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[GFS2] Fix sign problem in quota/statfs and cleanup _host structures

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This patch fixes some sign issues which were accidentally introduced
into the quota & statfs code during the endianess annotation process.
Also included is a general clean up which moves all of the _host
structures out of gfs2_ondisk.h (where they should not have been to
start with) and into the places where they are actually used (often only
one place). Also those _host structures which are not required any more
are removed entirely (which is the eventual plan for all of them).

The conversion routines from ondisk.c are also moved into the places
where they are actually used, which for almost every one, was just one
single place, so all those are now static functions. This also cleans up
the end of gfs2_ondisk.h which no longer needs the #ifdef __KERNEL__.

The net result is a reduction of about 100 lines of code, many functions
now marked static plus the bug fixes as mentioned above. For good
measure I ran the code through sparse after making these changes to
check that there are no warnings generated.

This fixes Red Hat bz #239686

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2007-06-01 14:11:58 +01:00
parent ddf4b426aa
commit bb8d8a6f54
21 changed files with 372 additions and 479 deletions
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2
fs/gfs2/Makefile
View File

@ -1,7 +1,7 @@
obj-$(CONFIG_GFS2_FS) += gfs2.o
gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
glops.o inode.o lm.o log.o lops.o locking.o main.o meta_io.o \
mount.o ondisk.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
ops_fstype.o ops_inode.o ops_super.o ops_vm.o quota.o \
recovery.o rgrp.o super.o sys.o trans.o util.o

4
fs/gfs2/bmap.c
View File

@ -718,7 +718,7 @@ static int do_strip(struct gfs2_inode *ip, struct buffer_head *dibh,
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
rgd = rlist.rl_ghs[x].gh_gl->gl_object;
rg_blocks += rgd->rd_ri.ri_length;
rg_blocks += rgd->rd_length;
}
error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);
@ -824,7 +824,7 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
goto out_gunlock_q;
error = gfs2_trans_begin(sdp,
sdp->sd_max_height + al->al_rgd->rd_ri.ri_length +
sdp->sd_max_height + al->al_rgd->rd_length +
RES_JDATA + RES_DINODE + RES_STATFS + RES_QUOTA, 0);
if (error)
goto out_ipres;

2
fs/gfs2/dir.c
View File

@ -1897,7 +1897,7 @@ static int leaf_dealloc(struct gfs2_inode *dip, u32 index, u32 len,
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
rgd = rlist.rl_ghs[x].gh_gl->gl_object;
rg_blocks += rgd->rd_ri.ri_length;
rg_blocks += rgd->rd_length;
}
error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);

6
fs/gfs2/eattr.c
View File

@ -254,7 +254,7 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
if (error)
return error;
error = gfs2_trans_begin(sdp, rgd->rd_ri.ri_length + RES_DINODE +
error = gfs2_trans_begin(sdp, rgd->rd_length + RES_DINODE +
RES_EATTR + RES_STATFS + RES_QUOTA, blks);
if (error)
goto out_gunlock;
@ -700,7 +700,7 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
goto out_gunlock_q;
error = gfs2_trans_begin(GFS2_SB(&ip->i_inode),
blks + al->al_rgd->rd_ri.ri_length +
blks + al->al_rgd->rd_length +
RES_DINODE + RES_STATFS + RES_QUOTA, 0);
if (error)
goto out_ipres;
@ -1352,7 +1352,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
for (x = 0; x < rlist.rl_rgrps; x++) {
struct gfs2_rgrpd *rgd;
rgd = rlist.rl_ghs[x].gh_gl->gl_object;
rg_blocks += rgd->rd_ri.ri_length;
rg_blocks += rgd->rd_length;
}
error = gfs2_glock_nq_m(rlist.rl_rgrps, rlist.rl_ghs);

63
fs/gfs2/incore.h
View File

@ -28,6 +28,14 @@ struct gfs2_sbd;
typedef void (*gfs2_glop_bh_t) (struct gfs2_glock *gl, unsigned int ret);
struct gfs2_log_header_host {
u64 lh_sequence; /* Sequence number of this transaction */
u32 lh_flags; /* GFS2_LOG_HEAD_... */
u32 lh_tail; /* Block number of log tail */
u32 lh_blkno;
u32 lh_hash;
};
/*
* Structure of operations that are associated with each
* type of element in the log.
@ -60,12 +68,23 @@ struct gfs2_bitmap {
u32 bi_len;
};
struct gfs2_rgrp_host {
u32 rg_flags;
u32 rg_free;
u32 rg_dinodes;
u64 rg_igeneration;
};
struct gfs2_rgrpd {
struct list_head rd_list; /* Link with superblock */
struct list_head rd_list_mru;
struct list_head rd_recent; /* Recently used rgrps */
struct gfs2_glock *rd_gl; /* Glock for this rgrp */
struct gfs2_rindex_host rd_ri;
u64 rd_addr; /* grp block disk address */
u64 rd_data0; /* first data location */
u32 rd_length; /* length of rgrp header in fs blocks */
u32 rd_data; /* num of data blocks in rgrp */
u32 rd_bitbytes; /* number of bytes in data bitmaps */
struct gfs2_rgrp_host rd_rg;
u64 rd_rg_vn;
struct gfs2_bitmap *rd_bits;
@ -211,6 +230,20 @@ enum {
GIF_SW_PAGED = 3,
};
struct gfs2_dinode_host {
u64 di_size; /* number of bytes in file */
u64 di_blocks; /* number of blocks in file */
u64 di_goal_meta; /* rgrp to alloc from next */
u64 di_goal_data; /* data block goal */
u64 di_generation; /* generation number for NFS */
u32 di_flags; /* GFS2_DIF_... */
u16 di_height; /* height of metadata */
/* These only apply to directories */
u16 di_depth; /* Number of bits in the table */
u32 di_entries; /* The number of entries in the directory */
u64 di_eattr; /* extended attribute block number */
};
struct gfs2_inode {
struct inode i_inode;
u64 i_no_addr;
@ -346,6 +379,12 @@ struct gfs2_jdesc {
unsigned int jd_blocks;
};
struct gfs2_statfs_change_host {
s64 sc_total;
s64 sc_free;
s64 sc_dinodes;
};
#define GFS2_GLOCKD_DEFAULT 1
#define GFS2_GLOCKD_MAX 16
@ -418,6 +457,28 @@ enum {
#define GFS2_FSNAME_LEN 256
struct gfs2_inum_host {
u64 no_formal_ino;
u64 no_addr;
};
struct gfs2_sb_host {
u32 sb_magic;
u32 sb_type;
u32 sb_format;
u32 sb_fs_format;
u32 sb_multihost_format;
u32 sb_bsize;
u32 sb_bsize_shift;
struct gfs2_inum_host sb_master_dir;
struct gfs2_inum_host sb_root_dir;
char sb_lockproto[GFS2_LOCKNAME_LEN];
char sb_locktable[GFS2_LOCKNAME_LEN];
};
struct gfs2_sbd {
struct super_block *sd_vfs;
struct super_block *sd_vfs_meta;

