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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:
 "Four cifs fixes (including for kernel bug #53221 and samba bug #9519)"

* 'for-next' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: bugfix for unreclaimed writeback pages in cifs_writev_requeue()
  cifs: set MAY_SIGN when sec=krb5
  POSIX extensions disabled on client due to illegal O_EXCL flag sent to Samba
  cifs: ensure that cifs_get_root() only traverses directories
This commit is contained in:
Linus Torvalds 2013-03-01 12:05:13 -08:00
commit cc73dc04c7
4 changed files with 19 additions and 5 deletions
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5
fs/cifs/cifsfs.c
View File

@ -564,6 +564,11 @@ cifs_get_root(struct smb_vol *vol, struct super_block *sb)
dentry = ERR_PTR(-ENOENT);
break;
}
if (!S_ISDIR(dir->i_mode)) {
dput(dentry);
dentry = ERR_PTR(-ENOTDIR);
break;
}
/* skip separators */
while (*s == sep)

5
fs/cifs/cifssmb.c
View File

@ -1909,8 +1909,11 @@ cifs_writev_requeue(struct cifs_writedata *wdata)
} while (rc == -EAGAIN);
for (i = 0; i < wdata->nr_pages; i++) {
if (rc != 0)
if (rc != 0) {
SetPageError(wdata->pages[i]);
end_page_writeback(wdata->pages[i]);
page_cache_release(wdata->pages[i]);
}
unlock_page(wdata->pages[i]);
}

2
fs/cifs/connect.c
View File

@ -1031,7 +1031,7 @@ static int cifs_parse_security_flavors(char *value,
switch (match_token(value, cifs_secflavor_tokens, args)) {
case Opt_sec_krb5:
vol->secFlg |= CIFSSEC_MAY_KRB5;
vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MAY_SIGN;
break;
case Opt_sec_krb5i:
vol->secFlg |= CIFSSEC_MAY_KRB5 | CIFSSEC_MUST_SIGN;

12
fs/cifs/file.c
View File

@ -43,6 +43,7 @@
#include "cifs_fs_sb.h"
#include "fscache.h"
static inline int cifs_convert_flags(unsigned int flags)
{
if ((flags & O_ACCMODE) == O_RDONLY)
@ -72,10 +73,15 @@ static u32 cifs_posix_convert_flags(unsigned int flags)
else if ((flags & O_ACCMODE) == O_RDWR)
posix_flags = SMB_O_RDWR;
if (flags & O_CREAT)
if (flags & O_CREAT) {
posix_flags |= SMB_O_CREAT;
if (flags & O_EXCL)
posix_flags |= SMB_O_EXCL;
if (flags & O_EXCL)
posix_flags |= SMB_O_EXCL;
} else if (flags & O_EXCL)
cFYI(1, "Application %s pid %d has incorrectly set O_EXCL flag"
"but not O_CREAT on file open. Ignoring O_EXCL",
current->comm, current->tgid);
if (flags & O_TRUNC)
posix_flags |= SMB_O_TRUNC;
/* be safe and imply O_SYNC for O_DSYNC */