[PATCH 23/49] xfs: introduce xfs_rtalloc_defs.h

Dave Chinner
2013-07-19T06:45:51Z

From: Dave Chinner <dchinner@redhat.com>

There are quite a few realtime device definitions shared with
userspace. Move them from xfs_rtalloc.h to xfs_rt_alloc_defs.h
so we don't need to share xfs_rtalloc.h with userspace anymore.

This removes the final __KERNEL__ region from the XFS kernel
codebase. Yay!

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
include/Makefile | 5 +-
include/libxfs.h | 1 -
include/xfs_format.h | 41 +++++++++++++
include/xfs_rtalloc.h | 166 --------------------------------------------------
include/xfs_types.h | 10 +++
5 files changed, 55 insertions(+), 168 deletions(-)
delete mode 100644 include/xfs_rtalloc.h

diff --git a/include/Makefile b/include/Makefile
index ab71aad..3610726 100644
--- a/include/Makefile
+++ b/include/Makefile
@@ -35,7 +35,10 @@ QAHFILES = libxfs.h libxlog.h \
xfs_log_format.h \
xfs_log_recover.h \
xfs_metadump.h \
- xfs_mount.h xfs_quota.h xfs_rtalloc.h xfs_sb.h xfs_symlink.h \
+ xfs_mount.h \
+ xfs_quota.h \
+ xfs_sb.h \
+ xfs_symlink.h \
xfs_trace.h xfs_trans.h xfs_trans_space.h xfs_dfrag.h

HFILES = handle.h jdm.h xqm.h xfs.h xfs_fs.h xfs_types.h
diff --git a/include/libxfs.h b/include/libxfs.h
index bc90082..8c09b77 100644
--- a/include/libxfs.h
+++ b/include/libxfs.h
@@ -614,7 +614,6 @@ extern int libxfs_nproc(void);
extern unsigned long libxfs_physmem(void); /* in kilobytes */

#include <xfs/xfs_ialloc.h>
-#include <xfs/xfs_rtalloc.h>

#include <xfs/xfs_attr_leaf.h>
#include <xfs/xfs_attr_remote.h>
diff --git a/include/xfs_format.h b/include/xfs_format.h
index 2b4f166..6205374 100644
--- a/include/xfs_format.h
+++ b/include/xfs_format.h
@@ -28,6 +28,47 @@
*/

