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Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  [CIFS] Fix mem leak on dfs referral
  [CIFS] file create with acl support enabled is slow
  [CIFS] Fix mtime on cp -p when file data cached but written out too late
  [CIFS] Fix build problem
  [CIFS] cifs: replace remaining __FUNCTION__ occurrences
  [CIFS]  DFS patch that connects inode with dfs handling ops
hifive-unleashed-5.1
Linus Torvalds 2008-03-22 17:05:31 -07:00
parent 130eb46535 04b6e6ec1a
commit 0d995b2b44
8 changed files with 130 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
fs/cifs/cifs_dfs_ref.c
View File

@ -74,7 +74,7 @@ static char *cifs_get_share_name(const char *node_name)
pSep = memchr(UNC+2, '\\', len-2);
if (!pSep) {
cERROR(1, ("%s: no server name end in node name: %s",
__FUNCTION__, node_name));
__func__, node_name));
kfree(UNC);
return NULL;
}
@ -84,7 +84,7 @@ static char *cifs_get_share_name(const char *node_name)
pSep = memchr(UNC+(pSep-UNC), '\\', len-(pSep-UNC));
if (!pSep) {
cERROR(1, ("%s:2 cant find share name in node name: %s",
__FUNCTION__, node_name));
__func__, node_name));
kfree(UNC);
return NULL;
}
@ -127,7 +127,7 @@ static char *compose_mount_options(const char *sb_mountdata,
rc = dns_resolve_server_name_to_ip(*devname, &srvIP);
if (rc != 0) {
cERROR(1, ("%s: Failed to resolve server part of %s to IP",
__FUNCTION__, *devname));
__func__, *devname));
mountdata = ERR_PTR(rc);
goto compose_mount_options_out;
}
@ -181,8 +181,8 @@ static char *compose_mount_options(const char *sb_mountdata,
}
}
/*cFYI(1,("%s: parent mountdata: %s", __FUNCTION__,sb_mountdata));*/
/*cFYI(1, ("%s: submount mountdata: %s", __FUNCTION__, mountdata ));*/
/*cFYI(1,("%s: parent mountdata: %s", __func__,sb_mountdata));*/
/*cFYI(1, ("%s: submount mountdata: %s", __func__, mountdata ));*/
compose_mount_options_out:
kfree(srvIP);
@ -302,7 +302,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
int rc = 0;
struct vfsmount *mnt = ERR_PTR(-ENOENT);
cFYI(1, ("in %s", __FUNCTION__));
cFYI(1, ("in %s", __func__));
BUG_ON(IS_ROOT(dentry));
xid = GetXid();
@ -336,7 +336,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
len = strlen(referrals[i].node_name);
if (len < 2) {
cERROR(1, ("%s: Net Address path too short: %s",
__FUNCTION__, referrals[i].node_name));
__func__, referrals[i].node_name));
rc = -EINVAL;
goto out_err;
}
@ -344,7 +344,7 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd)
nd->path.dentry,
referrals[i].node_name);
cFYI(1, ("%s: cifs_dfs_do_refmount:%s , mnt:%p",
__FUNCTION__,
__func__,
referrals[i].node_name, mnt));
/* complete mount procedure if we accured submount */
@ -365,7 +365,7 @@ out:
FreeXid(xid);
free_dfs_info_array(referrals, num_referrals);
kfree(full_path);
cFYI(1, ("leaving %s" , __FUNCTION__));
cFYI(1, ("leaving %s" , __func__));
return ERR_PTR(rc);
out_err:
path_put(&nd->path);

