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authorLinus Torvalds2011-01-13 10:27:28 -0800
committerLinus Torvalds2011-01-13 10:27:28 -0800
commitb2034d474b7e1e8578bd5c2977024b51693269d9 (patch)
treee43969bf7c2ba89884c2580f56978826f1014520 /fs/coda/coda_fs_i.h
parent27d189c02ba25851973c8582e419c0bded9f7e5b (diff)
parent924241575a85249b9d410e38f5b2fcad9035e45c (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (41 commits) fs: add documentation on fallocate hole punching Gfs2: fail if we try to use hole punch Btrfs: fail if we try to use hole punch Ext4: fail if we try to use hole punch Ocfs2: handle hole punching via fallocate properly XFS: handle hole punching via fallocate properly fs: add hole punching to fallocate vfs: pass struct file to do_truncate on O_TRUNC opens (try #2) fix signedness mess in rw_verify_area() on 64bit architectures fs: fix kernel-doc for dcache::prepend_path fs: fix kernel-doc for dcache::d_validate sanitize ecryptfs ->mount() switch afs move internal-only parts of ncpfs headers to fs/ncpfs switch ncpfs switch 9p pass default dentry_operations to mount_pseudo() switch hostfs switch affs switch configfs ...
Diffstat (limited to 'fs/coda/coda_fs_i.h')
-rw-r--r--fs/coda/coda_fs_i.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h
new file mode 100644
index 000000000000..e35071b1de0e
--- /dev/null
+++ b/fs/coda/coda_fs_i.h
@@ -0,0 +1,58 @@
+/*
+ * coda_fs_i.h
+ *
+ * Copyright (C) 1998 Carnegie Mellon University
+ *
+ */
+
+#ifndef _LINUX_CODA_FS_I
+#define _LINUX_CODA_FS_I
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/spinlock.h>
+#include <linux/coda.h>
+
+/*
+ * coda fs inode data
+ * c_lock protects accesses to c_flags, c_mapcount, c_cached_epoch, c_uid and
+ * c_cached_perm.
+ * vfs_inode is set only when the inode is created and never changes.
+ * c_fid is set when the inode is created and should be considered immutable.
+ */
+struct coda_inode_info {
+ struct CodaFid c_fid; /* Coda identifier */
+ u_short c_flags; /* flags (see below) */
+ unsigned int c_mapcount; /* nr of times this inode is mapped */
+ unsigned int c_cached_epoch; /* epoch for cached permissions */
+ vuid_t c_uid; /* fsuid for cached permissions */
+ unsigned int c_cached_perm; /* cached access permissions */
+ spinlock_t c_lock;
+ struct inode vfs_inode;
+};
+
+/*
+ * coda fs file private data
+ */
+#define CODA_MAGIC 0xC0DAC0DA
+struct coda_file_info {
+ int cfi_magic; /* magic number */
+ struct file *cfi_container; /* container file for this cnode */
+ unsigned int cfi_mapcount; /* nr of times this file is mapped */
+};
+
+#define CODA_FTOC(file) ((struct coda_file_info *)((file)->private_data))
+
+/* flags */
+#define C_VATTR 0x1 /* Validity of vattr in inode */
+#define C_FLUSH 0x2 /* used after a flush */
+#define C_DYING 0x4 /* from venus (which died) */
+#define C_PURGE 0x8
+
+int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *);
+struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
+int coda_cnode_makectl(struct inode **inode, struct super_block *sb);
+struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
+void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *);
+
+#endif