83
fs/gfs2/inode.c
View File

@ -38,6 +38,11 @@
#include "trans.h"
#include "util.h"
struct gfs2_inum_range_host {
u64 ir_start;
u64 ir_length;
};
static int iget_test(struct inode *inode, void *opaque)
{
struct gfs2_inode *ip = GFS2_I(inode);
@ -402,6 +407,22 @@ struct inode *gfs2_lookupi(struct inode *dir, const struct qstr *name,
return inode ? inode : ERR_PTR(error);
}
static void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf)
{
const struct gfs2_inum_range *str = buf;
ir->ir_start = be64_to_cpu(str->ir_start);
ir->ir_length = be64_to_cpu(str->ir_length);
}
static void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf)
{
struct gfs2_inum_range *str = buf;
str->ir_start = cpu_to_be64(ir->ir_start);
str->ir_length = cpu_to_be64(ir->ir_length);
}
static int pick_formal_ino_1(struct gfs2_sbd *sdp, u64 *formal_ino)
{
struct gfs2_inode *ip = GFS2_I(sdp->sd_ir_inode);
@ -741,7 +762,7 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
goto fail_quota_locks;
error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
al->al_rgd->rd_ri.ri_length +
al->al_rgd->rd_length +
2 * RES_DINODE +
RES_STATFS + RES_QUOTA, 0);
if (error)
@ -1234,3 +1255,63 @@ int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
return error;
}
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
{
const struct gfs2_dinode_host *di = &ip->i_di;
struct gfs2_dinode *str = buf;
str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI);
str->di_header.__pad0 = 0;
str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI);
str->di_header.__pad1 = 0;
str->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
str->di_mode = cpu_to_be32(ip->i_inode.i_mode);
str->di_uid = cpu_to_be32(ip->i_inode.i_uid);
str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
str->di_size = cpu_to_be64(di->di_size);
str->di_blocks = cpu_to_be64(di->di_blocks);
str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec);
str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
str->di_goal_data = cpu_to_be64(di->di_goal_data);
str->di_generation = cpu_to_be64(di->di_generation);
str->di_flags = cpu_to_be32(di->di_flags);
str->di_height = cpu_to_be16(di->di_height);
str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
!(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
GFS2_FORMAT_DE : 0);
str->di_depth = cpu_to_be16(di->di_depth);
str->di_entries = cpu_to_be32(di->di_entries);
str->di_eattr = cpu_to_be64(di->di_eattr);
}
void gfs2_dinode_print(const struct gfs2_inode *ip)
{
const struct gfs2_dinode_host *di = &ip->i_di;
printk(KERN_INFO " no_formal_ino = %llu\n",
(unsigned long long)ip->i_no_formal_ino);
printk(KERN_INFO " no_addr = %llu\n",
(unsigned long long)ip->i_no_addr);
printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size);
printk(KERN_INFO " di_blocks = %llu\n",
(unsigned long long)di->di_blocks);
printk(KERN_INFO " di_goal_meta = %llu\n",
(unsigned long long)di->di_goal_meta);
printk(KERN_INFO " di_goal_data = %llu\n",
(unsigned long long)di->di_goal_data);
printk(KERN_INFO " di_flags = 0x%.8X\n", di->di_flags);
printk(KERN_INFO " di_height = %u\n", di->di_height);
printk(KERN_INFO " di_depth = %u\n", di->di_depth);
printk(KERN_INFO " di_entries = %u\n", di->di_entries);
printk(KERN_INFO " di_eattr = %llu\n",
(unsigned long long)di->di_eattr);
}

10
fs/gfs2/inode.h
View File

@ -38,6 +38,14 @@ static inline int gfs2_check_inum(const struct gfs2_inode *ip, u64 no_addr,
return ip->i_no_addr == no_addr && ip->i_no_formal_ino == no_formal_ino;
}
static inline void gfs2_inum_out(const struct gfs2_inode *ip,
struct gfs2_dirent *dent)
{
dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
}
void gfs2_inode_attr_in(struct gfs2_inode *ip);
struct inode *gfs2_inode_lookup(struct super_block *sb, u64 no_addr, unsigned type);
struct inode *gfs2_ilookup(struct super_block *sb, u64 no_addr);
@ -59,6 +67,8 @@ int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len);
int gfs2_glock_nq_atime(struct gfs2_holder *gh);
int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr);
struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
void gfs2_dinode_print(const struct gfs2_inode *ip);
#endif /* __INODE_DOT_H__ */

