Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 172 insertions, 0 deletions

diff --git a/fs/xfs/xfs_dir_sf.h b/fs/xfs/xfs_dir_sf.h
new file mode 100644
index 000000000000..a61bcfc2a87d
--- /dev/null
+++ b/fs/xfs/xfs_dir_sf.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_DIR_SF_H__
+#define __XFS_DIR_SF_H__
+
+/*
+ * Directory layout when stored internal to an inode.
+ *
+ * Small directories are packed as tightly as possible so as to
+ * fit into the literal area of the inode.
+ */
+
+typedef struct { __uint8_t i[sizeof(xfs_ino_t)]; } xfs_dir_ino_t;
+
+/*
+ * The parent directory has a dedicated field, and the self-pointer must
+ * be calculated on the fly.
+ *
+ * Entries are packed toward the top as tight as possible.  The header
+ * and the elements much be memcpy'd out into a work area to get correct
+ * alignment for the inode number fields.
+ */
+typedef struct xfs_dir_shortform {
+        struct xfs_dir_sf_hdr {         /* constant-structure header block */
+                xfs_dir_ino_t parent;   /* parent dir inode number */
+                __uint8_t count;        /* count of active entries */
+        } hdr;
+        struct xfs_dir_sf_entry {
+                xfs_dir_ino_t inumber;  /* referenced inode number */
+                __uint8_t namelen;      /* actual length of name (no NULL) */
+                __uint8_t name[1];      /* name */
+        } list[1];                      /* variable sized array */
+} xfs_dir_shortform_t;
+typedef struct xfs_dir_sf_hdr xfs_dir_sf_hdr_t;
+typedef struct xfs_dir_sf_entry xfs_dir_sf_entry_t;
+
+/*
+ * We generate this then sort it, so that readdirs are returned in
+ * hash-order.  Else seekdir won't work.
+ */
+typedef struct xfs_dir_sf_sort {
+        __uint8_t       entno;          /* .=0, ..=1, else entry# + 2 */
+        __uint8_t       seqno;          /* sequence # with same hash value */
+        __uint8_t       namelen;        /* length of name value (no null) */
+        xfs_dahash_t    hash;           /* this entry's hash value */
+        xfs_intino_t    ino;            /* this entry's inode number */
+        char            *name;          /* name value, pointer into buffer */
+} xfs_dir_sf_sort_t;
+
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_GET_DIRINO)
+void xfs_dir_sf_get_dirino(xfs_dir_ino_t *from, xfs_ino_t *to);
+#define XFS_DIR_SF_GET_DIRINO(from,to)              xfs_dir_sf_get_dirino(from, to)
+#else
+#define XFS_DIR_SF_GET_DIRINO(from,to)              (*(to) = XFS_GET_DIR_INO8(*from))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_PUT_DIRINO)
+void xfs_dir_sf_put_dirino(xfs_ino_t *from, xfs_dir_ino_t *to);
+#define XFS_DIR_SF_PUT_DIRINO(from,to)    xfs_dir_sf_put_dirino(from, to)
+#else
+#define XFS_DIR_SF_PUT_DIRINO(from,to)    XFS_PUT_DIR_INO8(*(from), *(to))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ENTSIZE_BYNAME)
+int xfs_dir_sf_entsize_byname(int len);
+#define XFS_DIR_SF_ENTSIZE_BYNAME(len)          xfs_dir_sf_entsize_byname(len)
+#else
+#define XFS_DIR_SF_ENTSIZE_BYNAME(len)          /* space a name uses */ \
+        ((uint)sizeof(xfs_dir_sf_entry_t)-1 + (len))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ENTSIZE_BYENTRY)
