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authorChristoph Lameter <clameter@sgi.com>2008-02-27 14:07:10 -0500
committerChristoph Lameter <clameter@sgi.com>2008-02-27 14:07:10 -0500
commit9ef64cb4320df821638b508f79aa8b858cca99f0 (patch)
tree4efbf0854234f89c6f4413077ec795fc669b5b0a /fs/xfs
parent6f157c1d268d5888ca44c589dccd01729c4172f6 (diff)
parent7704a8b6fc4a8f51599eb2af4dcf1e2ac9c7e576 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/Kbuild6
-rw-r--r--fs/xfs/Makefile118
-rw-r--r--fs/xfs/Makefile-linux-2.6117
-rw-r--r--fs/xfs/xfs_bit.c103
-rw-r--r--fs/xfs/xfs_bit.h27
-rw-r--r--fs/xfs/xfs_rtalloc.c19
6 files changed, 237 insertions, 153 deletions
diff --git a/fs/xfs/Kbuild b/fs/xfs/Kbuild
deleted file mode 100644
index 2566e96706f1..000000000000
--- a/fs/xfs/Kbuild
+++ /dev/null
@@ -1,6 +0,0 @@
1#
2# The xfs people like to share Makefile with 2.6 and 2.4.
3# Utilise file named Kbuild file which has precedence over Makefile.
4#
5
6include $(srctree)/$(obj)/Makefile-linux-2.6
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 49e3e7e5e3dc..36ec614e699a 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -1 +1,117 @@
1include $(TOPDIR)/fs/xfs/Makefile-linux-$(VERSION).$(PATCHLEVEL) 1#
2# Copyright (c) 2000-2005 Silicon Graphics, Inc.
3# All Rights Reserved.
4#
5# This program is free software; you can redistribute it and/or
6# modify it under the terms of the GNU General Public License as
7# published by the Free Software Foundation.
8#
9# This program is distributed in the hope that it would be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write the Free Software Foundation,
16# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17#
18
19EXTRA_CFLAGS += -I$(src) -I$(src)/linux-2.6 -funsigned-char
20
21XFS_LINUX := linux-2.6
22
23ifeq ($(CONFIG_XFS_DEBUG),y)
24 EXTRA_CFLAGS += -g
25endif
26
27obj-$(CONFIG_XFS_FS) += xfs.o
28
29xfs-$(CONFIG_XFS_QUOTA) += $(addprefix quota/, \
30 xfs_dquot.o \
31 xfs_dquot_item.o \
32 xfs_trans_dquot.o \
33 xfs_qm_syscalls.o \
34 xfs_qm_bhv.o \
35 xfs_qm.o)
36
37ifeq ($(CONFIG_XFS_QUOTA),y)
38xfs-$(CONFIG_PROC_FS) += quota/xfs_qm_stats.o
39endif
40
41xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
42xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
43xfs-$(CONFIG_PROC_FS) += $(XFS_LINUX)/xfs_stats.o
44xfs-$(CONFIG_SYSCTL) += $(XFS_LINUX)/xfs_sysctl.o
