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authorSteven Whitehouse <swhiteho@redhat.com>2006-11-01 10:34:15 -0500
committerSteven Whitehouse <swhiteho@redhat.com>2006-11-30 10:34:07 -0500
commitaf339c0241d0dd3b35f9097b4f4999bb22ffe502 (patch)
treec4c3e66de3c63b7a8205717bdf833dd567f6b746 /fs/gfs2
parent4cc14f0b88bf3e0b508143e091eb5a8dff3e3b9c (diff)
downloadop-kernel-dev-af339c0241d0dd3b35f9097b4f4999bb22ffe502.zip
op-kernel-dev-af339c0241d0dd3b35f9097b4f4999bb22ffe502.tar.gz
[GFS2] Shrink gfs2_inode (1) - di_header/di_num
The metadata header doesn't need to be stored in the incore struct gfs2_inode since its constant, and this patch removes it. Also, there is already a field for the inode's number in the struct gfs2_inode, so we don't need one in struct gfs2_dinode_host as well. This saves 28 bytes of space in the struct gfs2_inode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/inode.c25
-rw-r--r--fs/gfs2/ondisk.c22
2 files changed, 20 insertions, 27 deletions
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 4c5d286..7ba05fc 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -208,13 +208,18 @@ fail:
return ERR_PTR(error);
}
-static void gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
+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;
- gfs2_meta_header_in(&di->di_header, buf);
- gfs2_inum_in(&di->di_num, &str->di_num);
+ if (ip->i_num.no_addr != be64_to_cpu(str->di_num.no_addr)) {
+ if (gfs2_consist_inode(ip))
+ gfs2_dinode_print(ip);
+ return -EIO;
+ }
+ if (ip->i_num.no_formal_ino != be64_to_cpu(str->di_num.no_formal_ino))
+ return -ESTALE;
di->di_mode = be32_to_cpu(str->di_mode);
di->di_uid = be32_to_cpu(str->di_uid);
@@ -240,6 +245,7 @@ static void gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
di->di_entries = be32_to_cpu(str->di_entries);
di->di_eattr = be64_to_cpu(str->di_eattr);
+ return 0;
}
/**
@@ -263,21 +269,12 @@ int gfs2_inode_refresh(struct gfs2_inode *ip)
return -EIO;
}
- gfs2_dinode_in(ip, dibh->b_data);
+ error = gfs2_dinode_in(ip, dibh->b_data);
brelse(dibh);
-
- if (ip->i_num.no_addr != ip->i_di.di_num.no_addr) {
- if (gfs2_consist_inode(ip))
- gfs2_dinode_print(ip);
- return -EIO;
- }
- if (ip->i_num.no_formal_ino != ip->i_di.di_num.no_formal_ino)
- return -ESTALE;
-
ip->i_vn = ip->i_gl->gl_vn;
- return 0;
+ return error;
}
int gfs2_dinode_dealloc(struct gfs2_inode *ip)
diff --git a/fs/gfs2/ondisk.c b/fs/gfs2/ondisk.c
index 77bed44..4bc590e 100644
--- a/fs/gfs2/ondisk.c
+++ b/fs/gfs2/ondisk.c
@@ -56,7 +56,7 @@ static void gfs2_inum_print(const struct gfs2_inum_host *no)
printk(KERN_INFO " no_addr = %llu\n", (unsigned long long)no->no_addr);
}
-void gfs2_meta_header_in(struct gfs2_meta_header_host *mh, const void *buf)
+static void gfs2_meta_header_in(struct gfs2_meta_header_host *mh, const void *buf)
{
const struct gfs2_meta_header *str = buf;
@@ -74,13 +74,6 @@ static void gfs2_meta_header_out(const struct gfs2_meta_header_host *mh, void *b
str->mh_format = cpu_to_be32(mh->mh_format);
}
-static void gfs2_meta_header_print(const struct gfs2_meta_header_host *mh)
-{
- pv(mh, mh_magic, "0x%.8X");
- pv(mh, mh_type, "%u");
- pv(mh, mh_format, "%u");
-}
-
void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf)
{
const struct gfs2_sb *str = buf;
@@ -160,8 +153,13 @@ 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;
- gfs2_meta_header_out(&di->di_header, buf);
- gfs2_inum_out(&di->di_num, (char *)&str->di_num);
+ 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;
+
+ gfs2_inum_out(&ip->i_num, &str->di_num);
str->di_mode = cpu_to_be32(di->di_mode);
str->di_uid = cpu_to_be32(di->di_uid);
@@ -187,15 +185,13 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
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;
- gfs2_meta_header_print(&di->di_header);
- gfs2_inum_print(&di->di_num);
+ gfs2_inum_print(&ip->i_num);
pv(di, di_mode, "0%o");
pv(di, di_uid, "%u");
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