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-rw-r--r--fs/smb/client/cifsfs.c6
-rw-r--r--fs/smb/client/cifsglob.h7
-rw-r--r--fs/smb/client/cifssmb.c1
-rw-r--r--fs/smb/client/connect.c3
-rw-r--r--fs/smb/client/file.c4
-rw-r--r--fs/smb/client/ioctl.c2
-rw-r--r--fs/smb/client/link.c1
-rw-r--r--fs/smb/client/reparse.c11
-rw-r--r--fs/smb/client/smb2ops.c24
-rw-r--r--fs/smb/client/smb2pdu.c44
-rw-r--r--fs/smb/server/oplock.c2
-rw-r--r--fs/smb/server/smb2pdu.c18
12 files changed, 73 insertions, 50 deletions
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 2c4b357d85e2..d89485235425 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -75,9 +75,9 @@ unsigned int sign_CIFS_PDUs = 1;
/*
* Global transaction id (XID) information
*/
-unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */
-unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */
-unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */
+unsigned int GlobalCurrentXid; /* protected by GlobalMid_Lock */
+unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Lock */
+unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Lock */
spinlock_t GlobalMid_Lock; /* protects above & list operations on midQ entries */
/*
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 5c9b3e6cd95f..f379b9dc93ba 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -254,7 +254,6 @@ struct cifs_open_info_data {
struct smb_rqst {
struct kvec *rq_iov; /* array of kvecs */
unsigned int rq_nvec; /* number of kvecs in array */
- size_t rq_iter_size; /* Amount of data in ->rq_iter */
struct iov_iter rq_iter; /* Data iterator */
struct xarray rq_buffer; /* Page buffer for encryption */
};
@@ -2017,9 +2016,9 @@ extern spinlock_t cifs_tcp_ses_lock;
/*
* Global transaction id (XID) information
*/
-extern unsigned int GlobalCurrentXid; /* protected by GlobalMid_Sem */
-extern unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Sem */
-extern unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Sem */
+extern unsigned int GlobalCurrentXid; /* protected by GlobalMid_Lock */
+extern unsigned int GlobalTotalActiveXid; /* prot by GlobalMid_Lock */
+extern unsigned int GlobalMaxActiveXid; /* prot by GlobalMid_Lock */
extern spinlock_t GlobalMid_Lock; /* protects above & list operations on midQ entries */
/*
diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
index 595c4b673707..6dce70f17208 100644
--- a/fs/smb/client/cifssmb.c
+++ b/fs/smb/client/cifssmb.c
@@ -1713,7 +1713,6 @@ cifs_async_writev(struct cifs_io_subrequest *wdata)
rqst.rq_iov = iov;
rqst.rq_nvec = 2;
rqst.rq_iter = wdata->subreq.io_iter;
- rqst.rq_iter_size = iov_iter_count(&wdata->subreq.io_iter);
cifs_dbg(FYI, "async write at %llu %zu bytes\n",
wdata->subreq.start, wdata->subreq.len);
diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index d2307162a2de..c1c14274930a 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -4194,6 +4194,9 @@ tlink_rb_insert(struct rb_root *root, struct tcon_link *new_tlink)
*
* If one doesn't exist then insert a new tcon_link struct into the tree and
* try to construct a new one.