+int xfs_dir_sf_entsize_byentry(xfs_dir_sf_entry_t *sfep);
+#define XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)        xfs_dir_sf_entsize_byentry(sfep)
+#else
+#define XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)        /* space an entry uses */ \
+        ((uint)sizeof(xfs_dir_sf_entry_t)-1 + (sfep)->namelen)
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_NEXTENTRY)
+xfs_dir_sf_entry_t *xfs_dir_sf_nextentry(xfs_dir_sf_entry_t *sfep);
+#define XFS_DIR_SF_NEXTENTRY(sfep)              xfs_dir_sf_nextentry(sfep)
+#else
+#define XFS_DIR_SF_NEXTENTRY(sfep)              /* next entry in struct */ \
+        ((xfs_dir_sf_entry_t *) \
+                ((char *)(sfep) + XFS_DIR_SF_ENTSIZE_BYENTRY(sfep)))
+#endif
+#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DIR_SF_ALLFIT)
+int xfs_dir_sf_allfit(int count, int totallen);
+#define XFS_DIR_SF_ALLFIT(count,totallen)       \
+        xfs_dir_sf_allfit(count,totallen)
+#else
+#define XFS_DIR_SF_ALLFIT(count,totallen)       /* will all entries fit? */ \
+        ((uint)sizeof(xfs_dir_sf_hdr_t) + \
+               ((uint)sizeof(xfs_dir_sf_entry_t)-1)*(count) + (totallen))
+#endif
+
+#if defined(XFS_DIR_TRACE)
+
+/*
+ * Kernel tracing support for directories.
+ */
+struct uio;
+struct xfs_inode;
+struct xfs_da_intnode;
+struct xfs_dinode;
+struct xfs_dir_leafblock;
+struct xfs_dir_leaf_entry;
+
+#define XFS_DIR_TRACE_SIZE      4096    /* size of global trace buffer */
+extern ktrace_t *xfs_dir_trace_buf;
+
+/*
+ * Trace record types.
+ */
+#define XFS_DIR_KTRACE_G_DU     1       /* dp, uio */
+#define XFS_DIR_KTRACE_G_DUB    2       /* dp, uio, bno */
+#define XFS_DIR_KTRACE_G_DUN    3       /* dp, uio, node */
+#define XFS_DIR_KTRACE_G_DUL    4       /* dp, uio, leaf */
+#define XFS_DIR_KTRACE_G_DUE    5       /* dp, uio, leaf entry */
+#define XFS_DIR_KTRACE_G_DUC    6       /* dp, uio, cookie */
+
+void xfs_dir_trace_g_du(char *where, struct xfs_inode *dp, struct uio *uio);
+void xfs_dir_trace_g_dub(char *where, struct xfs_inode *dp, struct uio *uio,
+                              xfs_dablk_t bno);
+void xfs_dir_trace_g_dun(char *where, struct xfs_inode *dp, struct uio *uio,
+                              struct xfs_da_intnode *node);
+void xfs_dir_trace_g_dul(char *where, struct xfs_inode *dp, struct uio *uio,
+                              struct xfs_dir_leafblock *leaf);
+void xfs_dir_trace_g_due(char *where, struct xfs_inode *dp, struct uio *uio,
+                              struct xfs_dir_leaf_entry *entry);
+void xfs_dir_trace_g_duc(char *where, struct xfs_inode *dp, struct uio *uio,
+                              xfs_off_t cookie);
+void xfs_dir_trace_enter(int type, char *where,
+                             void *a0, void *a1, void *a2, void *a3,
+                             void *a4, void *a5, void *a6, void *a7,
+                             void *a8, void *a9, void *a10, void *a11);
+#else
+#define xfs_dir_trace_g_du(w,d,u)
+#define xfs_dir_trace_g_dub(w,d,u,b)
+#define xfs_dir_trace_g_dun(w,d,u,n)
+#define xfs_dir_trace_g_dul(w,d,u,l)
+#define xfs_dir_trace_g_due(w,d,u,e)
+#define xfs_dir_trace_g_duc(w,d,u,c)
+#endif /* DEBUG */
+
+#endif  /* __XFS_DIR_SF_H__ */