25
fs/cifs/cifsacl.c
View File

@ -1,7 +1,7 @@
/*
* fs/cifs/cifsacl.c
*
* Copyright (C) International Business Machines Corp., 2007
* Copyright (C) International Business Machines Corp., 2007,2008
* Author(s): Steve French (sfrench@us.ibm.com)
*
* Contains the routines for mapping CIFS/NTFS ACLs
@ -556,9 +556,9 @@ static int build_sec_desc(struct cifs_ntsd *pntsd, struct cifs_ntsd *pnntsd,
/* Retrieve an ACL from the server */
static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode,
const char *path)
const char *path, const __u16 *pfid)
{
struct cifsFileInfo *open_file;
struct cifsFileInfo *open_file = NULL;
int unlock_file = FALSE;
int xid;
int rc = -EIO;
@ -573,7 +573,11 @@ static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode,
return NULL;
xid = GetXid();
open_file = find_readable_file(CIFS_I(inode));
if (pfid == NULL)
open_file = find_readable_file(CIFS_I(inode));
else
fid = *pfid;
sb = inode->i_sb;
if (sb == NULL) {
FreeXid(xid);
@ -584,7 +588,7 @@ static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode,
if (open_file) {
unlock_file = TRUE;
fid = open_file->netfid;
} else {
} else if (pfid == NULL) {
int oplock = FALSE;
/* open file */
rc = CIFSSMBOpen(xid, cifs_sb->tcon, path, FILE_OPEN,
@ -600,10 +604,11 @@ static struct cifs_ntsd *get_cifs_acl(u32 *pacllen, struct inode *inode,
rc = CIFSSMBGetCIFSACL(xid, cifs_sb->tcon, fid, &pntsd, pacllen);
cFYI(1, ("GetCIFSACL rc = %d ACL len %d", rc, *pacllen));
if (unlock_file == TRUE)
if (unlock_file == TRUE) /* find_readable_file increments ref count */
atomic_dec(&open_file->wrtPending);
else
else if (pfid == NULL) /* if opened above we have to close the handle */
CIFSSMBClose(xid, cifs_sb->tcon, fid);
/* else handle was passed in by caller */
FreeXid(xid);
return pntsd;
@ -664,14 +669,14 @@ static int set_cifs_acl(struct cifs_ntsd *pnntsd, __u32 acllen,
}
/* Translate the CIFS ACL (simlar to NTFS ACL) for a file into mode bits */
void acl_to_uid_mode(struct inode *inode, const char *path)
void acl_to_uid_mode(struct inode *inode, const char *path, const __u16 *pfid)
{
struct cifs_ntsd *pntsd = NULL;
u32 acllen = 0;
int rc = 0;
cFYI(DBG2, ("converting ACL to mode for %s", path));
pntsd = get_cifs_acl(&acllen, inode, path);
pntsd = get_cifs_acl(&acllen, inode, path, pfid);
/* if we can retrieve the ACL, now parse Access Control Entries, ACEs */
if (pntsd)
@ -694,7 +699,7 @@ int mode_to_acl(struct inode *inode, const char *path, __u64 nmode)
cFYI(DBG2, ("set ACL from mode for %s", path));
/* Get the security descriptor */
pntsd = get_cifs_acl(&acllen, inode, path);
pntsd = get_cifs_acl(&acllen, inode, path, NULL);
/* Add three ACEs for owner, group, everyone getting rid of
other ACEs as chmod disables ACEs and set the security descriptor */

9
fs/cifs/cifsproto.h
View File

@ -39,8 +39,8 @@ extern int smb_send(struct socket *, struct smb_hdr *,
unsigned int /* length */ , struct sockaddr *);
extern unsigned int _GetXid(void);
extern void _FreeXid(unsigned int);
#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__FUNCTION__, xid,current->fsuid));
#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__FUNCTION__,curr_xid,(int)rc));}
#define GetXid() (int)_GetXid(); cFYI(1,("CIFS VFS: in %s as Xid: %d with uid: %d",__func__, xid,current->fsuid));
#define FreeXid(curr_xid) {_FreeXid(curr_xid); cFYI(1,("CIFS VFS: leaving %s (xid = %d) rc = %d",__func__,curr_xid,(int)rc));}
extern char *build_path_from_dentry(struct dentry *);
extern char *build_wildcard_path_from_dentry(struct dentry *direntry);
/* extern void renew_parental_timestamps(struct dentry *direntry);*/
@ -92,11 +92,12 @@ extern struct timespec cnvrtDosUnixTm(__u16 date, __u16 time);
extern int cifs_get_inode_info(struct inode **pinode,
const unsigned char *search_path,
FILE_ALL_INFO * pfile_info,
struct super_block *sb, int xid);
struct super_block *sb, int xid, const __u16 *pfid);
extern int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path,
struct super_block *sb, int xid);
extern void acl_to_uid_mode(struct inode *inode, const char *search_path);
extern void acl_to_uid_mode(struct inode *inode, const char *path,
const __u16 *pfid);
extern int mode_to_acl(struct inode *inode, const char *path, __u64);
extern int cifs_mount(struct super_block *, struct cifs_sb_info *, char *,

5
fs/cifs/dir.c
View File

@ -229,7 +229,8 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
inode->i_sb, xid);
else {
rc = cifs_get_inode_info(&newinode, full_path,
buf, inode->i_sb, xid);
buf, inode->i_sb, xid,
&fileHandle);
if (newinode) {
newinode->i_mode = mode;
if ((oplock & CIFS_CREATE_ACTION) &&
@ -483,7 +484,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
parent_dir_inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newInode, full_path, NULL,
parent_dir_inode->i_sb, xid);
parent_dir_inode->i_sb, xid, NULL);
if ((rc == 0) && (newInode != NULL)) {
if (pTcon->nocase)

