[PATCH 09/24] GFS2: Banish struct gfs2_dinode_host

From: swhiteho
Date: Wed Dec 17 2008 - 07:32:16 EST

From: Steven Whitehouse <swhiteho@xxxxxxxxxx>

The final field in gfs2_dinode_host was the i_flags field. Thats
renamed to i_diskflags in order to avoid confusion with the existing
inode flags, and moved into the inode proper at a suitable location
to avoid creating a "hole".

At that point struct gfs2_dinode_host is no longer needed and as
promised (quite some time ago!) it can now be removed completely.

Signed-off-by: Steven Whitehouse <swhiteho@xxxxxxxxxx>

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index b43aee7..789f28c 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1047,7 +1047,7 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
if (!error) {
ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
- ip->i_di.di_flags |= GFS2_DIF_TRUNC_IN_PROG;
+ ip->i_diskflags |= GFS2_DIF_TRUNC_IN_PROG;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
}
@@ -1120,7 +1120,7 @@ static int trunc_end(struct gfs2_inode *ip)
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
}
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
- ip->i_di.di_flags &= ~GFS2_DIF_TRUNC_IN_PROG;
+ ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG;

gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
diff --git a/fs/gfs2/dir.c b/fs/gfs2/dir.c
index d8d8232..b7c8e5c 100644
--- a/fs/gfs2/dir.c
+++ b/fs/gfs2/dir.c
@@ -36,7 +36,7 @@
* the block. In leaves, they begin at offset sizeof(struct gfs2_leaf) from the
* beginning of the leaf block. The dirents reside in leaves when
*
- * dip->i_di.di_flags & GFS2_DIF_EXHASH is true
+ * dip->i_diskflags & GFS2_DIF_EXHASH is true
*
* Otherwise, the dirents are "linear", within a single stuffed dinode block.
*
@@ -755,7 +755,7 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
struct gfs2_inode *ip = GFS2_I(inode);
int error;

- if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+ if (ip->i_diskflags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf;
unsigned hsize = 1 << ip->i_depth;
unsigned index;
@@ -907,7 +907,7 @@ static int dir_make_exhash(struct inode *inode)

dip->i_disksize = sdp->sd_sb.sb_bsize / 2;
gfs2_add_inode_blocks(&dip->i_inode, 1);
- dip->i_di.di_flags |= GFS2_DIF_EXHASH;
+ dip->i_diskflags |= GFS2_DIF_EXHASH;

for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
dip->i_depth = y;
@@ -1429,7 +1429,7 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
if (!dip->i_entries)
return 0;

- if (dip->i_di.di_flags & GFS2_DIF_EXHASH)
+ if (dip->i_diskflags & GFS2_DIF_EXHASH)
return dir_e_read(inode, offset, opaque, filldir);

if (!gfs2_is_stuffed(dip)) {
@@ -1612,7 +1612,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
dent = gfs2_init_dirent(inode, dent, name, bh);
gfs2_inum_out(nip, dent);
dent->de_type = cpu_to_be16(type);
- if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
+ if (ip->i_diskflags & GFS2_DIF_EXHASH) {
leaf = (struct gfs2_leaf *)bh->b_data;
be16_add_cpu(&leaf->lf_entries, 1);
}
@@ -1628,7 +1628,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
error = 0;
break;
}
- if (!(ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
+ if (!(ip->i_diskflags & GFS2_DIF_EXHASH)) {
error = dir_make_exhash(inode);
if (error)
break;
@@ -1691,7 +1691,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
}

dirent_del(dip, bh, prev, dent);
- if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+ if (dip->i_diskflags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf = (struct gfs2_leaf *)bh->b_data;
u16 entries = be16_to_cpu(leaf->lf_entries);
if (!entries)
@@ -1748,7 +1748,7 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
gfs2_inum_out(nip, dent);
dent->de_type = cpu_to_be16(new_type);

- if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
+ if (dip->i_diskflags & GFS2_DIF_EXHASH) {
brelse(bh);
error = gfs2_meta_inode_buffer(dip, &bh);
if (error)
diff --git a/fs/gfs2/eattr.c b/fs/gfs2/eattr.c
index 1c1e061..0d1c76d 100644
--- a/fs/gfs2/eattr.c
+++ b/fs/gfs2/eattr.c
@@ -118,7 +118,7 @@ static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
if (error)
return error;

- if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT)) {
+ if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {
error = ea_foreach_i(ip, bh, ea_call, data);
goto out;
}
@@ -935,7 +935,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
int error;
int mh_size = sizeof(struct gfs2_meta_header);

- if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
+ if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
__be64 *end;

error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,
@@ -974,7 +974,7 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
eablk = (__be64 *)(indbh->b_data + mh_size);
*eablk = cpu_to_be64(ip->i_eattr);
ip->i_eattr = blk;
- ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
+ ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;
gfs2_add_inode_blocks(&ip->i_inode, 1);

eablk++;
@@ -1015,7 +1015,7 @@ static int ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
if (error)
return error;