246
fs/gfs2/ondisk.c
View File

@ -1,246 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include "gfs2.h"
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include "incore.h"
#define pv(struct, member, fmt) printk(KERN_INFO " "#member" = "fmt"\n", \
struct->member);
/*
* gfs2_xxx_in - read in an xxx struct
* first arg: the cpu-order structure
* buf: the disk-order buffer
*
* gfs2_xxx_out - write out an xxx struct
* first arg: the cpu-order structure
* buf: the disk-order buffer
*
* gfs2_xxx_print - print out an xxx struct
* first arg: the cpu-order structure
*/
void gfs2_inum_out(const struct gfs2_inode *ip, struct gfs2_dirent *dent)
{
dent->de_inum.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
dent->de_inum.no_addr = cpu_to_be64(ip->i_no_addr);
}
static void gfs2_meta_header_in(struct gfs2_meta_header_host *mh, const void *buf)
{
const struct gfs2_meta_header *str = buf;
mh->mh_magic = be32_to_cpu(str->mh_magic);
mh->mh_type = be32_to_cpu(str->mh_type);
mh->mh_format = be32_to_cpu(str->mh_format);
}
void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf)
{
const struct gfs2_sb *str = buf;
gfs2_meta_header_in(&sb->sb_header, buf);
sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
sb->sb_bsize = be32_to_cpu(str->sb_bsize);
sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr);
sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino);
sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr);
sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino);
memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
}
void gfs2_rindex_in(struct gfs2_rindex_host *ri, const void *buf)
{
const struct gfs2_rindex *str = buf;
ri->ri_addr = be64_to_cpu(str->ri_addr);
ri->ri_length = be32_to_cpu(str->ri_length);
ri->ri_data0 = be64_to_cpu(str->ri_data0);
ri->ri_data = be32_to_cpu(str->ri_data);
ri->ri_bitbytes = be32_to_cpu(str->ri_bitbytes);
}
void gfs2_rindex_print(const struct gfs2_rindex_host *ri)
{
printk(KERN_INFO " ri_addr = %llu\n", (unsigned long long)ri->ri_addr);
pv(ri, ri_length, "%u");
printk(KERN_INFO " ri_data0 = %llu\n", (unsigned long long)ri->ri_data0);
pv(ri, ri_data, "%u");
pv(ri, ri_bitbytes, "%u");
}
void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf)
{
const struct gfs2_rgrp *str = buf;
rg->rg_flags = be32_to_cpu(str->rg_flags);
rg->rg_free = be32_to_cpu(str->rg_free);
rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
}
void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf)
{
struct gfs2_rgrp *str = buf;
str->rg_flags = cpu_to_be32(rg->rg_flags);
str->rg_free = cpu_to_be32(rg->rg_free);
str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
str->__pad = cpu_to_be32(0);
str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
}
void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf)
{
const struct gfs2_quota *str = buf;
qu->qu_limit = be64_to_cpu(str->qu_limit);
qu->qu_warn = be64_to_cpu(str->qu_warn);
qu->qu_value = be64_to_cpu(str->qu_value);
}
void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf)
{
struct gfs2_quota *str = buf;
str->qu_limit = cpu_to_be64(qu->qu_limit);
str->qu_warn = cpu_to_be64(qu->qu_warn);
str->qu_value = cpu_to_be64(qu->qu_value);
memset(&str->qu_reserved, 0, sizeof(str->qu_reserved));
}
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
{
const struct gfs2_dinode_host *di = &ip->i_di;
struct gfs2_dinode *str = buf;
str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
str->di_header.mh_type = cpu_to_be32(GFS2_METATYPE_DI);
str->di_header.__pad0 = 0;
str->di_header.mh_format = cpu_to_be32(GFS2_FORMAT_DI);
str->di_header.__pad1 = 0;
str->di_num.no_addr = cpu_to_be64(ip->i_no_addr);
str->di_num.no_formal_ino = cpu_to_be64(ip->i_no_formal_ino);
str->di_mode = cpu_to_be32(ip->i_inode.i_mode);
str->di_uid = cpu_to_be32(ip->i_inode.i_uid);
str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
str->di_size = cpu_to_be64(di->di_size);
str->di_blocks = cpu_to_be64(di->di_blocks);
str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
str->di_ctime = cpu_to_be64(ip->i_inode.i_ctime.tv_sec);
str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
str->di_goal_data = cpu_to_be64(di->di_goal_data);
str->di_generation = cpu_to_be64(di->di_generation);
str->di_flags = cpu_to_be32(di->di_flags);
str->di_height = cpu_to_be16(di->di_height);
str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
!(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
GFS2_FORMAT_DE : 0);
str->di_depth = cpu_to_be16(di->di_depth);
str->di_entries = cpu_to_be32(di->di_entries);
str->di_eattr = cpu_to_be64(di->di_eattr);
}
void gfs2_dinode_print(const struct gfs2_inode *ip)
{
const struct gfs2_dinode_host *di = &ip->i_di;
printk(KERN_INFO " no_formal_ino = %llu\n", (unsigned long long)ip->i_no_formal_ino);
printk(KERN_INFO " no_addr = %llu\n", (unsigned long long)ip->i_no_addr);
printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size);
printk(KERN_INFO " di_blocks = %llu\n", (unsigned long long)di->di_blocks);
printk(KERN_INFO " di_goal_meta = %llu\n", (unsigned long long)di->di_goal_meta);
printk(KERN_INFO " di_goal_data = %llu\n", (unsigned long long)di->di_goal_data);
pv(di, di_flags, "0x%.8X");
pv(di, di_height, "%u");
pv(di, di_depth, "%u");
pv(di, di_entries, "%u");
printk(KERN_INFO " di_eattr = %llu\n", (unsigned long long)di->di_eattr);
}
void gfs2_log_header_in(struct gfs2_log_header_host *lh, const void *buf)
{
const struct gfs2_log_header *str = buf;
gfs2_meta_header_in(&lh->lh_header, buf);
lh->lh_sequence = be64_to_cpu(str->lh_sequence);
lh->lh_flags = be32_to_cpu(str->lh_flags);
lh->lh_tail = be32_to_cpu(str->lh_tail);
lh->lh_blkno = be32_to_cpu(str->lh_blkno);
lh->lh_hash = be32_to_cpu(str->lh_hash);
}
void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf)
{
const struct gfs2_inum_range *str = buf;
ir->ir_start = be64_to_cpu(str->ir_start);
ir->ir_length = be64_to_cpu(str->ir_length);
}
void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf)
{
struct gfs2_inum_range *str = buf;
str->ir_start = cpu_to_be64(ir->ir_start);
str->ir_length = cpu_to_be64(ir->ir_length);
}
void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf)
{
const struct gfs2_statfs_change *str = buf;
sc->sc_total = be64_to_cpu(str->sc_total);
sc->sc_free = be64_to_cpu(str->sc_free);
sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
}
void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf)
{
struct gfs2_statfs_change *str = buf;
str->sc_total = cpu_to_be64(sc->sc_total);
str->sc_free = cpu_to_be64(sc->sc_free);
str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
}
void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf)
{
const struct gfs2_quota_change *str = buf;
qc->qc_change = be64_to_cpu(str->qc_change);
qc->qc_flags = be32_to_cpu(str->qc_flags);
qc->qc_id = be32_to_cpu(str->qc_id);
}

