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authorJames Morris <jmorris@namei.org>2009-02-06 11:01:45 +1100
committerJames Morris <jmorris@namei.org>2009-02-06 11:01:45 +1100
commitcb5629b10d64a8006622ce3a52bc887d91057d69 (patch)
tree7c06d8f30783115e3384721046258ce615b129c5 /arch/mips/include/asm/octeon/cvmx-asm.h
parent8920d5ad6ba74ae8ab020e90cc4d976980e68701 (diff)
parentf01d1d546abb2f4028b5299092f529eefb01253a (diff)
Merge branch 'master' into next
Conflicts: fs/namei.c Manually merged per: diff --cc fs/namei.c index 734f2b5,bbc15c2..0000000 --- a/fs/namei.c +++ b/fs/namei.c @@@ -860,9 -848,8 +849,10 @@@ static int __link_path_walk(const char nd->flags |= LOOKUP_CONTINUE; err = exec_permission_lite(inode); if (err == -EAGAIN) - err = vfs_permission(nd, MAY_EXEC); + err = inode_permission(nd->path.dentry->d_inode, + MAY_EXEC); + if (!err) + err = ima_path_check(&nd->path, MAY_EXEC); if (err) break; @@@ -1525,14 -1506,9 +1509,14 @@@ int may_open(struct path *path, int acc flag &= ~O_TRUNC; } - error = vfs_permission(nd, acc_mode); + error = inode_permission(inode, acc_mode); if (error) return error; + - error = ima_path_check(&nd->path, ++ error = ima_path_check(path, + acc_mode & (MAY_READ | MAY_WRITE | MAY_EXEC)); + if (error) + return error; /* * An append-only file must be opened in append mode for writing. */ Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'arch/mips/include/asm/octeon/cvmx-asm.h')
-rw-r--r--arch/mips/include/asm/octeon/cvmx-asm.h128
1 files changed, 128 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-asm.h b/arch/mips/include/asm/octeon/cvmx-asm.h
new file mode 100644
index 00000000000..b21d3fc1ef9
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-asm.h
@@ -0,0 +1,128 @@
+/***********************license start***************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2008 Cavium Networks
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * or visit http://www.gnu.org/licenses/.
+ *
+ * This file may also be available under a different license from Cavium.
+ * Contact Cavium Networks for more information
+ ***********************license end**************************************/
+
+/*
+ *
+ * This is file defines ASM primitives for the executive.
+ */
+#ifndef __CVMX_ASM_H__
+#define __CVMX_ASM_H__
+
+#include "octeon-model.h"
+
+/* other useful stuff */
+#define CVMX_SYNC asm volatile ("sync" : : : "memory")
+/* String version of SYNCW macro for using in inline asm constructs */
+#define CVMX_SYNCW_STR "syncw\nsyncw\n"
+#ifdef __OCTEON__
+
+/* Deprecated, will be removed in future release */
+#define CVMX_SYNCIO asm volatile ("nop")
+
+#define CVMX_SYNCIOBDMA asm volatile ("synciobdma" : : : "memory")
+
+/* Deprecated, will be removed in future release */
+#define CVMX_SYNCIOALL asm volatile ("nop")
+
+/*
+ * We actually use two syncw instructions in a row when we need a write
+ * memory barrier. This is because the CN3XXX series of Octeons have
+ * errata Core-401. This can cause a single syncw to not enforce
+ * ordering under very rare conditions. Even if it is rare, better safe
+ * than sorry.
+ */
+#define CVMX_SYNCW asm volatile ("syncw\n\tsyncw" : : : "memory")
+
+/*
+ * Define new sync instructions to be normal SYNC instructions for
+ * operating systems that use threads.
+ */
+#define CVMX_SYNCWS CVMX_SYNCW
+#define CVMX_SYNCS CVMX_SYNC
+#define CVMX_SYNCWS_STR CVMX_SYNCW_STR
+#else
+/*
+ * Not using a Cavium compiler, always use the slower sync so the
+ * assembler stays happy.
+ */
+/* Deprecated, will be removed in future release */
+#define CVMX_SYNCIO asm volatile ("nop")
+
+#define CVMX_SYNCIOBDMA asm volatile ("sync" : : : "memory")
+
+/* Deprecated, will be removed in future release */
+#define CVMX_SYNCIOALL asm volatile ("nop")
+
+#define CVMX_SYNCW asm volatile ("sync" : : : "memory")
+#define CVMX_SYNCWS CVMX_SYNCW
+#define CVMX_SYNCS CVMX_SYNC
+#define CVMX_SYNCWS_STR CVMX_SYNCW_STR
+#endif
+
+/*
+ * CVMX_PREPARE_FOR_STORE makes each byte of the block unpredictable
+ * (actually old value or zero) until that byte is stored to (by this or
+ * another processor. Note that the value of each byte is not only
+ * unpredictable, but may also change again - up until the point when one
+ * of the cores stores to the byte.
+ */
+#define CVMX_PREPARE_FOR_STORE(address, offset) \
+ asm volatile ("pref 30, " CVMX_TMP_STR(offset) "(%[rbase])" : : \
+ [rbase] "d" (address))
+/*
+ * This is a command headed to the L2 controller to tell it to clear
+ * its dirty bit for a block. Basically, SW is telling HW that the
+ * current version of the block will not be used.
+ */
+#define CVMX_DONT_WRITE_BACK(address, offset) \
+ asm volatile ("pref 29, " CVMX_TMP_STR(offset) "(%[rbase])" : : \
+ [rbase] "d" (address))
+
+/* flush stores, invalidate entire icache */
+#define CVMX_ICACHE_INVALIDATE \
+ { CVMX_SYNC; asm volatile ("synci 0($0)" : : ); }
+
+/* flush stores, invalidate entire icache */
+#define CVMX_ICACHE_INVALIDATE2 \
+ { CVMX_SYNC; asm volatile ("cache 0, 0($0)" : : ); }
+
+/* complete prefetches, invalidate entire dcache */
+#define CVMX_DCACHE_INVALIDATE \
+ { CVMX_SYNC; asm volatile ("cache 9, 0($0)" : : ); }
+
+
+#define CVMX_POP(result, input) \
+ asm ("pop %[rd],%[rs]" : [rd] "=d" (result) : [rs] "d" (input))
+#define CVMX_DPOP(result, input) \
+ asm ("dpop %[rd],%[rs]" : [rd] "=d" (result) : [rs] "d" (input))
+
+/* some new cop0-like stuff */
+#define CVMX_RDHWR(result, regstr) \
+ asm volatile ("rdhwr %[rt],$" CVMX_TMP_STR(regstr) : [rt] "=d" (result))
+#define CVMX_RDHWRNV(result, regstr) \
+ asm ("rdhwr %[rt],$" CVMX_TMP_STR(regstr) : [rt] "=d" (result))
+#endif /* __CVMX_ASM_H__ */