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| author | Ronnie Sahlberg | 2018-06-13 22:48:35 +0200 |
|---|---|---|
| committer | Steve French | 2018-06-15 09:38:07 +0200 |
| commit | a93864d93977b99bda6c348a09b90a3d7ef8db3a (patch) | |
| tree | 30d488812c67cb68adce979d2b642756e9281a37 /fs/cifs/smb2misc.c | |
| parent | smb3: note that smb3.11 posix extensions mount option is experimental (diff) | |
| download | kernel-qcow2-linux-a93864d93977b99bda6c348a09b90a3d7ef8db3a.tar.gz kernel-qcow2-linux-a93864d93977b99bda6c348a09b90a3d7ef8db3a.tar.xz kernel-qcow2-linux-a93864d93977b99bda6c348a09b90a3d7ef8db3a.zip | |
cifs: add lease tracking to the cached root fid
Use a read lease for the cached root fid so that we can detect
when the content of the directory changes (via a break) at which time
we close the handle. On next access to the root the handle will be reopened
and cached again.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/smb2misc.c')
| -rw-r--r-- | fs/cifs/smb2misc.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/fs/cifs/smb2misc.c b/fs/cifs/smb2misc.c index e2bec47c6845..0de87ca33e2e 100644 --- a/fs/cifs/smb2misc.c +++ b/fs/cifs/smb2misc.c @@ -492,10 +492,11 @@ cifs_ses_oplock_break(struct work_struct *work) { struct smb2_lease_break_work *lw = container_of(work, struct smb2_lease_break_work, lease_break); - int rc; + int rc = 0; rc = SMB2_lease_break(0, tlink_tcon(lw->tlink), lw->lease_key, lw->lease_state); + cifs_dbg(FYI, "Lease release rc %d\n", rc); cifs_put_tlink(lw->tlink); kfree(lw); @@ -561,6 +562,7 @@ smb2_tcon_has_lease(struct cifs_tcon *tcon, struct smb2_lease_break *rsp, open->oplock = lease_state; } + return found; } @@ -603,6 +605,18 @@ smb2_is_valid_lease_break(char *buffer) return true; } spin_unlock(&tcon->open_file_lock); + + if (tcon->crfid.is_valid && + !memcmp(rsp->LeaseKey, + tcon->crfid.fid->lease_key, + SMB2_LEASE_KEY_SIZE)) { + INIT_WORK(&tcon->crfid.lease_break, + smb2_cached_lease_break); + queue_work(cifsiod_wq, + &tcon->crfid.lease_break); + spin_unlock(&cifs_tcp_ses_lock); + return true; + } } } } |