45xfs-$(CONFIG_COMPAT) += $(XFS_LINUX)/xfs_ioctl32.o
46
47
48xfs-y += xfs_alloc.o \
49 xfs_alloc_btree.o \
50 xfs_attr.o \
51 xfs_attr_leaf.o \
52 xfs_bit.o \
53 xfs_bmap.o \
54 xfs_bmap_btree.o \
55 xfs_btree.o \
56 xfs_buf_item.o \
57 xfs_da_btree.o \
58 xfs_dir2.o \
59 xfs_dir2_block.o \
60 xfs_dir2_data.o \
61 xfs_dir2_leaf.o \
62 xfs_dir2_node.o \
63 xfs_dir2_sf.o \
64 xfs_error.o \
65 xfs_extfree_item.o \
66 xfs_filestream.o \
67 xfs_fsops.o \
68 xfs_ialloc.o \
69 xfs_ialloc_btree.o \
70 xfs_iget.o \
71 xfs_inode.o \
72 xfs_inode_item.o \
73 xfs_iomap.o \
74 xfs_itable.o \
75 xfs_dfrag.o \
76 xfs_log.o \
77 xfs_log_recover.o \
78 xfs_mount.o \
79 xfs_mru_cache.o \
80 xfs_rename.o \
81 xfs_trans.o \
82 xfs_trans_ail.o \
83 xfs_trans_buf.o \
84 xfs_trans_extfree.o \
85 xfs_trans_inode.o \
86 xfs_trans_item.o \
87 xfs_utils.o \
88 xfs_vfsops.o \
89 xfs_vnodeops.o \
90 xfs_rw.o \
91 xfs_dmops.o \
92 xfs_qmops.o
93
94xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o
95
96# Objects in linux/
97xfs-y += $(addprefix $(XFS_LINUX)/, \
98 kmem.o \
99 xfs_aops.o \
100 xfs_buf.o \
101 xfs_export.o \
102 xfs_file.o \
103 xfs_fs_subr.o \
104 xfs_globals.o \
105 xfs_ioctl.o \
106 xfs_iops.o \
107 xfs_lrw.o \
108 xfs_super.o \
109 xfs_vnode.o)
110
111# Objects in support/
112xfs-y += $(addprefix support/, \
113 debug.o \
114 uuid.o)
115
116xfs-$(CONFIG_XFS_TRACE) += support/ktrace.o
117
diff --git a/fs/xfs/Makefile-linux-2.6 b/fs/xfs/Makefile-linux-2.6
deleted file mode 100644
index 97316451fc6d..000000000000
--- a/fs/xfs/Makefile-linux-2.6
+++ /dev/null
@@ -1,117 +0,0 @@
1#
2# Copyright (c) 2000-2005 Silicon Graphics, Inc.
3# All Rights Reserved.
4#
5# This program is free software; you can redistribute it and/or
6# modify it under the terms of the GNU General Public License as
7# published by the Free Software Foundation.
8#
9# This program is distributed in the hope that it would be useful,
10# but WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12# GNU General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write the Free Software Foundation,
16# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17#
18
19EXTRA_CFLAGS += -Ifs/xfs -Ifs/xfs/linux-2.6 -funsigned-char
20
21XFS_LINUX := linux-2.6
22
23ifeq ($(CONFIG_XFS_DEBUG),y)
24 EXTRA_CFLAGS += -g
25endif
26
27obj-$(CONFIG_XFS_FS) += xfs.o
28
29xfs-$(CONFIG_XFS_QUOTA) += $(addprefix quota/, \