+ *
+ * REMEMBER to call cifs_put_tlink() after successful calls to cifs_sb_tlink,
+ * to avoid refcount issues
*/
struct tcon_link *
cifs_sb_tlink(struct cifs_sb_info *cifs_sb)
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 1fc66bcf49eb..f9b302cb8233 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -2912,9 +2912,7 @@ cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to)
if (!CIFS_CACHE_READ(cinode))
return netfs_unbuffered_read_iter(iocb, to);
- if (cap_unix(tcon->ses) &&
- (CIFS_UNIX_FCNTL_CAP & le64_to_cpu(tcon->fsUnixInfo.Capability)) &&
- ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0)) {
+ if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOPOSIXBRL) == 0) {
if (iocb->ki_flags & IOCB_DIRECT)
return netfs_unbuffered_read_iter(iocb, to);
return netfs_buffered_read_iter(iocb, to);
diff --git a/fs/smb/client/ioctl.c b/fs/smb/client/ioctl.c
index 44dbaf9929a4..9bb5c869f4db 100644
--- a/fs/smb/client/ioctl.c
+++ b/fs/smb/client/ioctl.c
@@ -229,9 +229,11 @@ static int cifs_shutdown(struct super_block *sb, unsigned long arg)
shutdown_good:
trace_smb3_shutdown_done(flags, tcon->tid);
+ cifs_put_tlink(tlink);
return 0;
shutdown_out_err:
trace_smb3_shutdown_err(rc, flags, tcon->tid);
+ cifs_put_tlink(tlink);
return rc;
}
diff --git a/fs/smb/client/link.c b/fs/smb/client/link.c
index d86da949a919..80099bbb333b 100644
--- a/fs/smb/client/link.c
+++ b/fs/smb/client/link.c
@@ -588,6 +588,7 @@ cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink)) {
rc = PTR_ERR(tlink);
+ /* BB could be clearer if skipped put_tlink on error here, but harmless */
goto symlink_exit;
}
pTcon = tlink_tcon(tlink);
diff --git a/fs/smb/client/reparse.c b/fs/smb/client/reparse.c
index 689d8a506d45..48c27581ec51 100644
--- a/fs/smb/client/reparse.c
+++ b/fs/smb/client/reparse.c
@@ -378,6 +378,8 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
u32 plen, struct cifs_sb_info *cifs_sb,
bool unicode, struct cifs_open_info_data *data)
{
+ struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
+
data->reparse.buf = buf;
/* See MS-FSCC 2.1.2 */
@@ -394,12 +396,13 @@ int parse_reparse_point(struct reparse_data_buffer *buf,
case IO_REPARSE_TAG_LX_FIFO:
case IO_REPARSE_TAG_LX_CHR:
case IO_REPARSE_TAG_LX_BLK:
- return 0;
+ break;
default:
- cifs_dbg(VFS, "%s: unhandled reparse tag: 0x%08x\n",
- __func__, le32_to_cpu(buf->ReparseTag));
- return -EOPNOTSUPP;
+ cifs_tcon_dbg(VFS | ONCE, "unhandled reparse tag: 0x%08x\n",
+ le32_to_cpu(buf->ReparseTag));
+ break;
}
+ return 0;
}
int smb2_parse_reparse_point(struct cifs_sb_info *cifs_sb,
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 322cabc69c6f..0b9cb1a60d4a 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -3305,6 +3305,7 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
struct inode *inode = file_inode(file);
struct cifsFileInfo *cfile = file->private_data;
struct file_zero_data_information fsctl_buf;
+ unsigned long long end = offset + len, i_size, remote_i_size;
long rc;
unsigned int xid;
__u8 set_sparse = 1;
@@ -3336,6 +3337,27 @@ static long smb3_punch_hole(struct file *file, struct cifs_tcon *tcon,
(char *)&fsctl_buf,
sizeof(struct file_zero_data_information),
CIFSMaxBufSize, NULL, NULL);
+
+ if (rc)
+ goto unlock;
+
+ /* If there's dirty data in the buffer that would extend the EOF if it
+ * were written, then we need to move the EOF marker over to the lower
+ * of the high end of the hole and the proposed EOF. The problem is
+ * that we locally hole-punch the tail of the dirty data, the proposed
+ * EOF update will end up in the wrong place.
