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CIFS: Request SMB2.1 leases

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if server supports them and we need oplocks.

Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
This commit is contained in:
Pavel Shilovsky
2012-09-19 06:22:44 -07:00
committed by Steve French
父節點 579f905323
當前提交 b8c32dbb0d
共有 8 個文件被更改，包括 256 次插入 和 27 次删除
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21
fs/cifs/file.c
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@@ -177,8 +177,9 @@ cifs_nt_open(char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
int disposition;
int create_options = CREATE_NOT_DIR;
FILE_ALL_INFO *buf;
struct TCP_Server_Info *server = tcon->ses->server;
if (!tcon->ses->server->ops->open)
if (!server->ops->open)
return -ENOSYS;
desired_access = cifs_convert_flags(f_flags);
@@ -218,9 +219,9 @@ cifs_nt_open(char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
rc = tcon->ses->server->ops->open(xid, tcon, full_path, disposition,
desired_access, create_options, fid,
oplock, buf, cifs_sb);
rc = server->ops->open(xid, tcon, full_path, disposition,
desired_access, create_options, fid, oplock, buf,
cifs_sb);
if (rc)
goto out;
@@ -372,6 +373,7 @@ int cifs_open(struct inode *inode, struct file *file)
unsigned int xid;
__u32 oplock;
struct cifs_sb_info *cifs_sb;
struct TCP_Server_Info *server;
struct cifs_tcon *tcon;
struct tcon_link *tlink;
struct cifsFileInfo *cfile = NULL;
@@ -388,6 +390,7 @@ int cifs_open(struct inode *inode, struct file *file)
return PTR_ERR(tlink);
}
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
full_path = build_path_from_dentry(file->f_path.dentry);
if (full_path == NULL) {
@@ -432,6 +435,9 @@ int cifs_open(struct inode *inode, struct file *file)
}
if (!posix_open_ok) {
if (server->ops->get_lease_key)
server->ops->get_lease_key(inode, &fid);
rc = cifs_nt_open(full_path, inode, cifs_sb, tcon,
file->f_flags, &oplock, &fid, xid);
if (rc)
@@ -440,8 +446,8 @@ int cifs_open(struct inode *inode, struct file *file)
cfile = cifs_new_fileinfo(&fid, file, tlink, oplock);
if (cfile == NULL) {
if (tcon->ses->server->ops->close)
tcon->ses->server->ops->close(xid, tcon, &fid);
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
rc = -ENOMEM;
goto out;
}
@@ -567,6 +573,9 @@ cifs_reopen_file(struct cifsFileInfo *cfile, bool can_flush)
if (backup_cred(cifs_sb))
create_options |= CREATE_OPEN_BACKUP_INTENT;
if (server->ops->get_lease_key)
server->ops->get_lease_key(inode, &fid);
/*
* Can not refresh inode by passing in file_info buf to be returned by
* CIFSSMBOpen and then calling get_inode_info with returned buf since