30 xfs_dquot.o \
31 xfs_dquot_item.o \
32 xfs_trans_dquot.o \
33 xfs_qm_syscalls.o \
34 xfs_qm_bhv.o \
35 xfs_qm.o)
36
37ifeq ($(CONFIG_XFS_QUOTA),y)
38xfs-$(CONFIG_PROC_FS) += quota/xfs_qm_stats.o
39endif
40
41xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
42xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
43xfs-$(CONFIG_PROC_FS) += $(XFS_LINUX)/xfs_stats.o
44xfs-$(CONFIG_SYSCTL) += $(XFS_LINUX)/xfs_sysctl.o
45xfs-$(CONFIG_COMPAT) += $(XFS_LINUX)/xfs_ioctl32.o
46
47
48xfs-y += xfs_alloc.o \
49 xfs_alloc_btree.o \
50 xfs_attr.o \
51 xfs_attr_leaf.o \
52 xfs_bit.o \
53 xfs_bmap.o \
54 xfs_bmap_btree.o \
55 xfs_btree.o \
56 xfs_buf_item.o \
57 xfs_da_btree.o \
58 xfs_dir2.o \
59 xfs_dir2_block.o \
60 xfs_dir2_data.o \
61 xfs_dir2_leaf.o \
62 xfs_dir2_node.o \
63 xfs_dir2_sf.o \
64 xfs_error.o \
65 xfs_extfree_item.o \
66 xfs_filestream.o \
67 xfs_fsops.o \
68 xfs_ialloc.o \
69 xfs_ialloc_btree.o \
70 xfs_iget.o \
71 xfs_inode.o \
72 xfs_inode_item.o \
73 xfs_iomap.o \
74 xfs_itable.o \
75 xfs_dfrag.o \
76 xfs_log.o \
77 xfs_log_recover.o \
78 xfs_mount.o \
79 xfs_mru_cache.o \
80 xfs_rename.o \
81 xfs_trans.o \
82 xfs_trans_ail.o \
83 xfs_trans_buf.o \
84 xfs_trans_extfree.o \
85 xfs_trans_inode.o \
86 xfs_trans_item.o \
87 xfs_utils.o \
88 xfs_vfsops.o \
89 xfs_vnodeops.o \
90 xfs_rw.o \
91 xfs_dmops.o \
92 xfs_qmops.o
93
94xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o
95
96# Objects in linux/
97xfs-y += $(addprefix $(XFS_LINUX)/, \
98 kmem.o \
99 xfs_aops.o \
100 xfs_buf.o \
101 xfs_export.o \
102 xfs_file.o \
103 xfs_fs_subr.o \
104 xfs_globals.o \
105 xfs_ioctl.o \
106 xfs_iops.o \
107 xfs_lrw.o \
108 xfs_super.o \
109 xfs_vnode.o)
110
111# Objects in support/
112xfs-y += $(addprefix support/, \
113 debug.o \
114 uuid.o)
115
116xfs-$(CONFIG_XFS_TRACE) += support/ktrace.o
117
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index 48228848f5ae..fab0b6d5a41b 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -25,6 +25,109 @@
25 * XFS bit manipulation routines, used in non-realtime code. 25 * XFS bit manipulation routines, used in non-realtime code.
26 */ 26 */
27 27
28#ifndef HAVE_ARCH_HIGHBIT
29/*
30 * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
31 */
32static const char xfs_highbit[256] = {
33 -1, 0, 1, 1, 2, 2, 2, 2, /* 00 .. 07 */
34 3, 3, 3, 3, 3, 3, 3, 3, /* 08 .. 0f */
35 4, 4, 4, 4, 4, 4, 4, 4, /* 10 .. 17 */
