smb: move FILE_SYSTEM_SIZE_INFO to common/fscc.h

Rename the following places:

  - struct filesystem_info -> FILE_SYSTEM_SIZE_INFO
  - FILE_SYSTEM_INFO -> FILE_SYSTEM_SIZE_INFO
  - FreeAllocationUnits -> AvailableAllocationUnits: consistent with MS-FSCC 2.5.8

Then move duplicate definitions to common header file.

Signed-off-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

Author: ChenXiaoSong

fs/smb/client/cifspdu.h

@@ -1982,13 +1982,6 @@ struct aliasInfo92 {
 	int shareNameOffset;
 } __attribute__((packed));
 
-typedef struct {
-	__le64 TotalAllocationUnits;
-	__le64 FreeAllocationUnits;
-	__le32 SectorsPerAllocationUnit;
-	__le32 BytesPerSector;
-} __attribute__((packed)) FILE_SYSTEM_INFO;	/* size info, level 0x103 */
-
 typedef struct {
 	__le32 fsid;
 	__le32 SectorsPerAllocationUnit;

fs/smb/client/cifssmb.c

@@ -4746,7 +4746,7 @@ CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 /* level 0x103 SMB_QUERY_FILE_SYSTEM_INFO */
 	TRANSACTION2_QFSI_REQ *pSMB = NULL;
 	TRANSACTION2_QFSI_RSP *pSMBr = NULL;
-	FILE_SYSTEM_INFO *response_data;
+	FILE_SYSTEM_SIZE_INFO *response_data;
 	int rc = 0;
 	int bytes_returned = 0;
 	__u16 params, byte_count;
@@ -4794,7 +4794,7 @@ CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 			__u16 data_offset = le16_to_cpu(pSMBr->t2.DataOffset);
 
 			response_data =
-			    (FILE_SYSTEM_INFO
+			    (FILE_SYSTEM_SIZE_INFO
 			     *) (((char *) &pSMBr->hdr.Protocol) +
 				 data_offset);
 			FSData->f_bsize =
@@ -4811,7 +4811,7 @@ CIFSSMBQFSInfo(const unsigned int xid, struct cifs_tcon *tcon,
 			FSData->f_blocks =
 			    le64_to_cpu(response_data->TotalAllocationUnits);
 			FSData->f_bfree = FSData->f_bavail =
-			    le64_to_cpu(response_data->FreeAllocationUnits);
+			    le64_to_cpu(response_data->AvailableAllocationUnits);
 			cifs_dbg(FYI, "Blocks: %lld  Free: %lld Block size %ld\n",
 				 (unsigned long long)FSData->f_blocks,
 				 (unsigned long long)FSData->f_bfree,

fs/smb/common/fscc.h

@@ -121,6 +121,14 @@ struct smb2_file_network_open_info {
 #define FILE_CASE_PRESERVED_NAMES	0x00000002
 #define FILE_CASE_SENSITIVE_SEARCH	0x00000001
 
+/* See MS-FSCC 2.5.8 */
+typedef struct {
+	__le64 TotalAllocationUnits;
+	__le64 AvailableAllocationUnits;
+	__le32 SectorsPerAllocationUnit;
+	__le32 BytesPerSector;
+} __packed FILE_SYSTEM_SIZE_INFO;	/* size info, level 0x103 */
+
 /* See MS-FSCC 2.5.10 */
 typedef struct {
 	__le32 DeviceType;

fs/smb/server/smb2pdu.c

@@ -5536,11 +5536,11 @@ static int smb2_get_info_filesystem(struct ksmbd_work *work,
 	}
 	case FS_SIZE_INFORMATION:
 	{
-		struct filesystem_info *info;
+		FILE_SYSTEM_SIZE_INFO *info;
 
-		info = (struct filesystem_info *)(rsp->Buffer);
+		info = (FILE_SYSTEM_SIZE_INFO *)(rsp->Buffer);
 		info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks);
-		info->FreeAllocationUnits = cpu_to_le64(stfs.f_bfree);
+		info->AvailableAllocationUnits = cpu_to_le64(stfs.f_bfree);
 		info->SectorsPerAllocationUnit = cpu_to_le32(1);
 		info->BytesPerSector = cpu_to_le32(stfs.f_bsize);
 		rsp->OutputBufferLength = cpu_to_le32(24);

fs/smb/server/smb_common.h

@@ -112,13 +112,6 @@ struct filesystem_vol_info {
 	__le16 VolumeLabel[];
 } __packed;
 
-struct filesystem_info {
-	__le64 TotalAllocationUnits;
-	__le64 FreeAllocationUnits;
-	__le32 SectorsPerAllocationUnit;
-	__le32 BytesPerSector;
-} __packed;     /* size info, level 0x103 */
-
 #define EXTENDED_INFO_MAGIC 0x43667364	/* Cfsd */
 #define STRING_LENGTH 28