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-rw-r--r--fs/cifs/misc.c63
1 files changed, 53 insertions, 10 deletions
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 557506ae1e2..3a00c0d0cea 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -29,6 +29,9 @@
#include "smberr.h"
#include "nterr.h"
#include "cifs_unicode.h"
+#ifdef CONFIG_CIFS_SMB2
+#include "smb2pdu.h"
+#endif
extern mempool_t *cifs_sm_req_poolp;
extern mempool_t *cifs_req_poolp;
@@ -40,7 +43,7 @@ extern mempool_t *cifs_req_poolp;
since the cifs fs was mounted */
unsigned int
-_GetXid(void)
+_get_xid(void)
{
unsigned int xid;
@@ -58,7 +61,7 @@ _GetXid(void)
}
void
-_FreeXid(unsigned int xid)
+_free_xid(unsigned int xid)
{
spin_lock(&GlobalMid_Lock);
/* if (GlobalTotalActiveXid == 0)
@@ -143,17 +146,27 @@ struct smb_hdr *
cifs_buf_get(void)
{
struct smb_hdr *ret_buf = NULL;
-
-/* We could use negotiated size instead of max_msgsize -
- but it may be more efficient to always alloc same size
- albeit slightly larger than necessary and maxbuffersize
- defaults to this and can not be bigger */
+ size_t buf_size = sizeof(struct smb_hdr);
+
+#ifdef CONFIG_CIFS_SMB2
+ /*
+ * SMB2 header is bigger than CIFS one - no problems to clean some
+ * more bytes for CIFS.
+ */
+ buf_size = sizeof(struct smb2_hdr);
+#endif
+ /*
+ * We could use negotiated size instead of max_msgsize -
+ * but it may be more efficient to always alloc same size
+ * albeit slightly larger than necessary and maxbuffersize
+ * defaults to this and can not be bigger.
+ */
ret_buf = mempool_alloc(cifs_req_poolp, GFP_NOFS);
/* clear the first few header bytes */
/* for most paths, more is cleared in header_assemble */
if (ret_buf) {
- memset(ret_buf, 0, sizeof(struct smb_hdr) + 3);
+ memset(ret_buf, 0, buf_size + 3);
atomic_inc(&bufAllocCount);
#ifdef CONFIG_CIFS_STATS2
atomic_inc(&totBufAllocCount);
@@ -448,12 +461,12 @@ is_valid_oplock_break(char *buffer, struct TCP_Server_Info *srv)
if (tcon->tid != buf->Tid)
continue;
- cifs_stats_inc(&tcon->num_oplock_brks);
+ cifs_stats_inc(&tcon->stats.cifs_stats.num_oplock_brks);
spin_lock(&cifs_file_list_lock);
list_for_each(tmp2, &tcon->openFileList) {
netfile = list_entry(tmp2, struct cifsFileInfo,
tlist);
- if (pSMB->Fid != netfile->netfid)
+ if (pSMB->Fid != netfile->fid.netfid)
continue;
cFYI(1, "file id match, oplock break");
@@ -566,3 +579,33 @@ backup_cred(struct cifs_sb_info *cifs_sb)
return false;
}
+
+void
+cifs_del_pending_open(struct cifs_pending_open *open)
+{
+ spin_lock(&cifs_file_list_lock);
+ list_del(&open->olist);
+ spin_unlock(&cifs_file_list_lock);
+}
+
+void
+cifs_add_pending_open_locked(struct cifs_fid *fid, struct tcon_link *tlink,
+ struct cifs_pending_open *open)
+{
+#ifdef CONFIG_CIFS_SMB2
+ memcpy(open->lease_key, fid->lease_key, SMB2_LEASE_KEY_SIZE);
+#endif
+ open->oplock = CIFS_OPLOCK_NO_CHANGE;
+ open->tlink = tlink;
+ fid->pending_open = open;
+ list_add_tail(&open->olist, &tlink_tcon(tlink)->pending_opens);
+}
+
+void
+cifs_add_pending_open(struct cifs_fid *fid, struct tcon_link *tlink,
+ struct cifs_pending_open *open)
+{
+ spin_lock(&cifs_file_list_lock);
+ cifs_add_pending_open_locked(fid, tlink, open);
+ spin_unlock(&cifs_file_list_lock);
+}