10
fs/gfs2/ops_export.c
View File

@ -22,10 +22,18 @@
#include "glops.h"
#include "inode.h"
#include "ops_dentry.h"
#include "ops_export.h"
#include "ops_fstype.h"
#include "rgrp.h"
#include "util.h"
#define GFS2_SMALL_FH_SIZE 4
#define GFS2_LARGE_FH_SIZE 10
struct gfs2_fh_obj {
struct gfs2_inum_host this;
u32 imode;
};
static struct dentry *gfs2_decode_fh(struct super_block *sb,
__u32 *p,
int fh_len,

22
fs/gfs2/ops_export.h
View File

@ -1,22 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __OPS_EXPORT_DOT_H__
#define __OPS_EXPORT_DOT_H__
#define GFS2_SMALL_FH_SIZE 4
#define GFS2_LARGE_FH_SIZE 10
extern struct export_operations gfs2_export_ops;
struct gfs2_fh_obj {
struct gfs2_inum_host this;
__u32 imode;
};
#endif /* __OPS_EXPORT_DOT_H__ */

13
fs/gfs2/ops_fstype.c
View File

@ -27,7 +27,6 @@
#include "inode.h"
#include "lm.h"
#include "mount.h"
#include "ops_export.h"
#include "ops_fstype.h"
#include "ops_super.h"
#include "recovery.h"
@ -116,7 +115,6 @@ static void init_vfs(struct super_block *sb, unsigned noatime)
static int init_names(struct gfs2_sbd *sdp, int silent)
{
struct page *page;
char *proto, *table;
int error = 0;
@ -126,14 +124,9 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
/* Try to autodetect */
if (!proto[0] || !table[0]) {
struct gfs2_sb *sb;
page = gfs2_read_super(sdp->sd_vfs, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
if (!page)
return -ENOBUFS;
sb = kmap(page);
gfs2_sb_in(&sdp->sd_sb, sb);
kunmap(page);
__free_page(page);
error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
if (error)
return error;
error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
if (error)

1
fs/gfs2/ops_fstype.h
View File

@ -14,5 +14,6 @@
extern struct file_system_type gfs2_fs_type;
extern struct file_system_type gfs2meta_fs_type;
extern struct export_operations gfs2_export_ops;
#endif /* __OPS_FSTYPE_DOT_H__ */

4
fs/gfs2/ops_inode.c
View File

@ -206,7 +206,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
goto out_gunlock_q;
error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
al->al_rgd->rd_ri.ri_length +
al->al_rgd->rd_length +
2 * RES_DINODE + RES_STATFS +
RES_QUOTA, 0);
if (error)
@ -711,7 +711,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
goto out_gunlock_q;
error = gfs2_trans_begin(sdp, sdp->sd_max_dirres +
al->al_rgd->rd_ri.ri_length +
al->al_rgd->rd_length +
4 * RES_DINODE + 4 * RES_LEAF +
RES_STATFS + RES_QUOTA + 4, 0);
if (error)

2
fs/gfs2/ops_vm.c
View File

@ -66,7 +66,7 @@ static int alloc_page_backing(struct gfs2_inode *ip, struct page *page)
if (error)
goto out_gunlock_q;
error = gfs2_trans_begin(sdp, al->al_rgd->rd_ri.ri_length +
error = gfs2_trans_begin(sdp, al->al_rgd->rd_length +
ind_blocks + RES_DINODE +
RES_STATFS + RES_QUOTA, 0);
if (error)

42
fs/gfs2/quota.c
View File

@ -66,6 +66,18 @@
#define QUOTA_USER 1
#define QUOTA_GROUP 0
struct gfs2_quota_host {
u64 qu_limit;
u64 qu_warn;
s64 qu_value;
};
struct gfs2_quota_change_host {
u64 qc_change;
u32 qc_flags; /* GFS2_QCF_... */
u32 qc_id;
};
static u64 qd2offset(struct gfs2_quota_data *qd)
{
u64 offset;
@ -561,6 +573,25 @@ static void do_qc(struct gfs2_quota_data *qd, s64 change)
mutex_unlock(&sdp->sd_quota_mutex);
}
static void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf)
{
const struct gfs2_quota *str = buf;
qu->qu_limit = be64_to_cpu(str->qu_limit);
qu->qu_warn = be64_to_cpu(str->qu_warn);
qu->qu_value = be64_to_cpu(str->qu_value);
}
static void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf)
{
struct gfs2_quota *str = buf;
str->qu_limit = cpu_to_be64(qu->qu_limit);
str->qu_warn = cpu_to_be64(qu->qu_warn);
str->qu_value = cpu_to_be64(qu->qu_value);
memset(&str->qu_reserved, 0, sizeof(str->qu_reserved));
}
/**
* gfs2_adjust_quota
*
@ -694,7 +725,7 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
goto out_alloc;
error = gfs2_trans_begin(sdp,
al->al_rgd->rd_ri.ri_length +
al->al_rgd->rd_length +
num_qd * data_blocks +
nalloc * ind_blocks +
RES_DINODE + num_qd +
@ -1055,6 +1086,15 @@ int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id)
return error;
}
static void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf)
{
const struct gfs2_quota_change *str = buf;
qc->qc_change = be64_to_cpu(str->qc_change);
qc->qc_flags = be32_to_cpu(str->qc_flags);
qc->qc_id = be32_to_cpu(str->qc_id);
}
int gfs2_quota_init(struct gfs2_sbd *sdp)
{
struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);