- if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT))
+ if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
blks++;
if (GFS2_EAREQ_SIZE_STUFFED(er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
blks += DIV_ROUND_UP(er->er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
@@ -1051,7 +1051,7 @@ int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
return error;

if (el.el_ea) {
- if (ip->i_di.di_flags & GFS2_DIF_APPENDONLY) {
+ if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
brelse(el.el_bh);
return -EPERM;
}
@@ -1388,7 +1388,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
if (bstart)
gfs2_free_meta(ip, bstart, blen);

- ip->i_di.di_flags &= ~GFS2_DIF_EA_INDIRECT;
+ ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;

error = gfs2_meta_inode_buffer(ip, &dibh);
if (!error) {
@@ -1479,7 +1479,7 @@ int gfs2_ea_dealloc(struct gfs2_inode *ip)
if (error)
goto out_rindex;

- if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
+ if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
error = ea_dealloc_indirect(ip);
if (error)
goto out_rindex;
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index c6c318c..848d64c 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -239,7 +239,7 @@ static int inode_go_lock(struct gfs2_holder *gh)
return error;
}

- if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) &&
+ if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
(gl->gl_state == LM_ST_EXCLUSIVE) &&
(gh->gh_state == LM_ST_EXCLUSIVE))
error = gfs2_truncatei_resume(ip);
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 4596cd2..6f67e75 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -233,9 +233,6 @@ enum {
GIF_USER = 4, /* user inode, not metadata addr space */
};

-struct gfs2_dinode_host {
- u32 di_flags; /* GFS2_DIF_... */
-};

struct gfs2_inode {
struct inode i_inode;
@@ -245,9 +242,6 @@ struct gfs2_inode {
u64 i_eattr;
loff_t i_disksize;
unsigned long i_flags; /* GIF_... */
-
- struct gfs2_dinode_host i_di; /* To be replaced by ref to block */
-
struct gfs2_glock *i_gl; /* Move into i_gh? */
struct gfs2_holder i_iopen_gh;
struct gfs2_holder i_gh; /* for prepare/commit_write only */
@@ -255,6 +249,7 @@ struct gfs2_inode {
u64 i_goal; /* goal block for allocations */
struct rw_semaphore i_rw_mutex;
u32 i_entries;
+ u32 i_diskflags;
u8 i_height;
u8 i_depth;
};
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 5651178..1e66fb7 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -247,7 +247,6 @@ fail:

static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
{
- struct gfs2_dinode_host *di = &ip->i_di;
const struct gfs2_dinode *str = buf;
struct timespec atime;
u16 height, depth;
@@ -288,7 +287,7 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
ip->i_goal = be64_to_cpu(str->di_goal_meta);
ip->i_generation = be64_to_cpu(str->di_generation);

- di->di_flags = be32_to_cpu(str->di_flags);
+ ip->i_diskflags = be32_to_cpu(str->di_flags);
gfs2_set_inode_flags(&ip->i_inode);
height = be16_to_cpu(str->di_height);
if (unlikely(height > GFS2_MAX_META_HEIGHT))
@@ -789,11 +788,11 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
di->di_flags = 0;

if (S_ISREG(mode)) {
- if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) ||
+ if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
gfs2_tune_get(sdp, gt_new_files_jdata))
di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
} else if (S_ISDIR(mode)) {
- di->di_flags |= cpu_to_be32(dip->i_di.di_flags &
+ di->di_flags |= cpu_to_be32(dip->i_diskflags &
GFS2_DIF_INHERIT_JDATA);
}

@@ -1241,7 +1240,6 @@ int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)

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);
@@ -1265,10 +1263,10 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
str->di_goal_data = cpu_to_be64(ip->i_goal);
str->di_generation = cpu_to_be64(ip->i_generation);

- str->di_flags = cpu_to_be32(di->di_flags);
+ str->di_flags = cpu_to_be32(ip->i_diskflags);
str->di_height = cpu_to_be16(ip->i_height);
str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
- !(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
+ !(ip->i_diskflags & GFS2_DIF_EXHASH) ?
GFS2_FORMAT_DE : 0);
str->di_depth = cpu_to_be16(ip->i_depth);
str->di_entries = cpu_to_be32(ip->i_entries);
@@ -1281,8 +1279,6 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)

