summaryrefslogtreecommitdiffstats
path: root/kernel/fs/ocfs2/inode.h
diff options
context:
space:
mode:
authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/fs/ocfs2/inode.h
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/fs/ocfs2/inode.h')
-rw-r--r--kernel/fs/ocfs2/inode.h190
1 files changed, 190 insertions, 0 deletions
diff --git a/kernel/fs/ocfs2/inode.h b/kernel/fs/ocfs2/inode.h
new file mode 100644
index 000000000..5e86b247c
--- /dev/null
+++ b/kernel/fs/ocfs2/inode.h
@@ -0,0 +1,190 @@
+/* -*- mode: c; c-basic-offset: 8; -*-
+ * vim: noexpandtab sw=8 ts=8 sts=0:
+ *
+ * inode.h
+ *
+ * Function prototypes
+ *
+ * Copyright (C) 2002, 2004 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#ifndef OCFS2_INODE_H
+#define OCFS2_INODE_H
+
+#include "extent_map.h"
+
+/* OCFS2 Inode Private Data */
+struct ocfs2_inode_info
+{
+ u64 ip_blkno;
+
+ struct ocfs2_lock_res ip_rw_lockres;
+ struct ocfs2_lock_res ip_inode_lockres;
+ struct ocfs2_lock_res ip_open_lockres;
+
+ /* protects allocation changes on this inode. */
+ struct rw_semaphore ip_alloc_sem;
+
+ /* protects extended attribute changes on this inode */
+ struct rw_semaphore ip_xattr_sem;
+
+ /* Number of outstanding AIO's which are not page aligned */
+ struct mutex ip_unaligned_aio;
+
+ /* These fields are protected by ip_lock */
+ spinlock_t ip_lock;
+ u32 ip_open_count;
+ struct list_head ip_io_markers;
+ u32 ip_clusters;
+
+ u16 ip_dyn_features;
+ struct mutex ip_io_mutex;
+ u32 ip_flags; /* see below */
+ u32 ip_attr; /* inode attributes */
+
+ /* protected by recovery_lock. */
+ struct inode *ip_next_orphan;
+
+ struct ocfs2_caching_info ip_metadata_cache;
+ struct ocfs2_extent_map ip_extent_map;
+ struct inode vfs_inode;
+ struct jbd2_inode ip_jinode;
+
+ u32 ip_dir_start_lookup;
+
+ /* Only valid if the inode is the dir. */
+ u32 ip_last_used_slot;
+ u64 ip_last_used_group;
+ u32 ip_dir_lock_gen;
+
+ struct ocfs2_alloc_reservation ip_la_data_resv;
+
+ /*
+ * Transactions that contain inode's metadata needed to complete
+ * fsync and fdatasync, respectively.
+ */
+ tid_t i_sync_tid;
+ tid_t i_datasync_tid;
+
+ wait_queue_head_t append_dio_wq;
+
+ struct dquot *i_dquot[MAXQUOTAS];
+};
+
+/*
+ * Flags for the ip_flags field
+ */
+/* System file inodes */
+#define OCFS2_INODE_SYSTEM_FILE 0x00000001
+#define OCFS2_INODE_JOURNAL 0x00000002
+#define OCFS2_INODE_BITMAP 0x00000004
+/* This inode has been wiped from disk */
+#define OCFS2_INODE_DELETED 0x00000008
+/* Has the inode been orphaned on another node?
+ *
+ * This hints to ocfs2_drop_inode that it should clear i_nlink before
+ * continuing.
+ *
+ * We *only* set this on unlink vote from another node. If the inode
+ * was locally orphaned, then we're sure of the state and don't need
+ * to twiddle i_nlink later - it's either zero or not depending on
+ * whether our unlink succeeded. Otherwise we got this from a node
+ * whose intention was to orphan the inode, however he may have
+ * crashed, failed etc, so we let ocfs2_drop_inode zero the value and
+ * rely on ocfs2_delete_inode to sort things out under the proper
+ * cluster locks.
