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nilfs2: super root size should change depending on inode size

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The size of super root structure depends on inode size, so
NILFS_SR_BYTES macro should be a function of the inode size.  This
fixes the issue.

Even though a different size value will be written for a possible
future filesystem with extended inode, but fortunately this does not
break disk format compatibility.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
This commit is contained in:
Ryusuke Konishi 2011-04-30 18:56:12 +09:00
parent 1cb2d38cb3
commit 6c6de1aa65
3 changed files with 6 additions and 3 deletions
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2
fs/nilfs2/segment.c
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@ -894,7 +894,7 @@ static void nilfs_segctor_fill_in_super_root(struct nilfs_sc_info *sci,
bh_sr = NILFS_LAST_SEGBUF(&sci->sc_segbufs)->sb_super_root;
raw_sr = (struct nilfs_super_root *)bh_sr->b_data;
raw_sr->sr_bytes = cpu_to_le16(NILFS_SR_BYTES);
raw_sr->sr_bytes = cpu_to_le16(NILFS_SR_BYTES(isz));
raw_sr->sr_nongc_ctime
= cpu_to_le64(nilfs_doing_gc() ?
nilfs->ns_nongc_ctime : sci->sc_seg_ctime);