#include "cifs_debug.h"
#include "cifs_fs_sb.h"
+
+static void cifs_set_ops(struct inode *inode)
+{
+ struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
+ inode->i_op = &cifs_file_inode_ops;
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop = &cifs_file_direct_nobrl_ops;
+ else
+ inode->i_fop = &cifs_file_direct_ops;
+ } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
+ inode->i_fop = &cifs_file_nobrl_ops;
+ else { /* not direct, send byte range locks */
+ inode->i_fop = &cifs_file_ops;
+ }
+
+
+ /* check if server can support readpages */
+ if (cifs_sb->tcon->ses->server->maxBuf <
+ PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
+ inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
+ else
+ 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;
+ break;
+ case S_IFLNK:
+ inode->i_op = &cifs_symlink_inode_ops;
+ break;
+ default:
+ init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ break;
+ }
+}
+
int cifs_get_inode_info_unix(struct inode **pinode,
const unsigned char *search_path, struct super_block *sb, int xid)
{
MAX_TREE_SIZE + 1) +
strnlen(search_path, MAX_PATHCONF) + 1,
GFP_KERNEL);
- if (tmp_path == NULL) {
+ 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);
cFYI(1, ("Size %ld and blocks %llu",
(unsigned long) inode->i_size,
(unsigned long long)inode->i_blocks));
- if (S_ISREG(inode->i_mode)) {
- cFYI(1, ("File inode"));
- inode->i_op = &cifs_file_inode_ops;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop =
- &cifs_file_direct_nobrl_ops;
- else
- inode->i_fop = &cifs_file_direct_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop = &cifs_file_nobrl_ops;
- else /* not direct, send byte range locks */
- inode->i_fop = &cifs_file_ops;
-
- /* check if server can support readpages */
- if (pTcon->ses->server->maxBuf <
- PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
- inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
- else
- inode->i_data.a_ops = &cifs_addr_ops;
- } else if (S_ISDIR(inode->i_mode)) {
- cFYI(1, ("Directory inode"));
- inode->i_op = &cifs_dir_inode_ops;
- inode->i_fop = &cifs_dir_ops;
- } else if (S_ISLNK(inode->i_mode)) {
- cFYI(1, ("Symbolic Link inode"));
- inode->i_op = &cifs_symlink_inode_ops;
- /* tmp_inode->i_fop = */ /* do not need to set to anything */
- } else {
- cFYI(1, ("Init special inode"));
- init_special_inode(inode, inode->i_mode,
- inode->i_rdev);
- }
+
+ cifs_set_ops(inode);
}
return rc;
}
if (decode_sfu_inode(inode,
le64_to_cpu(pfindData->EndOfFile),
search_path,
- cifs_sb, xid)) {
+ cifs_sb, xid))
cFYI(1, ("Unrecognized sfu inode type"));
- }
+
cFYI(1, ("sfu mode 0%o", inode->i_mode));
} else {
inode->i_mode |= S_IFREG;
}
spin_lock(&inode->i_lock);
- if (is_size_safe_to_change(cifsInfo, le64_to_cpu(pfindData->EndOfFile))) {
+ if (is_size_safe_to_change(cifsInfo,
+ le64_to_cpu(pfindData->EndOfFile))) {
/* can not safely shrink the file size here if the
client is writing to it due to potential races */
i_size_write(inode, le64_to_cpu(pfindData->EndOfFile));
atomic_set(&cifsInfo->inUse, 1);
}
- if (S_ISREG(inode->i_mode)) {
- cFYI(1, ("File inode"));
- inode->i_op = &cifs_file_inode_ops;
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DIRECT_IO) {
- if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop =
- &cifs_file_direct_nobrl_ops;
- else
- inode->i_fop = &cifs_file_direct_ops;
- } else if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_BRL)
- inode->i_fop = &cifs_file_nobrl_ops;
- else /* not direct, send byte range locks */
- inode->i_fop = &cifs_file_ops;
-
- if (pTcon->ses->server->maxBuf <
- PAGE_CACHE_SIZE + MAX_CIFS_HDR_SIZE)
- inode->i_data.a_ops = &cifs_addr_ops_smallbuf;
- else
- inode->i_data.a_ops = &cifs_addr_ops;
- } else if (S_ISDIR(inode->i_mode)) {