8
fs/cifs/dns_resolve.c
View File

@ -77,14 +77,14 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
/* search for server name delimiter */
len = strlen(unc);
if (len < 3) {
cFYI(1, ("%s: unc is too short: %s", __FUNCTION__, unc));
cFYI(1, ("%s: unc is too short: %s", __func__, unc));
return -EINVAL;
}
len -= 2;
name = memchr(unc+2, '\\', len);
if (!name) {
cFYI(1, ("%s: probably server name is whole unc: %s",
__FUNCTION__, unc));
__func__, unc));
} else {
len = (name - unc) - 2/* leading // */;
}
@ -104,7 +104,7 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
if (*ip_addr) {
memcpy(*ip_addr, rkey->payload.data, len);
(*ip_addr)[len] = '\0';
cFYI(1, ("%s: resolved: %s to %s", __FUNCTION__,
cFYI(1, ("%s: resolved: %s to %s", __func__,
rkey->description,
*ip_addr
));
@ -114,7 +114,7 @@ dns_resolve_server_name_to_ip(const char *unc, char **ip_addr)
}
key_put(rkey);
} else {
cERROR(1, ("%s: unable to resolve: %s", __FUNCTION__, name));
cERROR(1, ("%s: unable to resolve: %s", __func__, name));
}
kfree(name);

4
fs/cifs/file.c
View File

@ -145,7 +145,7 @@ client_can_cache:
full_path, inode->i_sb, xid);
else
rc = cifs_get_inode_info(&file->f_path.dentry->d_inode,
full_path, buf, inode->i_sb, xid);
full_path, buf, inode->i_sb, xid, NULL);
if ((*oplock & 0xF) == OPLOCK_EXCLUSIVE) {
pCifsInode->clientCanCacheAll = TRUE;
@ -440,7 +440,7 @@ reopen_error_exit:
else
rc = cifs_get_inode_info(&inode,
full_path, NULL, inode->i_sb,
xid);
xid, NULL);
} /* else we are writing out data to server already
and could deadlock if we tried to flush data, and
since we do not know if we have data that would

