Commit b8ea3b1f authored Dec 13, 2024 by Bharath SM Committed by Steve French Dec 23, 2024

smb: enable reuse of deferred file handles for write operations



Previously, deferred file handles were reused only for read
operations, this commit extends to reusing deferred handles
for write operations. By reusing these handles we can reduce
the need for open/close operations over the wire.

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>

parent 4bbf9020

fs/smb/client/file.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -990,7 +990,11 @@ int cifs_open(struct inode inode, struct file file)
		}

		/* Get the cached handle as SMB2 close is deferred */
		if (OPEN_FMODE(file->f_flags) & FMODE_WRITE) {
		rc = cifs_get_writable_path(tcon, full_path, FIND_WR_FSUID_ONLY, &cfile);
		} else {
		rc = cifs_get_readable_path(tcon, full_path, &cfile);
		}
		if (rc == 0) {
		if (file->f_flags == cfile->f_flags) {
		file->private_data = cfile;