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",
@@ -1293,7 +1289,7 @@ void gfs2_dinode_print(const struct gfs2_inode *ip)
(unsigned long long)gfs2_get_inode_blocks(&ip->i_inode));
printk(KERN_INFO " i_goal = %llu\n",
(unsigned long long)ip->i_goal);
- printk(KERN_INFO " di_flags = 0x%.8X\n", di->di_flags);
+ printk(KERN_INFO " i_diskflags = 0x%.8X\n", ip->i_diskflags);
printk(KERN_INFO " i_height = %u\n", ip->i_height);
printk(KERN_INFO " i_depth = %u\n", ip->i_depth);
printk(KERN_INFO " i_entries = %u\n", ip->i_entries);
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index c357790..d532936 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -20,7 +20,7 @@ static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)

static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
{
- return ip->i_di.di_flags & GFS2_DIF_JDATA;
+ return ip->i_diskflags & GFS2_DIF_JDATA;
}

static inline int gfs2_is_writeback(const struct gfs2_inode *ip)
diff --git a/fs/gfs2/ops_export.c b/fs/gfs2/ops_export.c
index 3a9b9b4..7fdeb14 100644
--- a/fs/gfs2/ops_export.c
+++ b/fs/gfs2/ops_export.c
@@ -213,7 +213,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
}

error = -EIO;
- if (GFS2_I(inode)->i_di.di_flags & GFS2_DIF_SYSTEM) {
+ if (GFS2_I(inode)->i_diskflags & GFS2_DIF_SYSTEM) {
iput(inode);
goto fail;
}
diff --git a/fs/gfs2/ops_file.c b/fs/gfs2/ops_file.c
index d7e649e..a6b7a73 100644
--- a/fs/gfs2/ops_file.c
+++ b/fs/gfs2/ops_file.c
@@ -157,8 +157,8 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
if (error)
return error;

- fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_di.di_flags);
- if (!S_ISDIR(inode->i_mode) && ip->i_di.di_flags & GFS2_DIF_JDATA)
+ fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_diskflags);
+ if (!S_ISDIR(inode->i_mode) && ip->i_diskflags & GFS2_DIF_JDATA)
fsflags |= FS_JOURNAL_DATA_FL;
if (put_user(fsflags, ptr))
error = -EFAULT;
@@ -171,17 +171,16 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
void gfs2_set_inode_flags(struct inode *inode)
{
struct gfs2_inode *ip = GFS2_I(inode);
- struct gfs2_dinode_host *di = &ip->i_di;
unsigned int flags = inode->i_flags;

flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
- if (di->di_flags & GFS2_DIF_IMMUTABLE)
+ if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
flags |= S_IMMUTABLE;
- if (di->di_flags & GFS2_DIF_APPENDONLY)
+ if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
flags |= S_APPEND;
- if (di->di_flags & GFS2_DIF_NOATIME)
+ if (ip->i_diskflags & GFS2_DIF_NOATIME)
flags |= S_NOATIME;
- if (di->di_flags & GFS2_DIF_SYNC)
+ if (ip->i_diskflags & GFS2_DIF_SYNC)
flags |= S_SYNC;
inode->i_flags = flags;
}
@@ -220,7 +219,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
if (error)
goto out_drop_write;

- flags = ip->i_di.di_flags;
+ flags = ip->i_diskflags;
new_flags = (flags & ~mask) | (reqflags & mask);
if ((new_flags ^ flags) == 0)
goto out;
@@ -259,7 +258,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
if (error)
goto out_trans_end;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
- ip->i_di.di_flags = new_flags;
+ ip->i_diskflags = new_flags;
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
gfs2_set_inode_flags(inode);
diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c
index b932d72..4987754 100644
--- a/fs/gfs2/ops_inode.c
+++ b/fs/gfs2/ops_inode.c
@@ -426,7 +426,7 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)

ip->i_inode.i_nlink = 2;
ip->i_disksize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
- ip->i_di.di_flags |= GFS2_DIF_JDATA;
+ ip->i_diskflags |= GFS2_DIF_JDATA;
ip->i_entries = 2;

error = gfs2_meta_inode_buffer(ip, &dibh);
diff --git a/fs/gfs2/ops_super.c b/fs/gfs2/ops_super.c
index aee6cba..ad36af2 100644
--- a/fs/gfs2/ops_super.c
+++ b/fs/gfs2/ops_super.c
@@ -496,7 +496,7 @@ static void gfs2_delete_inode(struct inode *inode)
goto out_truncate;

if (S_ISDIR(inode->i_mode) &&
- (ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
+ (ip->i_diskflags & GFS2_DIF_EXHASH)) {
error = gfs2_dir_exhash_dealloc(ip);
if (error)
goto out_unlock;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 188d0a2..228a465 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1013,7 +1013,7 @@ void gfs2_quota_change(struct gfs2_inode *ip, s64 change,

if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), change))
return;
- if (ip->i_di.di_flags & GFS2_DIF_SYSTEM)
+ if (ip->i_diskflags & GFS2_DIF_SYSTEM)
return;

for (x = 0; x < al->al_qd_num; x++) {
--
1.6.0.3

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