CIFS: Replace netfid with cifs_fid struct in cifsFileInfo
This is help us to extend the code for future protocols that can use
another fid mechanism (as SMB2 that has it divided into two parts:
persistent and violatile).
Also rename variables and refactor the code around the changes.
Reviewed-by: Jeff Layton <jlayton@samba.org>
Signed-off-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 71e9ad9..712f2a4 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -247,39 +247,39 @@
{
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = dentry->d_inode;
- struct cifsInodeInfo *pCifsInode = CIFS_I(inode);
- struct cifsFileInfo *pCifsFile;
+ struct cifsInodeInfo *cinode = CIFS_I(inode);
+ struct cifsFileInfo *cfile;
- pCifsFile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
- if (pCifsFile == NULL)
- return pCifsFile;
+ cfile = kzalloc(sizeof(struct cifsFileInfo), GFP_KERNEL);
+ if (cfile == NULL)
+ return cfile;
- pCifsFile->count = 1;
- pCifsFile->netfid = fileHandle;
- pCifsFile->pid = current->tgid;
- pCifsFile->uid = current_fsuid();
- pCifsFile->dentry = dget(dentry);
- pCifsFile->f_flags = file->f_flags;
- pCifsFile->invalidHandle = false;
- pCifsFile->tlink = cifs_get_tlink(tlink);
- mutex_init(&pCifsFile->fh_mutex);
- INIT_WORK(&pCifsFile->oplock_break, cifs_oplock_break);
- INIT_LIST_HEAD(&pCifsFile->llist);
+ cfile->count = 1;
+ cfile->fid.netfid = fileHandle;
+ cfile->pid = current->tgid;
+ cfile->uid = current_fsuid();
+ cfile->dentry = dget(dentry);
+ cfile->f_flags = file->f_flags;
+ cfile->invalidHandle = false;
+ cfile->tlink = cifs_get_tlink(tlink);
+ mutex_init(&cfile->fh_mutex);
+ INIT_WORK(&cfile->oplock_break, cifs_oplock_break);
+ INIT_LIST_HEAD(&cfile->llist);
spin_lock(&cifs_file_list_lock);
- list_add(&pCifsFile->tlist, &(tlink_tcon(tlink)->openFileList));
+ list_add(&cfile->tlist, &(tlink_tcon(tlink)->openFileList));
/* if readable file instance put first in list*/
if (file->f_mode & FMODE_READ)
- list_add(&pCifsFile->flist, &pCifsInode->openFileList);
+ list_add(&cfile->flist, &cinode->openFileList);
else
- list_add_tail(&pCifsFile->flist, &pCifsInode->openFileList);
+ list_add_tail(&cfile->flist, &cinode->openFileList);
spin_unlock(&cifs_file_list_lock);
- cifs_set_oplock_level(pCifsInode, oplock);
- pCifsInode->can_cache_brlcks = pCifsInode->clientCanCacheAll;
+ cifs_set_oplock_level(cinode, oplock);
+ cinode->can_cache_brlcks = cinode->clientCanCacheAll;
- file->private_data = pCifsFile;
- return pCifsFile;
+ file->private_data = cfile;
+ return cfile;
}
static void cifs_del_lock_waiters(struct cifsLockInfo *lock);
@@ -336,7 +336,7 @@
unsigned int xid;
int rc;
xid = get_xid();
- rc = CIFSSMBClose(xid, tcon, cifs_file->netfid);
+ rc = CIFSSMBClose(xid, tcon, cifs_file->fid.netfid);
free_xid(xid);
}
@@ -561,7 +561,7 @@
}
reopen_success:
- pCifsFile->netfid = netfid;
+ pCifsFile->fid.netfid = netfid;
pCifsFile->invalidHandle = false;
mutex_unlock(&pCifsFile->fh_mutex);
pCifsInode = CIFS_I(inode);
@@ -609,39 +609,37 @@
{
int rc = 0;
unsigned int xid;
- struct cifsFileInfo *pCFileStruct = file->private_data;
- char *ptmp;
+ struct cifsFileInfo *cfile = file->private_data;
+ char *tmp;
cFYI(1, "Closedir inode = 0x%p", inode);
xid = get_xid();
- if (pCFileStruct) {
- struct cifs_tcon *pTcon = tlink_tcon(pCFileStruct->tlink);
+ if (cfile) {
+ struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
cFYI(1, "Freeing private data in close dir");
spin_lock(&cifs_file_list_lock);
- if (!pCFileStruct->srch_inf.endOfSearch &&
- !pCFileStruct->invalidHandle) {
- pCFileStruct->invalidHandle = true;
+ if (!cfile->srch_inf.endOfSearch && !cfile->invalidHandle) {
+ cfile->invalidHandle = true;
spin_unlock(&cifs_file_list_lock);
- rc = CIFSFindClose(xid, pTcon, pCFileStruct->netfid);
- cFYI(1, "Closing uncompleted readdir with rc %d",
- rc);
+ rc = CIFSFindClose(xid, tcon, cfile->fid.netfid);
+ cFYI(1, "Closing uncompleted readdir with rc %d", rc);
/* not much we can do if it fails anyway, ignore rc */
rc = 0;
} else
spin_unlock(&cifs_file_list_lock);
- ptmp = pCFileStruct->srch_inf.ntwrk_buf_start;
- if (ptmp) {
+ tmp = cfile->srch_inf.ntwrk_buf_start;
+ if (tmp) {