+ */
+ i_size = i_size_read(inode);
+ remote_i_size = netfs_inode(inode)->remote_i_size;
+ if (end > remote_i_size && i_size > remote_i_size) {
+ unsigned long long extend_to = umin(end, i_size);
+ rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, cfile->pid, extend_to);
+ if (rc >= 0)
+ netfs_inode(inode)->remote_i_size = extend_to;
+ }
+
+unlock:
filemap_invalidate_unlock(inode->i_mapping);
out:
inode_unlock(inode);
@@ -4446,7 +4468,6 @@ smb3_init_transform_rq(struct TCP_Server_Info *server, int num_rqst,
}
iov_iter_xarray(&new->rq_iter, ITER_SOURCE,
buffer, 0, size);
- new->rq_iter_size = size;
}
}
@@ -4492,7 +4513,6 @@ decrypt_raw_data(struct TCP_Server_Info *server, char *buf,
rqst.rq_nvec = 2;
if (iter) {
rqst.rq_iter = *iter;
- rqst.rq_iter_size = iov_iter_count(iter);
iter_size = iov_iter_count(iter);
}
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index 83facb54276a..2d7e6c42cf18 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -4441,7 +4441,7 @@ smb2_new_read_req(void **buf, unsigned int *total_len,
* If we want to do a RDMA write, fill in and append
* smbd_buffer_descriptor_v1 to the end of read request
*/
- if (smb3_use_rdma_offload(io_parms)) {
+ if (rdata && smb3_use_rdma_offload(io_parms)) {
struct smbd_buffer_descriptor_v1 *v1;
bool need_invalidate = server->dialect == SMB30_PROT_ID;
@@ -4523,7 +4523,6 @@ smb2_readv_callback(struct mid_q_entry *mid)
if (rdata->got_bytes) {
rqst.rq_iter = rdata->subreq.io_iter;
- rqst.rq_iter_size = iov_iter_count(&rdata->subreq.io_iter);
}
WARN_ONCE(rdata->server != mid->server,
@@ -4914,6 +4913,13 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
if (rc)
goto out;
+ rqst.rq_iov = iov;
+ rqst.rq_iter = wdata->subreq.io_iter;
+
+ rqst.rq_iov[0].iov_len = total_len - 1;
+ rqst.rq_iov[0].iov_base = (char *)req;
+ rqst.rq_nvec += 1;
+
if (smb3_encryption_required(tcon))
flags |= CIFS_TRANSFORM_REQ;
@@ -4925,6 +4931,7 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
req->WriteChannelInfoOffset = 0;
req->WriteChannelInfoLength = 0;
req->Channel = SMB2_CHANNEL_NONE;
+ req->Length = cpu_to_le32(io_parms->length);
req->Offset = cpu_to_le64(io_parms->offset);
req->DataOffset = cpu_to_le16(
offsetof(struct smb2_write_req, Buffer));
@@ -4944,7 +4951,6 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
*/
if (smb3_use_rdma_offload(io_parms)) {
struct smbd_buffer_descriptor_v1 *v1;
- size_t data_size = iov_iter_count(&wdata->subreq.io_iter);
bool need_invalidate = server->dialect == SMB30_PROT_ID;
wdata->mr = smbd_register_mr(server->smbd_conn, &wdata->subreq.io_iter,
@@ -4953,9 +4959,10 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
rc = -EAGAIN;
goto async_writev_out;
}
+ /* For RDMA read, I/O size is in RemainingBytes not in Length */
+ req->RemainingBytes = req->Length;
req->Length = 0;
req->DataOffset = 0;
- req->RemainingBytes = cpu_to_le32(data_size);
req->Channel = SMB2_CHANNEL_RDMA_V1_INVALIDATE;
if (need_invalidate)
req->Channel = SMB2_CHANNEL_RDMA_V1;
@@ -4967,31 +4974,22 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
v1->offset = cpu_to_le64(wdata->mr->mr->iova);
v1->token = cpu_to_le32(wdata->mr->mr->rkey);
v1->length = cpu_to_le32(wdata->mr->mr->length);
+
+ rqst.rq_iov[0].iov_len += sizeof(*v1);
+
+ /*
+ * We keep wdata->subreq.io_iter,
+ * but we have to truncate rqst.rq_iter
+ */
+ iov_iter_truncate(&rqst.rq_iter, 0);
}
#endif
- iov[0].iov_len = total_len - 1;
- iov[0].iov_base = (char *)req;
- rqst.rq_iov = iov;
- rqst.rq_nvec = 1;
- rqst.rq_iter = wdata->subreq.io_iter;
- rqst.rq_iter_size = iov_iter_count(&rqst.rq_iter);