/*
+ * RealTime Device format definitions
+ */
+
+/* Min and max rt extent sizes, specified in bytes */
+#define XFS_MAX_RTEXTSIZE (1024 * 1024 * 1024) /* 1GB */
+#define XFS_DFL_RTEXTSIZE (64 * 1024) /* 64kB */
+#define XFS_MIN_RTEXTSIZE (4 * 1024) /* 4kB */
+
+#define XFS_BLOCKSIZE(mp) ((mp)->m_sb.sb_blocksize)
+#define XFS_BLOCKMASK(mp) ((mp)->m_blockmask)
+#define XFS_BLOCKWSIZE(mp) ((mp)->m_blockwsize)
+#define XFS_BLOCKWMASK(mp) ((mp)->m_blockwmask)
+
+/*
+ * RT Summary and bit manipulation macros.
+ */
+#define XFS_SUMOFFS(mp,ls,bb) ((int)((ls) * (mp)->m_sb.sb_rbmblocks + (bb)))
+#define XFS_SUMOFFSTOBLOCK(mp,s) \
+ (((s) * (uint)sizeof(xfs_suminfo_t)) >> (mp)->m_sb.sb_blocklog)
+#define XFS_SUMPTR(mp,bp,so) \
+ ((xfs_suminfo_t *)((bp)->b_addr + \
+ (((so) * (uint)sizeof(xfs_suminfo_t)) & XFS_BLOCKMASK(mp))))
+
+#define XFS_BITTOBLOCK(mp,bi) ((bi) >> (mp)->m_blkbit_log)
+#define XFS_BLOCKTOBIT(mp,bb) ((bb) << (mp)->m_blkbit_log)
+#define XFS_BITTOWORD(mp,bi) \
+ ((int)(((bi) >> XFS_NBWORDLOG) & XFS_BLOCKWMASK(mp)))
+
+#define XFS_RTMIN(a,b) ((a) < (b) ? (a) : (b))
+#define XFS_RTMAX(a,b) ((a) > (b) ? (a) : (b))
+
+#define XFS_RTLOBIT(w) xfs_lowbit32(w)
+#define XFS_RTHIBIT(w) xfs_highbit32(w)
+
+#if XFS_BIG_BLKNOS
+#define XFS_RTBLOCKLOG(b) xfs_highbit64(b)
+#else
+#define XFS_RTBLOCKLOG(b) xfs_highbit32(b)
+#endif
+
+/*
* Dquot and dquot block format definitions
*/
#define XFS_DQUOT_MAGIC 0x4451 /* 'DQ' */
diff --git a/include/xfs_rtalloc.h b/include/xfs_rtalloc.h
deleted file mode 100644
index f7f3a35..0000000
--- a/include/xfs_rtalloc.h
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
- * 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.
- *
- * 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. 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 the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#ifndef __XFS_RTALLOC_H__
-#define __XFS_RTALLOC_H__
-
-struct xfs_mount;
-struct xfs_trans;
-
-/* Min and max rt extent sizes, specified in bytes */
-#define XFS_MAX_RTEXTSIZE (1024 * 1024 * 1024) /* 1GB */
-#define XFS_DFL_RTEXTSIZE (64 * 1024) /* 64kB */
-#define XFS_MIN_RTEXTSIZE (4 * 1024) /* 4kB */
-
-/*
- * Constants for bit manipulations.
- */
-#define XFS_NBBYLOG 3 /* log2(NBBY) */
-#define XFS_WORDLOG 2 /* log2(sizeof(xfs_rtword_t)) */
-#define XFS_NBWORDLOG (XFS_NBBYLOG + XFS_WORDLOG)
-#define XFS_NBWORD (1 << XFS_NBWORDLOG)
-#define XFS_WORDMASK ((1 << XFS_WORDLOG) - 1)
-
-#define XFS_BLOCKSIZE(mp) ((mp)->m_sb.sb_blocksize)
-#define XFS_BLOCKMASK(mp) ((mp)->m_blockmask)
-#define XFS_BLOCKWSIZE(mp) ((mp)->m_blockwsize)
-#define XFS_BLOCKWMASK(mp) ((mp)->m_blockwmask)
-
-/*
- * Summary and bit manipulation macros.
- */
-#define XFS_SUMOFFS(mp,ls,bb) ((int)((ls) * (mp)->m_sb.sb_rbmblocks + (bb)))
-#define XFS_SUMOFFSTOBLOCK(mp,s) \
- (((s) * (uint)sizeof(xfs_suminfo_t)) >> (mp)->m_sb.sb_blocklog)
-#define XFS_SUMPTR(mp,bp,so) \
- ((xfs_suminfo_t *)((bp)->b_addr + \
- (((so) * (uint)sizeof(xfs_suminfo_t)) & XFS_BLOCKMASK(mp))))
-
-#define XFS_BITTOBLOCK(mp,bi) ((bi) >> (mp)->m_blkbit_log)
-#define XFS_BLOCKTOBIT(mp,bb) ((bb) << (mp)->m_blkbit_log)
-#define XFS_BITTOWORD(mp,bi) \
- ((int)(((bi) >> XFS_NBWORDLOG) & XFS_BLOCKWMASK(mp)))
-
-#define XFS_RTMIN(a,b) ((a) < (b) ? (a) : (b))
-#define XFS_RTMAX(a,b) ((a) > (b) ? (a) : (b))
-
-#define XFS_RTLOBIT(w) xfs_lowbit32(w)
-#define XFS_RTHIBIT(w) xfs_highbit32(w)
-
-#if XFS_BIG_BLKNOS
-#define XFS_RTBLOCKLOG(b) xfs_highbit64(b)
-#else
-#define XFS_RTBLOCKLOG(b) xfs_highbit32(b)