cFYI(1, "closedir free smb buf in srch struct");
- pCFileStruct->srch_inf.ntwrk_buf_start = NULL;
- if (pCFileStruct->srch_inf.smallBuf)
- cifs_small_buf_release(ptmp);
+ cfile->srch_inf.ntwrk_buf_start = NULL;
+ if (cfile->srch_inf.smallBuf)
+ cifs_small_buf_release(tmp);
else
- cifs_buf_release(ptmp);
+ cifs_buf_release(tmp);
}
- cifs_put_tlink(pCFileStruct->tlink);
+ cifs_put_tlink(cfile->tlink);
kfree(file->private_data);
file->private_data = NULL;
}
@@ -932,7 +930,8 @@
cur->OffsetLow = cpu_to_le32((u32)li->offset);
cur->OffsetHigh = cpu_to_le32((u32)(li->offset>>32));
if (++num == max_num) {
- stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
+ stored_rc = cifs_lockv(xid, tcon,
+ cfile->fid.netfid,
(__u8)li->type, 0, num,
buf);
if (stored_rc)
@@ -944,7 +943,7 @@
}
if (num) {
- stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
+ stored_rc = cifs_lockv(xid, tcon, cfile->fid.netfid,
(__u8)types[i], 0, num, buf);
if (stored_rc)
rc = stored_rc;
@@ -1038,7 +1037,7 @@
type = CIFS_WRLCK;
lck = list_entry(el, struct lock_to_push, llist);
lck->pid = flock->fl_pid;
- lck->netfid = cfile->netfid;
+ lck->netfid = cfile->fid.netfid;
lck->length = length;
lck->type = type;
lck->offset = flock->fl_start;
@@ -1137,7 +1136,7 @@
cifs_mandatory_lock(unsigned int xid, struct cifsFileInfo *cfile, __u64 offset,
__u64 length, __u32 type, int lock, int unlock, bool wait)
{
- return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->netfid,
+ return CIFSSMBLock(xid, tlink_tcon(cfile->tlink), cfile->fid.netfid,
current->tgid, length, offset, unlock, lock,
(__u8)type, wait, 0);
}
@@ -1151,7 +1150,7 @@
struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
struct TCP_Server_Info *server = tcon->ses->server;
- __u16 netfid = cfile->netfid;
+ __u16 netfid = cfile->fid.netfid;
if (posix_lck) {
int posix_lock_type;
@@ -1295,7 +1294,8 @@
*/
list_move(&li->llist, &tmp_llist);
if (++num == max_num) {
- stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
+ stored_rc = cifs_lockv(xid, tcon,
+ cfile->fid.netfid,
li->type, num, 0, buf);
if (stored_rc) {
/*
@@ -1318,7 +1318,7 @@
cur++;
}
if (num) {
- stored_rc = cifs_lockv(xid, tcon, cfile->netfid,
+ stored_rc = cifs_lockv(xid, tcon, cfile->fid.netfid,
types[i], num, 0, buf);
if (stored_rc) {
cifs_move_llist(&tmp_llist, &cfile->llist);
@@ -1343,7 +1343,7 @@
struct cifsFileInfo *cfile = (struct cifsFileInfo *)file->private_data;
struct cifs_tcon *tcon = tlink_tcon(cfile->tlink);
struct TCP_Server_Info *server = tcon->ses->server;
- __u16 netfid = cfile->netfid;
+ __u16 netfid = cfile->fid.netfid;
if (posix_lck) {
int posix_lock_type;
@@ -1423,7 +1423,7 @@
tcon->ses->server);
cifs_sb = CIFS_SB(file->f_path.dentry->d_sb);
- netfid = cfile->netfid;
+ netfid = cfile->fid.netfid;
cinode = CIFS_I(file->f_path.dentry->d_inode);
if (cap_unix(tcon->ses) &&
@@ -1514,7 +1514,7 @@
/* iov[0] is reserved for smb header */
iov[1].iov_base = (char *)write_data + total_written;
iov[1].iov_len = len;
- io_parms.netfid = open_file->netfid;
+ io_parms.netfid = open_file->fid.netfid;
io_parms.pid = pid;
io_parms.tcon = pTcon;
io_parms.offset = *poffset;
@@ -2078,7 +2078,7 @@
tcon = tlink_tcon(smbfile->tlink);
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
- rc = CIFSSMBFlush(xid, tcon, smbfile->netfid);
+ rc = CIFSSMBFlush(xid, tcon, smbfile->fid.netfid);
free_xid(xid);
mutex_unlock(&inode->i_mutex);
@@ -2106,7 +2106,7 @@
tcon = tlink_tcon(smbfile->tlink);
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NOSSYNC))
- rc = CIFSSMBFlush(xid, tcon, smbfile->netfid);
+ rc = CIFSSMBFlush(xid, tcon, smbfile->fid.netfid);
free_xid(xid);
mutex_unlock(&inode->i_mutex);
@@ -2802,7 +2802,7 @@
if (rc != 0)
break;
}
- io_parms.netfid = open_file->netfid;
+ io_parms.netfid = open_file->fid.netfid;
io_parms.pid = pid;
io_parms.tcon = tcon;
io_parms.offset = *poffset;
@@ -3374,7 +3374,7 @@
* disconnected since oplock already released by the server
*/
if (!cfile->oplock_break_cancelled) {
- rc = CIFSSMBLock(0, tlink_tcon(cfile->tlink), cfile->netfid,
+ rc = CIFSSMBLock(0, tlink_tcon(cfile->tlink), cfile->fid.netfid,
current->tgid, 0, 0, 0, 0,
LOCKING_ANDX_OPLOCK_RELEASE, false,
cinode->clientCanCacheRead ? 1 : 0);