161
fs/cifs/inode.c
View File

@ -30,7 +30,7 @@
#include "cifs_fs_sb.h"
static void cifs_set_ops(struct inode *inode)
static void cifs_set_ops(struct inode *inode, const bool is_dfs_referral)
{
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
@ -57,8 +57,16 @@ static void cifs_set_ops(struct inode *inode)
inode->i_data.a_ops = &cifs_addr_ops;
break;
case S_IFDIR:
inode->i_op = &cifs_dir_inode_ops;
inode->i_fop = &cifs_dir_ops;
#ifdef CONFIG_CIFS_DFS_UPCALL
if (is_dfs_referral) {
inode->i_op = &cifs_dfs_referral_inode_operations;
} else {
#else /* NO DFS support, treat as a directory */
{
#endif
inode->i_op = &cifs_dir_inode_ops;
inode->i_fop = &cifs_dir_ops;
}
break;
case S_IFLNK:
inode->i_op = &cifs_symlink_inode_ops;
@ -153,6 +161,30 @@ static void cifs_unix_info_to_inode(struct inode *inode,
spin_unlock(&inode->i_lock);
}
static const unsigned char *cifs_get_search_path(struct cifsTconInfo *pTcon,
const char *search_path)
{
int tree_len;
int path_len;
char *tmp_path;
if (!(pTcon->Flags & SMB_SHARE_IS_IN_DFS))
return search_path;
/* use full path name for working with DFS */
tree_len = strnlen(pTcon->treeName, MAX_TREE_SIZE + 1);
path_len = strnlen(search_path, MAX_PATHCONF);
tmp_path = kmalloc(tree_len+path_len+1, GFP_KERNEL);
if (tmp_path == NULL)
return search_path;
strncpy(tmp_path, pTcon->treeName, tree_len);
strncpy(tmp_path+tree_len, search_path, path_len);
tmp_path[tree_len+path_len] = 0;
return tmp_path;
}
int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path, struct super_block *sb, int xid)
{
@ -161,41 +193,31 @@ int cifs_get_inode_info_unix(struct inode **pinode,
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
char *tmp_path;
const unsigned char *full_path;
bool is_dfs_referral = false;
pTcon = cifs_sb->tcon;
cFYI(1, ("Getting info on %s", search_path));
full_path = cifs_get_search_path(pTcon, search_path);
try_again_CIFSSMBUnixQPathInfo:
/* could have done a find first instead but this returns more info */
rc = CIFSSMBUnixQPathInfo(xid, pTcon, search_path, &findData,
rc = CIFSSMBUnixQPathInfo(xid, pTcon, full_path, &findData,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
/* dump_mem("\nUnixQPathInfo return data", &findData,
sizeof(findData)); */
if (rc) {
if (rc == -EREMOTE) {
tmp_path =
kmalloc(strnlen(pTcon->treeName,
MAX_TREE_SIZE + 1) +
strnlen(search_path, MAX_PATHCONF) + 1,
GFP_KERNEL);
if (tmp_path == NULL)
return -ENOMEM;
/* have to skip first of the double backslash of
UNC name */
strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE);
strncat(tmp_path, search_path, MAX_PATHCONF);
rc = connect_to_dfs_path(xid, pTcon->ses,
/* treename + */ tmp_path,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(tmp_path);
/* BB fix up inode etc. */
} else if (rc) {
return rc;
if (rc == -EREMOTE && !is_dfs_referral) {
is_dfs_referral = true;
if (full_path != search_path) {
kfree(full_path);
full_path = search_path;
}
goto try_again_CIFSSMBUnixQPathInfo;
}
goto cgiiu_exit;
} else {
struct cifsInodeInfo *cifsInfo;
__u64 num_of_bytes = le64_to_cpu(findData.NumOfBytes);
@ -204,8 +226,10 @@ int cifs_get_inode_info_unix(struct inode **pinode,
/* get new inode */
if (*pinode == NULL) {
*pinode = new_inode(sb);
if (*pinode == NULL)
return -ENOMEM;
if (*pinode == NULL) {
rc = -ENOMEM;
goto cgiiu_exit;
}
/* Is an i_ino of zero legal? */
/* Are there sanity checks we can use to ensure that
the server is really filling in that field? */
@ -237,8 +261,11 @@ int cifs_get_inode_info_unix(struct inode **pinode,
(unsigned long) inode->i_size,
(unsigned long long)inode->i_blocks));
cifs_set_ops(inode);
cifs_set_ops(inode, is_dfs_referral);
}
cgiiu_exit:
if (full_path != search_path)
kfree(full_path);
return rc;
}
@ -347,15 +374,16 @@ static int get_sfu_mode(struct inode *inode,
int cifs_get_inode_info(struct inode **pinode,
const unsigned char *search_path, FILE_ALL_INFO *pfindData,
struct super_block *sb, int xid)
struct super_block *sb, int xid, const __u16 *pfid)
{
int rc = 0;
struct cifsTconInfo *pTcon;
struct inode *inode;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
char *tmp_path;
const unsigned char *full_path = NULL;
char *buf = NULL;
int adjustTZ = FALSE;
bool is_dfs_referral = false;
pTcon = cifs_sb->tcon;
cFYI(1, ("Getting info on %s", search_path));
@ -373,8 +401,12 @@ int cifs_get_inode_info(struct inode **pinode,
if (buf == NULL)
return -ENOMEM;
pfindData = (FILE_ALL_INFO *)buf;
full_path = cifs_get_search_path(pTcon, search_path);
try_again_CIFSSMBQPathInfo:
/* could do find first instead but this returns more info */
rc = CIFSSMBQPathInfo(xid, pTcon, search_path, pfindData,
rc = CIFSSMBQPathInfo(xid, pTcon, full_path, pfindData,