36 4, 4, 4, 4, 4, 4, 4, 4, /* 18 .. 1f */
37 5, 5, 5, 5, 5, 5, 5, 5, /* 20 .. 27 */
38 5, 5, 5, 5, 5, 5, 5, 5, /* 28 .. 2f */
39 5, 5, 5, 5, 5, 5, 5, 5, /* 30 .. 37 */
40 5, 5, 5, 5, 5, 5, 5, 5, /* 38 .. 3f */
41 6, 6, 6, 6, 6, 6, 6, 6, /* 40 .. 47 */
42 6, 6, 6, 6, 6, 6, 6, 6, /* 48 .. 4f */
43 6, 6, 6, 6, 6, 6, 6, 6, /* 50 .. 57 */
44 6, 6, 6, 6, 6, 6, 6, 6, /* 58 .. 5f */
45 6, 6, 6, 6, 6, 6, 6, 6, /* 60 .. 67 */
46 6, 6, 6, 6, 6, 6, 6, 6, /* 68 .. 6f */
47 6, 6, 6, 6, 6, 6, 6, 6, /* 70 .. 77 */
48 6, 6, 6, 6, 6, 6, 6, 6, /* 78 .. 7f */
49 7, 7, 7, 7, 7, 7, 7, 7, /* 80 .. 87 */
50 7, 7, 7, 7, 7, 7, 7, 7, /* 88 .. 8f */
51 7, 7, 7, 7, 7, 7, 7, 7, /* 90 .. 97 */
52 7, 7, 7, 7, 7, 7, 7, 7, /* 98 .. 9f */
53 7, 7, 7, 7, 7, 7, 7, 7, /* a0 .. a7 */
54 7, 7, 7, 7, 7, 7, 7, 7, /* a8 .. af */
55 7, 7, 7, 7, 7, 7, 7, 7, /* b0 .. b7 */
56 7, 7, 7, 7, 7, 7, 7, 7, /* b8 .. bf */
57 7, 7, 7, 7, 7, 7, 7, 7, /* c0 .. c7 */
58 7, 7, 7, 7, 7, 7, 7, 7, /* c8 .. cf */
59 7, 7, 7, 7, 7, 7, 7, 7, /* d0 .. d7 */
60 7, 7, 7, 7, 7, 7, 7, 7, /* d8 .. df */
61 7, 7, 7, 7, 7, 7, 7, 7, /* e0 .. e7 */
62 7, 7, 7, 7, 7, 7, 7, 7, /* e8 .. ef */
63 7, 7, 7, 7, 7, 7, 7, 7, /* f0 .. f7 */
64 7, 7, 7, 7, 7, 7, 7, 7, /* f8 .. ff */
65};
66#endif
67
68/*
69 * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
70 */
71inline int
72xfs_highbit32(
73 __uint32_t v)
74{
75#ifdef HAVE_ARCH_HIGHBIT
76 return highbit32(v);
77#else
78 int i;
79
80 if (v & 0xffff0000)
81 if (v & 0xff000000)
82 i = 24;
83 else
84 i = 16;
85 else if (v & 0x0000ffff)
86 if (v & 0x0000ff00)
87 i = 8;
88 else
89 i = 0;
90 else
91 return -1;
92 return i + xfs_highbit[(v >> i) & 0xff];
93#endif
94}
95
96/*
97 * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
98 */
99int
100xfs_lowbit64(
101 __uint64_t v)
102{
103 __uint32_t w = (__uint32_t)v;
104 int n = 0;
105
106 if (w) { /* lower bits */
107 n = ffs(w);
108 } else { /* upper bits */
109 w = (__uint32_t)(v >> 32);
110 if (w && (n = ffs(w)))
111 n += 32;
112 }
113 return n - 1;
114}
115
116/*
117 * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
118 */
119int
120xfs_highbit64(
121 __uint64_t v)
122{
123 __uint32_t h = (__uint32_t)(v >> 32);
124
125 if (h)
126 return xfs_highbit32(h) + 32;
127 return xfs_highbit32((__uint32_t)v);
128}
129
130
28/* 131/*
29 * Return whether bitmap is empty. 132 * Return whether bitmap is empty.