22
fs/gfs2/recovery.c
View File

@ -116,6 +116,22 @@ void gfs2_revoke_clean(struct gfs2_sbd *sdp)
}
}
static int gfs2_log_header_in(struct gfs2_log_header_host *lh, const void *buf)
{
const struct gfs2_log_header *str = buf;
if (str->lh_header.mh_magic != cpu_to_be32(GFS2_MAGIC) ||
str->lh_header.mh_type != cpu_to_be32(GFS2_METATYPE_LH))
return 1;
lh->lh_sequence = be64_to_cpu(str->lh_sequence);
lh->lh_flags = be32_to_cpu(str->lh_flags);
lh->lh_tail = be32_to_cpu(str->lh_tail);
lh->lh_blkno = be32_to_cpu(str->lh_blkno);
lh->lh_hash = be32_to_cpu(str->lh_hash);
return 0;
}
/**
* get_log_header - read the log header for a given segment
* @jd: the journal
@ -147,12 +163,10 @@ static int get_log_header(struct gfs2_jdesc *jd, unsigned int blk,
sizeof(u32));
hash = crc32_le(hash, (unsigned char const *)&nothing, sizeof(nothing));
hash ^= (u32)~0;
gfs2_log_header_in(&lh, bh->b_data);
error = gfs2_log_header_in(&lh, bh->b_data);
brelse(bh);
if (lh.lh_header.mh_magic != GFS2_MAGIC ||
lh.lh_header.mh_type != GFS2_METATYPE_LH ||
lh.lh_blkno != blk || lh.lh_hash != hash)
if (error || lh.lh_blkno != blk || lh.lh_hash != hash)
return 1;
*head = lh;