0 /* not legacy */,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
@ -382,7 +414,7 @@ int cifs_get_inode_info(struct inode **pinode,
when server claims no NT SMB support and the above call
failed at least once - set flag in tcon or mount */
if ((rc == -EOPNOTSUPP) || (rc == -EINVAL)) {
rc = SMBQueryInformation(xid, pTcon, search_path,
rc = SMBQueryInformation(xid, pTcon, full_path,
pfindData, cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
@ -391,31 +423,15 @@ int cifs_get_inode_info(struct inode **pinode,
}
/* dump_mem("\nQPathInfo return data",&findData, sizeof(findData)); */
if (rc) {
if (rc == -EREMOTE) {
tmp_path =
kmalloc(strnlen
(pTcon->treeName,
MAX_TREE_SIZE + 1) +
strnlen(search_path, MAX_PATHCONF) + 1,
GFP_KERNEL);
if (tmp_path == NULL) {
kfree(buf);
return -ENOMEM;
if (rc == -EREMOTE && !is_dfs_referral) {
is_dfs_referral = true;
if (full_path != search_path) {
kfree(full_path);
full_path = search_path;
}
strncpy(tmp_path, pTcon->treeName, MAX_TREE_SIZE);
strncat(tmp_path, search_path, MAX_PATHCONF);
rc = connect_to_dfs_path(xid, pTcon->ses,
/* treename + */ tmp_path,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
kfree(tmp_path);
/* BB fix up inode etc. */
} else if (rc) {
kfree(buf);
return rc;
goto try_again_CIFSSMBQPathInfo;
}
goto cgii_exit;
} else {
struct cifsInodeInfo *cifsInfo;
__u32 attr = le32_to_cpu(pfindData->Attributes);
@ -424,8 +440,8 @@ int cifs_get_inode_info(struct inode **pinode,
if (*pinode == NULL) {
*pinode = new_inode(sb);
if (*pinode == NULL) {
kfree(buf);
return -ENOMEM;
rc = -ENOMEM;
goto cgii_exit;
}
/* Is an i_ino of zero legal? Can we use that to check
if the server supports returning inode numbers? Are
@ -559,7 +575,7 @@ int cifs_get_inode_info(struct inode **pinode,
/* fill in 0777 bits from ACL */
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) {
cFYI(1, ("Getting mode bits from ACL"));
acl_to_uid_mode(inode, search_path);
acl_to_uid_mode(inode, search_path, pfid);
}
#endif
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_UNX_EMUL) {
@ -573,8 +589,11 @@ int cifs_get_inode_info(struct inode **pinode,
atomic_set(&cifsInfo->inUse, 1);
}
cifs_set_ops(inode);
cifs_set_ops(inode, is_dfs_referral);
}
cgii_exit:
if (full_path != search_path)
kfree(full_path);
kfree(buf);
return rc;
}
@ -603,7 +622,8 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
if (cifs_sb->tcon->unix_ext)
rc = cifs_get_inode_info_unix(&inode, "", inode->i_sb, xid);
else
rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid);
rc = cifs_get_inode_info(&inode, "", NULL, inode->i_sb, xid,
NULL);
if (rc && cifs_sb->tcon->ipc) {
cFYI(1, ("ipc connection - fake read inode"));
inode->i_mode |= S_IFDIR;
@ -804,7 +824,7 @@ static void posix_fill_in_inode(struct inode *tmp_inode,
local_size = tmp_inode->i_size;
cifs_unix_info_to_inode(tmp_inode, pData, 1);
cifs_set_ops(tmp_inode);
cifs_set_ops(tmp_inode, false);
if (!S_ISREG(tmp_inode->i_mode))
return;
@ -936,7 +956,7 @@ mkdir_get_info:
inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newinode, full_path, NULL,
inode->i_sb, xid);
inode->i_sb, xid, NULL);
if (pTcon->nocase)
direntry->d_op = &cifs_ci_dentry_ops;
@ -1218,7 +1238,7 @@ int cifs_revalidate(struct dentry *direntry)
}
} else {
rc = cifs_get_inode_info(&direntry->d_inode, full_path, NULL,
direntry->d_sb, xid);
direntry->d_sb, xid, NULL);
if (rc) {
cFYI(1, ("error on getting revalidate info %d", rc));
/* if (rc != -ENOENT)
@ -1407,11 +1427,10 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
}
cifsInode = CIFS_I(direntry->d_inode);
/* BB check if we need to refresh inode from server now ? BB */
if (attrs->ia_valid & ATTR_SIZE) {
if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) {
/*
Flush data before changing file size on server. If the
Flush data before changing file size or changing the last
write time of the file on the server. If the
flush returns error, store it to report later and continue.
BB: This should be smarter. Why bother flushing pages that
will be truncated anyway? Also, should we error out here if
@ -1422,7 +1441,9 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
CIFS_I(direntry->d_inode)->write_behind_rc = rc;
rc = 0;
}
}
if (attrs->ia_valid & ATTR_SIZE) {
/* To avoid spurious oplock breaks from server, in the case of
inodes that we already have open, avoid doing path based
setting of file size if we can do it by handle.

2
fs/cifs/link.c
View File

@ -205,7 +205,7 @@ cifs_symlink(struct inode *inode, struct dentry *direntry, const char *symname)
inode->i_sb, xid);
else
rc = cifs_get_inode_info(&newinode, full_path, NULL,
inode->i_sb, xid);
inode->i_sb, xid, NULL);
if (rc != 0) {
cFYI(1, ("Create symlink ok, getinodeinfo fail rc = %d",