-#endif
-
-
-#ifdef __KERNEL__
-
-#ifdef CONFIG_XFS_RT
-/*
- * Function prototypes for exported functions.
- */
-
-/*
- * Allocate an extent in the realtime subvolume, with the usual allocation
- * parameters. The length units are all in realtime extents, as is the
- * result block number.
- */
-int /* error */
-xfs_rtallocate_extent(
- struct xfs_trans *tp, /* transaction pointer */
- xfs_rtblock_t bno, /* starting block number to allocate */
- xfs_extlen_t minlen, /* minimum length to allocate */
- xfs_extlen_t maxlen, /* maximum length to allocate */
- xfs_extlen_t *len, /* out: actual length allocated */
- xfs_alloctype_t type, /* allocation type XFS_ALLOCTYPE... */
- int wasdel, /* was a delayed allocation extent */
- xfs_extlen_t prod, /* extent product factor */
- xfs_rtblock_t *rtblock); /* out: start block allocated */
-
-/*
- * Free an extent in the realtime subvolume. Length is expressed in
- * realtime extents, as is the block number.
- */
-int /* error */
-xfs_rtfree_extent(
- struct xfs_trans *tp, /* transaction pointer */
- xfs_rtblock_t bno, /* starting block number to free */
- xfs_extlen_t len); /* length of extent freed */
-
-/*
- * Initialize realtime fields in the mount structure.
- */
-int /* error */
-xfs_rtmount_init(
- struct xfs_mount *mp); /* file system mount structure */
-void
-xfs_rtunmount_inodes(
- struct xfs_mount *mp);
-
-/*
- * Get the bitmap and summary inodes into the mount structure
- * at mount time.
- */
-int /* error */
-xfs_rtmount_inodes(
- struct xfs_mount *mp); /* file system mount structure */
-
-/*
- * Pick an extent for allocation at the start of a new realtime file.
- * Use the sequence number stored in the atime field of the bitmap inode.
- * Translate this to a fraction of the rtextents, and return the product
- * of rtextents and the fraction.
- * The fraction sequence is 0, 1/2, 1/4, 3/4, 1/8, ..., 7/8, 1/16, ...
- */
-int /* error */
-xfs_rtpick_extent(
- struct xfs_mount *mp, /* file system mount point */
- struct xfs_trans *tp, /* transaction pointer */
- xfs_extlen_t len, /* allocation length (rtextents) */
- xfs_rtblock_t *pick); /* result rt extent */
-
-/*
- * Grow the realtime area of the filesystem.
- */
-int
-xfs_growfs_rt(
- struct xfs_mount *mp, /* file system mount structure */
- xfs_growfs_rt_t *in); /* user supplied growfs struct */
-
-#else
-# define xfs_rtallocate_extent(t,b,min,max,l,a,f,p,rb) (ENOSYS)
-# define xfs_rtfree_extent(t,b,l) (ENOSYS)
-# define xfs_rtpick_extent(m,t,l,rb) (ENOSYS)
-# define xfs_growfs_rt(mp,in) (ENOSYS)
-static inline int /* error */
-xfs_rtmount_init(
- xfs_mount_t *mp) /* file system mount structure */
-{
- if (mp->m_sb.sb_rblocks == 0)
- return 0;
-
- xfs_warn(mp, "Not built with CONFIG_XFS_RT");
- return ENOSYS;
-}
-# define xfs_rtmount_inodes(m) (((mp)->m_sb.sb_rblocks == 0)? 0 : (ENOSYS))
-# define xfs_rtunmount_inodes(m)
-#endif /* CONFIG_XFS_RT */
-
-#endif /* __KERNEL__ */
-
-#endif /* __XFS_RTALLOC_H__ */
diff --git a/include/xfs_types.h b/include/xfs_types.h
index b144a8f..6ed6b26 100644
--- a/include/xfs_types.h
+++ b/include/xfs_types.h
@@ -184,4 +184,14 @@ struct xfs_name {
*/
typedef __uint32_t xfs_dqid_t;

+/*
+ * Constants for bit manipulations.
+ */
+#define XFS_NBBYLOG 3 /* log2(NBBY) */
+#define XFS_WORDLOG 2 /* log2(sizeof(xfs_rtword_t)) */
+#define XFS_NBWORDLOG (XFS_NBBYLOG + XFS_WORDLOG)
+#define XFS_NBWORD (1 << XFS_NBWORDLOG)
+#define XFS_WORDMASK ((1 << XFS_WORDLOG) - 1)
+
+
#endif /* __XFS_TYPES_H__ */
--
1.8.3.2