- cFYI(1, ("Directory inode"));
- inode->i_op = &cifs_dir_inode_ops;
- inode->i_fop = &cifs_dir_ops;
- } else if (S_ISLNK(inode->i_mode)) {
- cFYI(1, ("Symbolic Link inode"));
- inode->i_op = &cifs_symlink_inode_ops;
- } else {
- init_special_inode(inode, inode->i_mode,
- inode->i_rdev);
- }
+ cifs_set_ops(inode);
}
kfree(buf);
return rc;
cFYI(1, ("unknown inode type %d", type));
}
-#ifdef CONFIG_CIFS_DEBUG2
- cFYI(1, ("object type: %d", type));
-#endif
+ cFYI(DBG2, ("object type: %d", type));
tmp_inode->i_uid = le64_to_cpu(pData->Uid);
tmp_inode->i_gid = le64_to_cpu(pData->Gid);
tmp_inode->i_nlink = le64_to_cpu(pData->Nlinks);
(CIFS_UNIX_POSIX_PATH_OPS_CAP &
le64_to_cpu(pTcon->fsUnixInfo.Capability))) {
u32 oplock = 0;
- FILE_UNIX_BASIC_INFO * pInfo =
+ FILE_UNIX_BASIC_INFO *pInfo =
kzalloc(sizeof(FILE_UNIX_BASIC_INFO), GFP_KERNEL);
if (pInfo == NULL) {
rc = -ENOMEM;
} /* if we can not get memory just leave rc as EEXIST */
}
- if (rc) {
+ if (rc)
cFYI(1, ("rename rc %d", rc));
- }
if ((rc == -EIO) || (rc == -EEXIST)) {
int oplock = FALSE;
int cifs_revalidate(struct dentry *direntry)
{
int xid;
- int rc = 0;
+ int rc = 0, wbrc = 0;
char *full_path;
struct cifs_sb_info *cifs_sb;
struct cifsInodeInfo *cifsInode;
if (direntry->d_inode->i_mapping) {
/* do we need to lock inode until after invalidate completes
below? */
- filemap_fdatawrite(direntry->d_inode->i_mapping);
+ wbrc = filemap_fdatawrite(direntry->d_inode->i_mapping);
+ if (wbrc)
+ CIFS_I(direntry->d_inode)->write_behind_rc = wbrc;
}
if (invalidate_inode) {
/* shrink_dcache not necessary now that cifs dentry ops
shrink_dcache_parent(direntry); */
if (S_ISREG(direntry->d_inode->i_mode)) {
if (direntry->d_inode->i_mapping)
- filemap_fdatawait(direntry->d_inode->i_mapping);
+ wbrc = filemap_fdatawait(direntry->d_inode->i_mapping);
+ if (wbrc)
+ CIFS_I(direntry->d_inode)->write_behind_rc = wbrc;
/* may eventually have to do this for open files too */
if (list_empty(&(cifsInode->openFileList))) {
/* changed on server - flush read ahead pages */
if (!page)
return -ENOMEM;
- zero_user_page(page, offset, PAGE_CACHE_SIZE - offset, KM_USER0);
+ zero_user_segment(page, offset, PAGE_CACHE_SIZE);
unlock_page(page);
page_cache_release(page);
return rc;
/* BB check if we need to refresh inode from server now ? BB */
- /* need to flush data before changing file size on server */
- filemap_write_and_wait(direntry->d_inode->i_mapping);
-
if (attrs->ia_valid & ATTR_SIZE) {
+ /*
+ Flush data before changing file size on 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
+ the flush returns error?
+ */
+ rc = filemap_write_and_wait(direntry->d_inode->i_mapping);
+ if (rc != 0) {
+ CIFS_I(direntry->d_inode)->write_behind_rc = rc;
+ rc = 0;
+ }
+
/* 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.
CIFS_MOUNT_MAP_SPECIAL_CHR);
else if (attrs->ia_valid & ATTR_MODE) {
rc = 0;
- if ((mode & S_IWUGO) == 0) /* not writeable */ {
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ rc = mode_to_acl(direntry->d_inode, full_path, mode);
+ else if ((mode & S_IWUGO) == 0) {
+#else
+ if ((mode & S_IWUGO) == 0) {
+#endif
+ /* not writeable */
if ((cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
set_dosattr = TRUE;
time_buf.Attributes =
if (time_buf.Attributes == 0)
time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL);
}
- /* BB to be implemented -
- via Windows security descriptors or streams */
- /* CIFSSMBWinSetPerms(xid, pTcon, full_path, mode, uid, gid,
- cifs_sb->local_nls); */
+#ifdef CONFIG_CIFS_EXPERIMENTAL
+ if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
+ mode_to_acl(direntry->d_inode, full_path, mode);
+#endif
}
if (attrs->ia_valid & ATTR_ATIME) {
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