maxcount = 0;
+ }
cd->cookie_offset = cookie_offset;
skip_entry:
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 5e48bc48942e..af8531c3854a 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -793,7 +793,10 @@ out_close:
svc_xprt_put(xprt);
}
out_err:
- nfsd_destroy(net);
+ if (!list_empty(&nn->nfsd_serv->sv_permsocks))
+ nn->nfsd_serv->sv_nrthreads--;
+ else
+ nfsd_destroy(net);
return err;
}
@@ -1545,7 +1548,7 @@ static int __init init_nfsd(void)
goto out_free_all;
return 0;
out_free_all:
- unregister_pernet_subsys(&nfsd_net_ops);
+ unregister_filesystem(&nfsd_fs_type);
out_free_exports:
remove_proc_entry("fs/nfs/exports", NULL);
remove_proc_entry("fs/nfs", NULL);
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 538520957a81..f1e0d3c51bc2 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -9,6 +9,7 @@
#define _NFSD_TRACE_H
#include <linux/tracepoint.h>
+
#include "export.h"
#include "nfsfh.h"
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 13:52:35 +0000