111
fs/gfs2/rgrp.c
View File

@ -204,7 +204,7 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
struct gfs2_bitmap *bi = NULL;
u32 length = rgd->rd_ri.ri_length;
u32 length = rgd->rd_length;
u32 count[4], tmp;
int buf, x;
@ -227,7 +227,7 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
return;
}
tmp = rgd->rd_ri.ri_data -
tmp = rgd->rd_data -
rgd->rd_rg.rg_free -
rgd->rd_rg.rg_dinodes;
if (count[1] + count[2] != tmp) {
@ -253,10 +253,10 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
}
static inline int rgrp_contains_block(struct gfs2_rindex_host *ri, u64 block)
static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
{
u64 first = ri->ri_data0;
u64 last = first + ri->ri_data;
u64 first = rgd->rd_data0;
u64 last = first + rgd->rd_data;
return first <= block && block < last;
}
@ -275,7 +275,7 @@ struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk)
spin_lock(&sdp->sd_rindex_spin);
list_for_each_entry(rgd, &sdp->sd_rindex_mru_list, rd_list_mru) {
if (rgrp_contains_block(&rgd->rd_ri, blk)) {
if (rgrp_contains_block(rgd, blk)) {
list_move(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
spin_unlock(&sdp->sd_rindex_spin);
return rgd;
@ -354,6 +354,15 @@ void gfs2_clear_rgrpd(struct gfs2_sbd *sdp)
mutex_unlock(&sdp->sd_rindex_mutex);
}
static void gfs2_rindex_print(const struct gfs2_rgrpd *rgd)
{
printk(KERN_INFO " ri_addr = %llu\n", (unsigned long long)rgd->rd_addr);
printk(KERN_INFO " ri_length = %u\n", rgd->rd_length);
printk(KERN_INFO " ri_data0 = %llu\n", (unsigned long long)rgd->rd_data0);
printk(KERN_INFO " ri_data = %u\n", rgd->rd_data);
printk(KERN_INFO " ri_bitbytes = %u\n", rgd->rd_bitbytes);
}
/**
* gfs2_compute_bitstructs - Compute the bitmap sizes
* @rgd: The resource group descriptor
@ -367,7 +376,7 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
struct gfs2_bitmap *bi;
u32 length = rgd->rd_ri.ri_length; /* # blocks in hdr & bitmap */
u32 length = rgd->rd_length; /* # blocks in hdr & bitmap */
u32 bytes_left, bytes;
int x;
@ -378,7 +387,7 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
if (!rgd->rd_bits)
return -ENOMEM;
bytes_left = rgd->rd_ri.ri_bitbytes;
bytes_left = rgd->rd_bitbytes;
for (x = 0; x < length; x++) {
bi = rgd->rd_bits + x;
@ -399,14 +408,14 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
} else if (x + 1 == length) {
bytes = bytes_left;
bi->bi_offset = sizeof(struct gfs2_meta_header);
bi->bi_start = rgd->rd_ri.ri_bitbytes - bytes_left;
bi->bi_start = rgd->rd_bitbytes - bytes_left;
bi->bi_len = bytes;
/* other blocks */
} else {
bytes = sdp->sd_sb.sb_bsize -
sizeof(struct gfs2_meta_header);
bi->bi_offset = sizeof(struct gfs2_meta_header);
bi->bi_start = rgd->rd_ri.ri_bitbytes - bytes_left;
bi->bi_start = rgd->rd_bitbytes - bytes_left;
bi->bi_len = bytes;
}
@ -418,9 +427,9 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
return -EIO;
}
bi = rgd->rd_bits + (length - 1);
if ((bi->bi_start + bi->bi_len) * GFS2_NBBY != rgd->rd_ri.ri_data) {
if ((bi->bi_start + bi->bi_len) * GFS2_NBBY != rgd->rd_data) {
if (gfs2_consist_rgrpd(rgd)) {
gfs2_rindex_print(&rgd->rd_ri);
gfs2_rindex_print(rgd);
fs_err(sdp, "start=%u len=%u offset=%u\n",
bi->bi_start, bi->bi_len, bi->bi_offset);
}
@ -431,6 +440,7 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
}
/**
* gfs2_ri_total - Total up the file system space, according to the rindex.
*
*/
@ -439,7 +449,6 @@ u64 gfs2_ri_total(struct gfs2_sbd *sdp)
u64 total_data = 0;
struct inode *inode = sdp->sd_rindex;
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_rindex_host ri;
char buf[sizeof(struct gfs2_rindex)];
struct file_ra_state ra_state;
int error, rgrps;
@ -455,13 +464,23 @@ u64 gfs2_ri_total(struct gfs2_sbd *sdp)
sizeof(struct gfs2_rindex));
if (error != sizeof(struct gfs2_rindex))
break;
gfs2_rindex_in(&ri, buf);
total_data += ri.ri_data;
total_data += be32_to_cpu(((struct gfs2_rindex *)buf)->ri_data);
}
mutex_unlock(&sdp->sd_rindex_mutex);
return total_data;
}
static void gfs2_rindex_in(struct gfs2_rgrpd *rgd, const void *buf)
{
const struct gfs2_rindex *str = buf;
rgd->rd_addr = be64_to_cpu(str->ri_addr);
rgd->rd_length = be32_to_cpu(str->ri_length);
rgd->rd_data0 = be64_to_cpu(str->ri_data0);
rgd->rd_data = be32_to_cpu(str->ri_data);
rgd->rd_bitbytes = be32_to_cpu(str->ri_bitbytes);
}
/**
* read_rindex_entry - Pull in a new resource index entry from the disk
* @gl: The glock covering the rindex inode
@ -500,12 +519,12 @@ static int read_rindex_entry(struct gfs2_inode *ip,
list_add_tail(&rgd->rd_list, &sdp->sd_rindex_list);
list_add_tail(&rgd->rd_list_mru, &sdp->sd_rindex_mru_list);
gfs2_rindex_in(&rgd->rd_ri, buf);
gfs2_rindex_in(rgd, buf);
error = compute_bitstructs(rgd);
if (error)
return error;
error = gfs2_glock_get(sdp, rgd->rd_ri.ri_addr,
error = gfs2_glock_get(sdp, rgd->rd_addr,
&gfs2_rgrp_glops, CREATE, &rgd->rd_gl);
if (error)
return error;
@ -626,6 +645,28 @@ int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
return error;
}
static void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf)
{
const struct gfs2_rgrp *str = buf;
rg->rg_flags = be32_to_cpu(str->rg_flags);
rg->rg_free = be32_to_cpu(str->rg_free);
rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
}
static void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf)
{
struct gfs2_rgrp *str = buf;
str->rg_flags = cpu_to_be32(rg->rg_flags);
str->rg_free = cpu_to_be32(rg->rg_free);
str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
str->__pad = cpu_to_be32(0);
str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
}
/**
* gfs2_rgrp_bh_get - Read in a RG's header and bitmaps
* @rgd: the struct gfs2_rgrpd describing the RG to read in
@ -640,7 +681,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
struct gfs2_glock *gl = rgd->rd_gl;
unsigned int length = rgd->rd_ri.ri_length;
unsigned int length = rgd->rd_length;
struct gfs2_bitmap *bi;
unsigned int x, y;
int error;
@ -658,7 +699,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
for (x = 0; x < length; x++) {
bi = rgd->rd_bits + x;
error = gfs2_meta_read(gl, rgd->rd_ri.ri_addr + x, 0, &bi->bi_bh);
error = gfs2_meta_read(gl, rgd->rd_addr + x, 0, &bi->bi_bh);
if (error)
goto fail;
}
@ -720,7 +761,7 @@ void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd)
void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
int x, length = rgd->rd_ri.ri_length;
int x, length = rgd->rd_length;
spin_lock(&sdp->sd_rindex_spin);
gfs2_assert_warn(rgd->rd_sbd, rgd->rd_bh_count);
@ -743,7 +784,7 @@ void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd)
void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
{
struct gfs2_sbd *sdp = rgd->rd_sbd;
unsigned int length = rgd->rd_ri.ri_length;
unsigned int length = rgd->rd_length;
unsigned int x;
for (x = 0; x < length; x++) {
@ -826,7 +867,7 @@ static struct gfs2_rgrpd *recent_rgrp_first(struct gfs2_sbd *sdp,
goto first;
list_for_each_entry(rgd, &sdp->sd_rindex_recent_list, rd_recent) {
if (rgd->rd_ri.ri_addr == rglast)
if (rgd->rd_addr == rglast)
goto out;
}
@ -1037,7 +1078,7 @@ static int get_local_rgrp(struct gfs2_inode *ip)
}
out:
ip->i_last_rg_alloc = rgd->rd_ri.ri_addr;
ip->i_last_rg_alloc = rgd->rd_addr;
if (begin) {
recent_rgrp_add(rgd);
@ -1128,8 +1169,8 @@ unsigned char gfs2_get_block_type(struct gfs2_rgrpd *rgd, u64 block)
unsigned int buf;
unsigned char type;
length = rgd->rd_ri.ri_length;
rgrp_block = block - rgd->rd_ri.ri_data0;
length = rgd->rd_length;
rgrp_block = block - rgd->rd_data0;
for (buf = 0; buf < length; buf++) {
bi = rgd->rd_bits + buf;
@ -1171,7 +1212,7 @@ static u32 rgblk_search(struct gfs2_rgrpd *rgd, u32 goal,
unsigned char old_state, unsigned char new_state)
{
struct gfs2_bitmap *bi = NULL;
u32 length = rgd->rd_ri.ri_length;
u32 length = rgd->rd_length;
u32 blk = 0;
unsigned int buf, x;
@ -1247,9 +1288,9 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
return NULL;
}
length = rgd->rd_ri.ri_length;
length = rgd->rd_length;
rgrp_blk = bstart - rgd->rd_ri.ri_data0;
rgrp_blk = bstart - rgd->rd_data0;
while (blen--) {
for (buf = 0; buf < length; buf++) {
@ -1293,15 +1334,15 @@ u64 gfs2_alloc_data(struct gfs2_inode *ip)
u32 goal, blk;
u64 block;
if (rgrp_contains_block(&rgd->rd_ri, ip->i_di.di_goal_data))
goal = ip->i_di.di_goal_data - rgd->rd_ri.ri_data0;
if (rgrp_contains_block(rgd, ip->i_di.di_goal_data))
goal = ip->i_di.di_goal_data - rgd->rd_data0;
else
goal = rgd->rd_last_alloc_data;
blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
rgd->rd_last_alloc_data = blk;
block = rgd->rd_ri.ri_data0 + blk;
block = rgd->rd_data0 + blk;
ip->i_di.di_goal_data = block;
gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
@ -1337,15 +1378,15 @@ u64 gfs2_alloc_meta(struct gfs2_inode *ip)
u32 goal, blk;
u64 block;
if (rgrp_contains_block(&rgd->rd_ri, ip->i_di.di_goal_meta))
goal = ip->i_di.di_goal_meta - rgd->rd_ri.ri_data0;
if (rgrp_contains_block(rgd, ip->i_di.di_goal_meta))
goal = ip->i_di.di_goal_meta - rgd->rd_data0;
else
goal = rgd->rd_last_alloc_meta;
blk = rgblk_search(rgd, goal, GFS2_BLKST_FREE, GFS2_BLKST_USED);
rgd->rd_last_alloc_meta = blk;
block = rgd->rd_ri.ri_data0 + blk;
block = rgd->rd_data0 + blk;
ip->i_di.di_goal_meta = block;
gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
@ -1387,7 +1428,7 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
rgd->rd_last_alloc_meta = blk;
block = rgd->rd_ri.ri_data0 + blk;
block = rgd->rd_data0 + blk;
gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
rgd->rd_rg.rg_free--;

