[5/9] cifs: make rmdir() use compounding
diff mbox series

Message ID 20180820033920.31435-6-lsahlber@redhat.com
State New
Headers show
Series
  • [1/9] cifs: add a smb2_compound_op and change QUERY_INFO to use it
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Commit Message

Ronnie Sahlberg Aug. 20, 2018, 3:39 a.m. UTC
This and previous patches drop the number of roundtrips we need for rmdir()
from 6 to 2.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
---
 fs/cifs/smb2inode.c | 40 +++++++++++++++++++++++++++++-----------
 fs/cifs/smb2pdu.c   | 16 ----------------
 fs/cifs/smb2proto.h |  2 --
 3 files changed, 29 insertions(+), 29 deletions(-)

Patch
diff mbox series

diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 788e1bbaea89..a9b36c2329ae 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -56,9 +56,12 @@  smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
 	struct kvec rsp_iov[3];
 	struct kvec open_iov[5]; /* 4 + potential padding. */
 	struct kvec qi_iov[1];
+	struct kvec si_iov[2];  /* 1 + potential padding. */
 	struct kvec close_iov[1];
-	struct smb2_query_info_rsp *rsp = NULL;
+	struct smb2_query_info_rsp *qi_rsp = NULL;
 	int flags = 0;
+	__u8 delete_pending = 1;
+	unsigned int size;
 
 	if (smb3_encryption_required(tcon))
 		flags |= CIFS_TRANSFORM_REQ;
@@ -113,6 +116,21 @@  smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
 		 * SMB2_open() call.
 		 */
 		break;
+	case SMB2_OP_RMDIR:
+		memset(&si_iov, 0, sizeof(si_iov));
+		rqst[num_rqst].rq_iov = si_iov;
+		rqst[num_rqst].rq_nvec = 1;
+
+		data = &delete_pending;
+		size = 1; /* sizeof __u8 */
+
+		rc = SMB2_set_info_init(tcon, &rqst[num_rqst], COMPOUND_FID,
+					COMPOUND_FID, current->tgid,
+					FILE_DISPOSITION_INFORMATION,
+					SMB2_O_INFO_FILE, 0, &data, &size);
+		smb2_set_next_command(server, &rqst[num_rqst]);
+		smb2_set_related(&rqst[num_rqst++]);
+		break;
 	default:
 		cifs_dbg(VFS, "Invalid command\n");
 		rc = -EINVAL;
@@ -138,10 +156,10 @@  smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
 	switch (command) {
 	case SMB2_OP_QUERY_INFO:
 		if (rc == 0) {
-			rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base;
+			qi_rsp = (struct smb2_query_info_rsp *)rsp_iov[1].iov_base;
 			rc = smb2_validate_and_copy_iov(
-				le16_to_cpu(rsp->OutputBufferOffset),
-				le32_to_cpu(rsp->OutputBufferLength),
+				le16_to_cpu(qi_rsp->OutputBufferOffset),
+				le32_to_cpu(qi_rsp->OutputBufferLength),
 				&rsp_iov[1], sizeof(struct smb2_file_all_info),
 				data);
 		}
@@ -152,6 +170,10 @@  smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
 	case SMB2_OP_MKDIR:
 		SMB2_close_free(&rqst[1]);
 		break;
+	case SMB2_OP_RMDIR:
+		SMB2_set_info_free(&rqst[1]);
+		SMB2_close_free(&rqst[2]);
+		break;
 	}
 	free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
 	free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
@@ -202,10 +224,6 @@  smb2_open_op_close(const unsigned int xid, struct cifs_tcon *tcon,
 	}
 
 	switch (command) {
-	case SMB2_OP_RMDIR:
-		tmprc = SMB2_rmdir(xid, tcon, fid.persistent_fid,
-				   fid.volatile_fid);
-		break;
 	case SMB2_OP_RENAME:
 		tmprc = SMB2_rename(xid, tcon, fid.persistent_fid,
 				    fid.volatile_fid, (__le16 *)data);
@@ -319,9 +337,9 @@  int
 smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
 	   struct cifs_sb_info *cifs_sb)
 {
-	return smb2_open_op_close(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
-				  CREATE_NOT_FILE,
-				  NULL, SMB2_OP_RMDIR);
+	return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
+				CREATE_NOT_FILE,
+				NULL, SMB2_OP_RMDIR);
 }
 
 int
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index dd9fc953ef65..e47b7f0bec0c 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -3884,22 +3884,6 @@  SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
 }
 
 int
-SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
-		  u64 persistent_fid, u64 volatile_fid)
-{
-	__u8 delete_pending = 1;
-	void *data;
-	unsigned int size;
-
-	data = &delete_pending;
-	size = 1; /* sizeof __u8 */
-
-	return send_set_info(xid, tcon, persistent_fid, volatile_fid,
-		current->tgid, FILE_DISPOSITION_INFORMATION, SMB2_O_INFO_FILE,
-		0, 1, &data, &size);
-}
-
-int
 SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
 		  u64 persistent_fid, u64 volatile_fid, __le16 *target_file)
 {
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index d75dd884cd2b..9367439f1dd9 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -185,8 +185,6 @@  extern int SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon,
 extern int SMB2_rename(const unsigned int xid, struct cifs_tcon *tcon,
 		       u64 persistent_fid, u64 volatile_fid,
 		       __le16 *target_file);
-extern int SMB2_rmdir(const unsigned int xid, struct cifs_tcon *tcon,
-		      u64 persistent_fid, u64 volatile_fid);
 extern int SMB2_set_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
 			     u64 persistent_fid, u64 volatile_fid,
 			     __le16 *target_file);