3 cifs/smb3 fixes, including two for stable, and a fix for an fallocate problem noticed by Clang

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Merge tag '5.14-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French:
 "Three cifs/smb3 fixes, including two for stable, and a fix for an
  fallocate problem noticed by Clang"

* tag '5.14-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: add missing parsing of backupuid
  smb3: rc uninitialized in one fallocate path
  SMB3: fix readpage for large swap cache
This commit is contained in:
Linus Torvalds 2021-07-31 09:25:12 -07:00
commit f3438b4c4e
3 changed files with 10 additions and 2 deletions

View File

@ -4619,7 +4619,7 @@ read_complete:
static int cifs_readpage(struct file *file, struct page *page)
{
loff_t offset = (loff_t)page->index << PAGE_SHIFT;
loff_t offset = page_file_offset(page);
int rc = -EACCES;
unsigned int xid;

View File

@ -925,6 +925,13 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
ctx->cred_uid = uid;
ctx->cruid_specified = true;
break;
case Opt_backupuid:
uid = make_kuid(current_user_ns(), result.uint_32);
if (!uid_valid(uid))
goto cifs_parse_mount_err;
ctx->backupuid = uid;
ctx->backupuid_specified = true;
break;
case Opt_backupgid:
gid = make_kgid(current_user_ns(), result.uint_32);
if (!gid_valid(gid))

View File

@ -3617,7 +3617,8 @@ static int smb3_simple_fallocate_write_range(unsigned int xid,
char *buf)
{
struct cifs_io_parms io_parms = {0};
int rc, nbytes;
int nbytes;
int rc = 0;
struct kvec iov[2];
io_parms.netfid = cfile->fid.netfid;