77
fs/gfs2/super.c
View File

@ -95,8 +95,8 @@ int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent)
{
unsigned int x;
if (sb->sb_header.mh_magic != GFS2_MAGIC ||
sb->sb_header.mh_type != GFS2_METATYPE_SB) {
if (sb->sb_magic != GFS2_MAGIC ||
sb->sb_type != GFS2_METATYPE_SB) {
if (!silent)
printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n");
return -EINVAL;
@ -174,10 +174,31 @@ static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error)
return 0;
}
static void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf)
{
const struct gfs2_sb *str = buf;
sb->sb_magic = be32_to_cpu(str->sb_header.mh_magic);
sb->sb_type = be32_to_cpu(str->sb_header.mh_type);
sb->sb_format = be32_to_cpu(str->sb_header.mh_format);
sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
sb->sb_bsize = be32_to_cpu(str->sb_bsize);
sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
sb->sb_master_dir.no_addr = be64_to_cpu(str->sb_master_dir.no_addr);
sb->sb_master_dir.no_formal_ino = be64_to_cpu(str->sb_master_dir.no_formal_ino);
sb->sb_root_dir.no_addr = be64_to_cpu(str->sb_root_dir.no_addr);
sb->sb_root_dir.no_formal_ino = be64_to_cpu(str->sb_root_dir.no_formal_ino);
memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
}
/**
* gfs2_read_super - Read the gfs2 super block from disk
* @sb: The VFS super block
* @sdp: The GFS2 super block
* @sector: The location of the super block
* @error: The error code to return
*
* This uses the bio functions to read the super block from disk
* because we want to be 100% sure that we never read cached data.
@ -189,17 +210,19 @@ static int end_bio_io_page(struct bio *bio, unsigned int bytes_done, int error)
* the master directory (contains pointers to journals etc) and the
* root directory.
*
* Returns: A page containing the sb or NULL
* Returns: 0 on success or error
*/
struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector)
{
struct super_block *sb = sdp->sd_vfs;
struct gfs2_sb *p;
struct page *page;
struct bio *bio;
page = alloc_page(GFP_KERNEL);
if (unlikely(!page))
return NULL;
return -ENOBUFS;
ClearPageUptodate(page);
ClearPageDirty(page);
@ -208,7 +231,7 @@ struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
bio = bio_alloc(GFP_KERNEL, 1);
if (unlikely(!bio)) {
__free_page(page);
return NULL;
return -ENOBUFS;
}
bio->bi_sector = sector * (sb->s_blocksize >> 9);
@ -222,9 +245,13 @@ struct page *gfs2_read_super(struct super_block *sb, sector_t sector)
bio_put(bio);
if (!PageUptodate(page)) {
__free_page(page);
return NULL;
return -EIO;
}
return page;
p = kmap(page);
gfs2_sb_in(&sdp->sd_sb, p);
kunmap(page);
__free_page(page);
return 0;
}
/**
@ -241,19 +268,13 @@ int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent)
u32 tmp_blocks;
unsigned int x;
int error;
struct page *page;
char *sb;
page = gfs2_read_super(sdp->sd_vfs, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
if (!page) {
error = gfs2_read_super(sdp, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift);
if (error) {
if (!silent)
fs_err(sdp, "can't read superblock\n");
return -EIO;
return error;
}
sb = kmap(page);
gfs2_sb_in(&sdp->sd_sb, sb);
kunmap(page);
__free_page(page);
error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
if (error)
@ -593,6 +614,24 @@ int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
return error;
}
static void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf)
{
const struct gfs2_statfs_change *str = buf;
sc->sc_total = be64_to_cpu(str->sc_total);
sc->sc_free = be64_to_cpu(str->sc_free);
sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
}
static void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf)
{
struct gfs2_statfs_change *str = buf;
str->sc_total = cpu_to_be64(sc->sc_total);
str->sc_free = cpu_to_be64(sc->sc_free);
str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
}
int gfs2_statfs_init(struct gfs2_sbd *sdp)
{
struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
@ -772,7 +811,7 @@ static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
struct gfs2_statfs_change_host *sc)
{
gfs2_rgrp_verify(rgd);
sc->sc_total += rgd->rd_ri.ri_data;
sc->sc_total += rgd->rd_data;
sc->sc_free += rgd->rd_rg.rg_free;
sc->sc_dinodes += rgd->rd_rg.rg_dinodes;
return 0;

2
fs/gfs2/super.h
View File

@ -16,7 +16,7 @@ void gfs2_tune_init(struct gfs2_tune *gt);
int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb_host *sb, int silent);
int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent);
struct page *gfs2_read_super(struct super_block *sb, sector_t sector);
int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector);
static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
{

