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Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6

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Pull CIFS fixes from Steve French:
 "Small set of misc cifs/smb3 fixes"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] fix mount failure with broken pathnames when smb3 mount with mapchars option
  cifs: revalidate mapping prior to satisfying read_iter request with cache=loose
  fs/cifs: fix regression in cifs_create_mf_symlink()
This commit is contained in:
Linus Torvalds 2014-06-25 21:47:28 -07:00
commit d7933ab727
3 changed files with 20 additions and 6 deletions
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7
fs/cifs/cifs_unicode.c
View File

@ -290,7 +290,8 @@ int
cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
const struct nls_table *cp, int mapChars)
{
int i, j, charlen;
int i, charlen;
int j = 0;
char src_char;
__le16 dst_char;
wchar_t tmp;
@ -298,12 +299,11 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
if (!mapChars)
return cifs_strtoUTF16(target, source, PATH_MAX, cp);
for (i = 0, j = 0; i < srclen; j++) {
for (i = 0; i < srclen; j++) {
src_char = source[i];
charlen = 1;
switch (src_char) {
case 0:
put_unaligned(0, &target[j]);
goto ctoUTF16_out;
case ':':
dst_char = cpu_to_le16(UNI_COLON);
@ -350,6 +350,7 @@ cifsConvertToUTF16(__le16 *target, const char *source, int srclen,
}
ctoUTF16_out:
put_unaligned(0, &target[j]); /* Null terminate target unicode string */
return j;
}

17
fs/cifs/cifsfs.c
View File

@ -725,6 +725,19 @@ cifs_do_mount(struct file_system_type *fs_type,
goto out;
}
static ssize_t
cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
{
ssize_t rc;
struct inode *inode = file_inode(iocb->ki_filp);
rc = cifs_revalidate_mapping(inode);
if (rc)
return rc;
return generic_file_read_iter(iocb, iter);
}
static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
{
struct inode *inode = file_inode(iocb->ki_filp);
@ -881,7 +894,7 @@ const struct inode_operations cifs_symlink_inode_ops = {
const struct file_operations cifs_file_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.read_iter = cifs_loose_read_iter,
.write_iter = cifs_file_write_iter,
.open = cifs_open,
.release = cifs_close,
@ -939,7 +952,7 @@ const struct file_operations cifs_file_direct_ops = {
const struct file_operations cifs_file_nobrl_ops = {
.read = new_sync_read,
.write = new_sync_write,
.read_iter = generic_file_read_iter,
.read_iter = cifs_loose_read_iter,
.write_iter = cifs_file_write_iter,
.open = cifs_open,
.release = cifs_close,

2
fs/cifs/link.c
View File

@ -374,7 +374,7 @@ cifs_create_mf_symlink(unsigned int xid, struct cifs_tcon *tcon,
oparms.cifs_sb = cifs_sb;
oparms.desired_access = GENERIC_WRITE;
oparms.create_options = create_options;
oparms.disposition = FILE_OPEN;
oparms.disposition = FILE_CREATE;
oparms.path = path;
oparms.fid = &fid;
oparms.reconnect = false;