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Merge git://git.samba.org/sfrench/cifs-2.6

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Pull CIFS fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  Fix UNC parsing on mount
  Remove unnecessary check for NULL in password parser
  CIFS: Fix VFS lock usage for oplocked files
  Revert "CIFS: Fix VFS lock usage for oplocked files"
  cifs: writing past end of struct in cifs_convert_address()
  cifs: silence compiler warnings showing up with gcc-4.7.0
  CIFS: Fix VFS lock usage for oplocked files
This commit is contained in:
Linus Torvalds 2012-04-04 18:37:09 -07:00
parent 6c216ec636 e4b41fb9da
commit 43f63c8711
6 changed files with 37 additions and 25 deletions
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24
fs/cifs/cifssmb.c
View file

@ -3892,13 +3892,12 @@ CIFSSMBSetCIFSACL(const int xid, struct cifs_tcon *tcon, __u16 fid,
int rc = 0;
int bytes_returned = 0;
SET_SEC_DESC_REQ *pSMB = NULL;
NTRANSACT_RSP *pSMBr = NULL;
void *pSMBr;
setCifsAclRetry:
rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB,
(void **) &pSMBr);
rc = smb_init(SMB_COM_NT_TRANSACT, 19, tcon, (void **) &pSMB, &pSMBr);
if (rc)
return (rc);
return rc;
pSMB->MaxSetupCount = 0;
pSMB->Reserved = 0;
@ -3926,9 +3925,8 @@ setCifsAclRetry:
pSMB->AclFlags = cpu_to_le32(aclflag);
if (pntsd && acllen) {
memcpy((char *) &pSMBr->hdr.Protocol + data_offset,
(char *) pntsd,
acllen);
memcpy((char *)pSMBr + offsetof(struct smb_hdr, Protocol) +
data_offset, pntsd, acllen);
inc_rfc1001_len(pSMB, byte_count + data_count);
} else
inc_rfc1001_len(pSMB, byte_count);
@ -5708,7 +5706,8 @@ CIFSSMBSetFileInfo(const int xid, struct cifs_tcon *tcon,
param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
offset = param_offset + params;
data_offset = (char *) (&pSMB->hdr.Protocol) + offset;
data_offset = (char *)pSMB +
offsetof(struct smb_hdr, Protocol) + offset;
count = sizeof(FILE_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
@ -5977,7 +5976,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
u16 fid, u32 pid_of_opener)
{
struct smb_com_transaction2_sfi_req *pSMB = NULL;
FILE_UNIX_BASIC_INFO *data_offset;
char *data_offset;
int rc = 0;
u16 params, param_offset, offset, byte_count, count;
@ -5999,8 +5998,9 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
param_offset = offsetof(struct smb_com_transaction2_sfi_req, Fid) - 4;
offset = param_offset + params;
data_offset = (FILE_UNIX_BASIC_INFO *)
((char *)(&pSMB->hdr.Protocol) + offset);
data_offset = (char *)pSMB +
offsetof(struct smb_hdr, Protocol) + offset;
count = sizeof(FILE_UNIX_BASIC_INFO);
pSMB->MaxParameterCount = cpu_to_le16(2);
@ -6022,7 +6022,7 @@ CIFSSMBUnixSetFileInfo(const int xid, struct cifs_tcon *tcon,
inc_rfc1001_len(pSMB, byte_count);
pSMB->ByteCount = cpu_to_le16(byte_count);
cifs_fill_unix_set_info(data_offset, args);
cifs_fill_unix_set_info((FILE_UNIX_BASIC_INFO *)data_offset, args);
rc = SendReceiveNoRsp(xid, tcon->ses, (char *) pSMB, 0);
if (rc)

17
fs/cifs/connect.c
View file

@ -1565,8 +1565,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
/* Obtain the value string */
value = strchr(data, '=');
if (value != NULL)
*value++ = '\0';
value++;
/* Set tmp_end to end of the string */
tmp_end = (char *) value + strlen(value);
@ -1649,6 +1648,13 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
vol->UNC = kmalloc(temp_len+1, GFP_KERNEL);
if (vol->UNC == NULL) {
printk(KERN_WARNING "CIFS: no memory for UNC\n");
goto cifs_parse_mount_err;
}
strcpy(vol->UNC, string);
if (strncmp(string, "//", 2) == 0) {
vol->UNC[0] = '\\';
vol->UNC[1] = '\\';
@ -1658,13 +1664,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
goto cifs_parse_mount_err;
}
vol->UNC = kmalloc(temp_len+1, GFP_KERNEL);
if (vol->UNC == NULL) {
printk(KERN_WARNING "CIFS: no memory "
"for UNC\n");
goto cifs_parse_mount_err;
}
strcpy(vol->UNC, string);
break;
case Opt_domain:
string = match_strdup(args);

10
fs/cifs/file.c
View file

@ -835,13 +835,21 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock)
if ((flock->fl_flags & FL_POSIX) == 0)
return rc;
try_again:
mutex_lock(&cinode->lock_mutex);
if (!cinode->can_cache_brlcks) {
mutex_unlock(&cinode->lock_mutex);
return rc;
}
rc = posix_lock_file_wait(file, flock);
rc = posix_lock_file(file, flock, NULL);
mutex_unlock(&cinode->lock_mutex);
if (rc == FILE_LOCK_DEFERRED) {
rc = wait_event_interruptible(flock->fl_wait, !flock->fl_next);
if (!rc)
goto try_again;
locks_delete_block(flock);
}
return rc;
}

3
fs/cifs/netmisc.c
View file

@ -197,8 +197,7 @@ cifs_convert_address(struct sockaddr *dst, const char *src, int len)
memcpy(scope_id, pct + 1, slen);
scope_id[slen] = '\0';
rc = strict_strtoul(scope_id, 0,
(unsigned long *)&s6->sin6_scope_id);
rc = kstrtouint(scope_id, 0, &s6->sin6_scope_id);
rc = (rc == 0) ? 1 : 0;
}

3
fs/locks.c
View file

@ -510,12 +510,13 @@ static void __locks_delete_block(struct file_lock *waiter)
/*
*/
static void locks_delete_block(struct file_lock *waiter)
void locks_delete_block(struct file_lock *waiter)
{
lock_flocks();
__locks_delete_block(waiter);
unlock_flocks();
}
EXPORT_SYMBOL(locks_delete_block);
/* Insert waiter into blocker's block list.
* We use a circular list so that processes can be easily woken up in

5
include/linux/fs.h
View file

@ -1215,6 +1215,7 @@ extern int vfs_setlease(struct file *, long, struct file_lock **);
extern int lease_modify(struct file_lock **, int);
extern int lock_may_read(struct inode *, loff_t start, unsigned long count);
extern int lock_may_write(struct inode *, loff_t start, unsigned long count);
extern void locks_delete_block(struct file_lock *waiter);
extern void lock_flocks(void);
extern void unlock_flocks(void);
#else /* !CONFIG_FILE_LOCKING */
@ -1359,6 +1360,10 @@ static inline int lock_may_write(struct inode *inode, loff_t start,
return 1;
}
static inline void locks_delete_block(struct file_lock *waiter)
{
}
static inline void lock_flocks(void)
{
}