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| author |   Pavel Shilovsky <pshilovsky@samba.org> | 2012-09-19 06:22:44 -0700 |
|---|---|---|
| committer |   Steve French <smfrench@gmail.com> | 2012-09-24 21:46:33 -0500 |
| commit | b8c32dbb0deb287a5fcb78251e4eae6c7275760d (patch) | |
| tree | fa3cddfd4595846921f51a922b7e1722b1e35fa4 /fs/cifs/smb2ops.c | |
| parent | CIFS: Check for mandatory brlocks on read/write (diff) | |
| download | linux-dev-b8c32dbb0deb287a5fcb78251e4eae6c7275760d.tar.xz linux-dev-b8c32dbb0deb287a5fcb78251e4eae6c7275760d.zip | |
CIFS: Request SMB2.1 leases
if server supports them and we need oplocks.
Signed-off-by: Pavel Shilovsky <piastryyy@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/smb2ops.c')
| -rw-r--r-- | fs/cifs/smb2ops.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 0808b238219b..360d9079af49 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -555,6 +555,24 @@ smb2_mand_lock(const unsigned int xid, struct cifsFileInfo *cfile, __u64 offset, current->tgid, length, offset, type, wait); } +static void +smb2_get_lease_key(struct inode *inode, struct cifs_fid *fid) +{ + memcpy(fid->lease_key, CIFS_I(inode)->lease_key, SMB2_LEASE_KEY_SIZE); +} + +static void +smb2_set_lease_key(struct inode *inode, struct cifs_fid *fid) +{ + memcpy(CIFS_I(inode)->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE); +} + +static void +smb2_new_lease_key(struct cifs_fid *fid) +{ + get_random_bytes(fid->lease_key, SMB2_LEASE_KEY_SIZE); +} + struct smb_version_operations smb21_operations = { .compare_fids = smb2_compare_fids, .setup_request = smb2_setup_request, @@ -616,6 +634,9 @@ struct smb_version_operations smb21_operations = { .mand_lock = smb2_mand_lock, .mand_unlock_range = smb2_unlock_range, .push_mand_locks = smb2_push_mandatory_locks, + .get_lease_key = smb2_get_lease_key, + .set_lease_key = smb2_set_lease_key, + .new_lease_key = smb2_new_lease_key, }; struct smb_version_values smb21_values = { |