2
fs/gfs2/util.c
View File

@ -137,7 +137,7 @@ int gfs2_consist_rgrpd_i(struct gfs2_rgrpd *rgd, int cluster_wide,
"GFS2: fsid=%s: RG = %llu\n"
"GFS2: fsid=%s: function = %s, file = %s, line = %u\n",
sdp->sd_fsname,
sdp->sd_fsname, (unsigned long long)rgd->rd_ri.ri_addr,
sdp->sd_fsname, (unsigned long long)rgd->rd_addr,
sdp->sd_fsname, function, file, line);
return rv;
}

127
include/linux/gfs2_ondisk.h
View File

@ -54,11 +54,6 @@ struct gfs2_inum {
__be64 no_addr;
};
struct gfs2_inum_host {
__u64 no_formal_ino;
__u64 no_addr;
};
/*
* Generic metadata head structure
* Every inplace buffer logged in the journal must start with this.
@ -87,12 +82,6 @@ struct gfs2_meta_header {
__be32 __pad1; /* Was incarnation number in gfs1 */
};
struct gfs2_meta_header_host {
__u32 mh_magic;
__u32 mh_type;
__u32 mh_format;
};
/*
* super-block structure
*
@ -132,23 +121,6 @@ struct gfs2_sb {
/* In gfs1, quota and license dinodes followed */
};
struct gfs2_sb_host {
struct gfs2_meta_header_host sb_header;
__u32 sb_fs_format;
__u32 sb_multihost_format;
__u32 sb_bsize;
__u32 sb_bsize_shift;
struct gfs2_inum_host sb_master_dir; /* Was jindex dinode in gfs1 */
struct gfs2_inum_host sb_root_dir;
char sb_lockproto[GFS2_LOCKNAME_LEN];
char sb_locktable[GFS2_LOCKNAME_LEN];
/* In gfs1, quota and license dinodes followed */
};
/*
* resource index structure
*/
@ -166,14 +138,6 @@ struct gfs2_rindex {
__u8 ri_reserved[64];
};
struct gfs2_rindex_host {
__u64 ri_addr; /* grp block disk address */
__u64 ri_data0; /* first data location */
__u32 ri_length; /* length of rgrp header in fs blocks */
__u32 ri_data; /* num of data blocks in rgrp */
__u32 ri_bitbytes; /* number of bytes in data bitmaps */
};
/*
* resource group header structure
*/
@ -205,13 +169,6 @@ struct gfs2_rgrp {
__u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */
};
struct gfs2_rgrp_host {
__u32 rg_flags;
__u32 rg_free;
__u32 rg_dinodes;
__u64 rg_igeneration;
};
/*
* quota structure
*/
@ -223,12 +180,6 @@ struct gfs2_quota {
__u8 qu_reserved[64];
};
struct gfs2_quota_host {
__u64 qu_limit;
__u64 qu_warn;
__u64 qu_value;
};
/*
* dinode structure
*/
@ -312,27 +263,6 @@ struct gfs2_dinode {
__u8 di_reserved[56];
};
struct gfs2_dinode_host {
__u64 di_size; /* number of bytes in file */
__u64 di_blocks; /* number of blocks in file */
/* This section varies from gfs1. Padding added to align with
* remainder of dinode
*/
__u64 di_goal_meta; /* rgrp to alloc from next */
__u64 di_goal_data; /* data block goal */
__u64 di_generation; /* generation number for NFS */
__u32 di_flags; /* GFS2_DIF_... */
__u16 di_height; /* height of metadata */
/* These only apply to directories */
__u16 di_depth; /* Number of bits in the table */
__u32 di_entries; /* The number of entries in the directory */
__u64 di_eattr; /* extended attribute block number */
};
/*
* directory structure - many of these per directory file
*/
@ -407,16 +337,6 @@ struct gfs2_log_header {
__be32 lh_hash;
};
struct gfs2_log_header_host {
struct gfs2_meta_header_host lh_header;
__u64 lh_sequence; /* Sequence number of this transaction */
__u32 lh_flags; /* GFS2_LOG_HEAD_... */
__u32 lh_tail; /* Block number of log tail */
__u32 lh_blkno;
__u32 lh_hash;
};
/*
* Log type descriptor
*/
@ -457,11 +377,6 @@ struct gfs2_inum_range {
__be64 ir_length;
};
struct gfs2_inum_range_host {
__u64 ir_start;
__u64 ir_length;
};
/*
* Statfs change
* Describes an change to the pool of free and allocated
@ -474,12 +389,6 @@ struct gfs2_statfs_change {
__be64 sc_dinodes;
};
struct gfs2_statfs_change_host {
__u64 sc_total;
__u64 sc_free;
__u64 sc_dinodes;
};
/*
* Quota change
* Describes an allocation change for a particular
@ -494,12 +403,6 @@ struct gfs2_quota_change {
__be32 qc_id;
};
struct gfs2_quota_change_host {
__u64 qc_change;
__u32 qc_flags; /* GFS2_QCF_... */
__u32 qc_id;
};
struct gfs2_quota_lvb {
__be32 qb_magic;
__u32 __pad;
@ -508,34 +411,4 @@ struct gfs2_quota_lvb {
__be64 qb_value; /* Current # blocks allocated */
};
#ifdef __KERNEL__
/* Translation functions */
struct gfs2_inode;
extern void gfs2_inum_out(const struct gfs2_inode *ip, struct gfs2_dirent *dent);
extern void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf);
extern void gfs2_rindex_in(struct gfs2_rindex_host *ri, const void *buf);
extern void gfs2_rindex_out(const struct gfs2_rindex_host *ri, void *buf);
extern void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf);
extern void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf);
extern void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf);
extern void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf);
struct gfs2_inode;
extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
extern void gfs2_ea_header_in(struct gfs2_ea_header *ea, const void *buf);
extern void gfs2_ea_header_out(const struct gfs2_ea_header *ea, void *buf);
extern void gfs2_log_header_in(struct gfs2_log_header_host *lh, const void *buf);
extern void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf);
extern void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf);
extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf);
extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf);
extern void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf);
/* Printing functions */
extern void gfs2_rindex_print(const struct gfs2_rindex_host *ri);
extern void gfs2_dinode_print(const struct gfs2_inode *ip);
#endif /* __KERNEL__ */
#endif /* __GFS2_ONDISK_DOT_H__ */