30 * Size is number of words in the bitmap, which is padded to word boundary 133 * Size is number of words in the bitmap, which is padded to word boundary
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h
index 325a007dec91..082641a9782c 100644
--- a/fs/xfs/xfs_bit.h
+++ b/fs/xfs/xfs_bit.h
@@ -47,30 +47,13 @@ static inline __uint64_t xfs_mask64lo(int n)
47} 47}
48 48
49/* Get high bit set out of 32-bit argument, -1 if none set */ 49/* Get high bit set out of 32-bit argument, -1 if none set */
50static inline int xfs_highbit32(__uint32_t v) 50extern int xfs_highbit32(__uint32_t v);
51{
52 return fls(v) - 1;
53}
54
55/* Get high bit set out of 64-bit argument, -1 if none set */
56static inline int xfs_highbit64(__uint64_t v)
57{
58 return fls64(v) - 1;
59}
60
61/* Get low bit set out of 32-bit argument, -1 if none set */
62static inline int xfs_lowbit32(__uint32_t v)
63{
64 __uint32_t t = v;
65 return (t) ? find_first_bit((unsigned long *)&t, 32) : -1;
66}
67 51
68/* Get low bit set out of 64-bit argument, -1 if none set */ 52/* Get low bit set out of 64-bit argument, -1 if none set */
69static inline int xfs_lowbit64(__uint64_t v) 53extern int xfs_lowbit64(__uint64_t v);
70{ 54
71 __uint64_t t = v; 55/* Get high bit set out of 64-bit argument, -1 if none set */
72 return (t) ? find_first_bit((unsigned long *)&t, 64) : -1; 56extern int xfs_highbit64(__uint64_t);
73}
74 57
75/* Return whether bitmap is empty (1 == empty) */ 58/* Return whether bitmap is empty (1 == empty) */
76extern int xfs_bitmap_empty(uint *map, uint size); 59extern int xfs_bitmap_empty(uint *map, uint size);
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index ca83ddf72af4..47082c01872d 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -73,6 +73,18 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
73 */ 73 */
74 74
75/* 75/*
76 * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
77 */
78STATIC int
79xfs_lowbit32(
80 __uint32_t v)
81{
82 if (v)
83 return ffs(v) - 1;
84 return -1;
85}
86
87/*
76 * Allocate space to the bitmap or summary file, and zero it, for growfs. 88 * Allocate space to the bitmap or summary file, and zero it, for growfs.
77 */ 89 */
78STATIC int /* error */ 90STATIC int /* error */
@@ -432,7 +444,6 @@ xfs_rtallocate_extent_near(
432 } 444 }
433 bbno = XFS_BITTOBLOCK(mp, bno); 445 bbno = XFS_BITTOBLOCK(mp, bno);
434 i = 0; 446 i = 0;
435 ASSERT(minlen != 0);
436 log2len = xfs_highbit32(minlen); 447 log2len = xfs_highbit32(minlen);
437 /* 448 /*
438 * Loop over all bitmap blocks (bbno + i is current block). 449 * Loop over all bitmap blocks (bbno + i is current block).
@@ -601,8 +612,6 @@ xfs_rtallocate_extent_size(
601 xfs_suminfo_t sum; /* summary information for extents */ 612 xfs_suminfo_t sum; /* summary information for extents */
602 613
603 ASSERT(minlen % prod == 0 && maxlen % prod == 0); 614 ASSERT(minlen % prod == 0 && maxlen % prod == 0);
604 ASSERT(maxlen != 0);
605
606 /* 615 /*
607 * Loop over all the levels starting with maxlen. 616 * Loop over all the levels starting with maxlen.
608 * At each level, look at all the bitmap blocks, to see if there 617 * At each level, look at all the bitmap blocks, to see if there
@@ -660,9 +669,6 @@ xfs_rtallocate_extent_size(
660 *rtblock = NULLRTBLOCK; 669 *rtblock = NULLRTBLOCK;
661 return 0; 670 return 0;
662 } 671 }
663 ASSERT(minlen != 0);
664 ASSERT(maxlen != 0);
665
666 /* 672 /*
667 * Loop over sizes, from maxlen down to minlen. 673 * Loop over sizes, from maxlen down to minlen.
668 * This time, when we do the allocations, allow smaller ones 674 * This time, when we do the allocations, allow smaller ones
@@ -1948,7 +1954,6 @@ xfs_growfs_rt(
1948 nsbp->sb_blocksize * nsbp->sb_rextsize); 1954 nsbp->sb_blocksize * nsbp->sb_rextsize);
1949 nsbp->sb_rextents = nsbp->sb_rblocks; 1955 nsbp->sb_rextents = nsbp->sb_rblocks;
1950 do_div(nsbp->sb_rextents, nsbp->sb_rextsize); 1956 do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
1951 ASSERT(nsbp->sb_rextents != 0);
1952 nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents); 1957 nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
1953 nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1; 1958 nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
1954 nrsumsize = 1959 nrsumsize =
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-20 23:50:37 -0400