if (test_bit(NETFS_SREQ_RETRYING, &wdata->subreq.flags))
smb2_set_replay(server, &rqst);
-#ifdef CONFIG_CIFS_SMB_DIRECT
- if (wdata->mr)
- iov[0].iov_len += sizeof(struct smbd_buffer_descriptor_v1);
-#endif
- cifs_dbg(FYI, "async write at %llu %u bytes iter=%zx\n",
- io_parms->offset, io_parms->length, iov_iter_count(&rqst.rq_iter));
-#ifdef CONFIG_CIFS_SMB_DIRECT
- /* For RDMA read, I/O size is in RemainingBytes not in Length */
- if (!wdata->mr)
- req->Length = cpu_to_le32(io_parms->length);
-#else
- req->Length = cpu_to_le32(io_parms->length);
-#endif
+ cifs_dbg(FYI, "async write at %llu %u bytes iter=%zx\n",
+ io_parms->offset, io_parms->length, iov_iter_count(&wdata->subreq.io_iter));
if (wdata->credits.value > 0) {
shdr->CreditCharge = cpu_to_le16(DIV_ROUND_UP(wdata->subreq.len,
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index a8f52c4ebbda..e546ffa57b55 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -1510,7 +1510,7 @@ void create_lease_buf(u8 *rbuf, struct lease *lease)
* parse_lease_state() - parse lease context containted in file open request
* @open_req: buffer containing smb2 file open(create) request
*
- * Return: oplock state, -ENOENT if create lease context not found
+ * Return: allocated lease context object on success, otherwise NULL
*/
struct lease_ctx_info *parse_lease_state(void *open_req)
{
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 0bc9edf22ba4..20846a4d3031 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -519,7 +519,7 @@ int init_smb2_rsp_hdr(struct ksmbd_work *work)
* smb2_allocate_rsp_buf() - allocate smb2 response buffer
* @work: smb work containing smb request buffer
*
- * Return: 0 on success, otherwise -ENOMEM
+ * Return: 0 on success, otherwise error
*/
int smb2_allocate_rsp_buf(struct ksmbd_work *work)
{
@@ -2770,8 +2770,8 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
}
}
- if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
- req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
+ if ((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
+ req_op_level == SMB2_OPLOCK_LEVEL_BATCH) {
dh_info->CreateGuid =
durable_v2_blob->CreateGuid;
dh_info->persistent =
@@ -2791,8 +2791,8 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
goto out;
}
- if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
- req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
+ if ((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
+ req_op_level == SMB2_OPLOCK_LEVEL_BATCH) {
ksmbd_debug(SMB, "Request for durable open\n");
dh_info->type = dh_idx;
}
@@ -3096,7 +3096,6 @@ int smb2_open(struct ksmbd_work *work)
goto err_out;
}
- file_present = true;
idmap = mnt_idmap(path.mnt);
} else {
if (rc != -ENOENT)
@@ -3414,7 +3413,7 @@ int smb2_open(struct ksmbd_work *work)
goto err_out1;
}
} else {
- if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) {
+ if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE && lc) {
if (S_ISDIR(file_inode(filp)->i_mode)) {
lc->req_state &= ~SMB2_LEASE_WRITE_CACHING_LE;
lc->is_dir = true;
@@ -3713,7 +3712,7 @@ err_out2:
kfree(name);
kfree(lc);
- return 0;
+ return rc;
}
static int readdir_info_level_struct_sz(int info_level)
@@ -4409,7 +4408,8 @@ int smb2_query_dir(struct ksmbd_work *work)
rsp->OutputBufferLength = cpu_to_le32(0);
rsp->Buffer[0] = 0;
rc = ksmbd_iov_pin_rsp(work, (void *)rsp,
- sizeof(struct smb2_query_directory_rsp));
+ offsetof(struct smb2_query_directory_rsp, Buffer)
+ + 1);
if (rc)
goto err_out;
} else {
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-19 01:28:54 +0100