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[GFS2] Shrink gfs2_inode (7) - di_payload_format 

This is almost never used. Its there for backward
compatibility with GFS1. It doesn't need its own
field since it can always be calculated from the
inode mode & flags. This saves a bit more space
in the gfs2_inode.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
This commit is contained in:
Steven Whitehouse 2006-11-01 20:09:14 -05:00
parent 1a7b1eed58
commit a9583c7983
5 changed files with 4 additions and 8 deletions
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1
fs/gfs2/dir.c
View File

@ -902,7 +902,6 @@ static int dir_make_exhash(struct inode *inode)
dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
dip->i_di.di_blocks++;
dip->i_di.di_flags |= GFS2_DIF_EXHASH;
dip->i_di.di_payload_format = 0;
for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
dip->i_di.di_depth = y;

3
fs/gfs2/inode.c
View File

@ -210,7 +210,6 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
di->di_generation = be64_to_cpu(str->di_generation);
di->di_flags = be32_to_cpu(str->di_flags);
di->di_payload_format = be32_to_cpu(str->di_payload_format);
di->di_height = be16_to_cpu(str->di_height);
di->di_depth = be16_to_cpu(str->di_depth);
@ -699,7 +698,7 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
}
di->__pad1 = 0;
di->di_payload_format = cpu_to_be32(0);
di->di_payload_format = cpu_to_be32(S_ISDIR(mode) ? GFS2_FORMAT_DE : 0);
di->di_height = cpu_to_be32(0);
di->__pad2 = 0;
di->__pad3 = 0;

6
fs/gfs2/ondisk.c
View File

@ -176,9 +176,10 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
str->di_generation = cpu_to_be64(di->di_generation);
str->di_flags = cpu_to_be32(di->di_flags);
str->di_payload_format = cpu_to_be32(di->di_payload_format);
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);
@ -197,7 +198,6 @@ void gfs2_dinode_print(const struct gfs2_inode *ip)
printk(KERN_INFO " di_goal_data = %llu\n", (unsigned long long)di->di_goal_data);
pv(di, di_flags, "0x%.8X");
pv(di, di_payload_format, "%u");
pv(di, di_height, "%u");
pv(di, di_depth, "%u");

1
fs/gfs2/ops_inode.c
View File

@ -389,7 +389,6 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
ip->i_inode.i_nlink = 2;
ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
ip->i_di.di_flags |= GFS2_DIF_JDATA;
ip->i_di.di_payload_format = GFS2_FORMAT_DE;
ip->i_di.di_entries = 2;
error = gfs2_meta_inode_buffer(ip, &dibh);

1
include/linux/gfs2_ondisk.h
View File

@ -333,7 +333,6 @@ struct gfs2_dinode_host {
__u64 di_generation; /* generation number for NFS */
__u32 di_flags; /* GFS2_DIF_... */
__u32 di_payload_format; /* GFS2_FORMAT_... */
__u16 di_height; /* height of metadata */
/* These only apply to directories */