+ */
+#define OCFS2_INODE_MAYBE_ORPHANED 0x00000010
+/* Does someone have the file open O_DIRECT */
+#define OCFS2_INODE_OPEN_DIRECT 0x00000020
+/* Tell the inode wipe code it's not in orphan dir */
+#define OCFS2_INODE_SKIP_ORPHAN_DIR 0x00000040
+
+static inline struct ocfs2_inode_info *OCFS2_I(struct inode *inode)
+{
+ return container_of(inode, struct ocfs2_inode_info, vfs_inode);
+}
+
+#define INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags & OCFS2_INODE_JOURNAL)
+#define SET_INODE_JOURNAL(i) (OCFS2_I(i)->ip_flags |= OCFS2_INODE_JOURNAL)
+
+extern struct kmem_cache *ocfs2_inode_cache;
+
+extern const struct address_space_operations ocfs2_aops;
+extern const struct ocfs2_caching_operations ocfs2_inode_caching_ops;
+
+static inline struct ocfs2_caching_info *INODE_CACHE(struct inode *inode)
+{
+ return &OCFS2_I(inode)->ip_metadata_cache;
+}
+
+void ocfs2_evict_inode(struct inode *inode);
+int ocfs2_drop_inode(struct inode *inode);
+
+/* Flags for ocfs2_iget() */
+#define OCFS2_FI_FLAG_SYSFILE 0x1
+#define OCFS2_FI_FLAG_ORPHAN_RECOVERY 0x2
+struct inode *ocfs2_ilookup(struct super_block *sb, u64 feoff);
+struct inode *ocfs2_iget(struct ocfs2_super *osb, u64 feoff, unsigned flags,
+ int sysfile_type);
+int ocfs2_inode_init_private(struct inode *inode);
+int ocfs2_inode_revalidate(struct dentry *dentry);
+void ocfs2_populate_inode(struct inode *inode, struct ocfs2_dinode *fe,
+ int create_ino);
+void ocfs2_read_inode(struct inode *inode);
+void ocfs2_read_inode2(struct inode *inode, void *opaque);
+ssize_t ocfs2_rw_direct(int rw, struct file *filp, char *buf,
+ size_t size, loff_t *offp);
+void ocfs2_sync_blockdev(struct super_block *sb);
+void ocfs2_refresh_inode(struct inode *inode,
+ struct ocfs2_dinode *fe);
+int ocfs2_mark_inode_dirty(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *bh);
+struct buffer_head *ocfs2_bread(struct inode *inode,
+ int block, int *err, int reada);
+
+void ocfs2_set_inode_flags(struct inode *inode);
+void ocfs2_get_inode_flags(struct ocfs2_inode_info *oi);
+
+static inline blkcnt_t ocfs2_inode_sector_count(struct inode *inode)
+{
+ int c_to_s_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits - 9;
+
+ return (blkcnt_t)OCFS2_I(inode)->ip_clusters << c_to_s_bits;
+}
+
+/* Validate that a bh contains a valid inode */
+int ocfs2_validate_inode_block(struct super_block *sb,
+ struct buffer_head *bh);
+/*
+ * Read an inode block into *bh. If *bh is NULL, a bh will be allocated.
+ * This is a cached read. The inode will be validated with
+ * ocfs2_validate_inode_block().
+ */
+int ocfs2_read_inode_block(struct inode *inode, struct buffer_head **bh);
+/* The same, but can be passed OCFS2_BH_* flags */
+int ocfs2_read_inode_block_full(struct inode *inode, struct buffer_head **bh,
+ int flags);
+
+static inline struct ocfs2_inode_info *cache_info_to_inode(struct ocfs2_caching_info *ci)
+{
+ return container_of(ci, struct ocfs2_inode_info, ip_metadata_cache);
+}
+
+#endif /* OCFS2_INODE_H */