Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2...

[cascardo/linux.git] / fs / cifs / misc.c

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 557506a..3a00c0d 100644 (file)
--- 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);
+}