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[PATCH] hfs: don't dirty unchanged inode

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If inode size hasn't changed, don't do anything further in truncate, which
also prevents a dirty inode, what might upset some readonly devices quite
badly.

Signed-off-by: Roman Zippel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Roman Zippel 2005-08-01 21:11:40 -07:00 • committed by Linus Torvalds
commit f76d28d235
2 changed files with 5 additions and 2 deletions
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3
fs/hfs/extent.c
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@ -482,7 +482,8 @@ void hfs_file_truncate(struct inode *inode)
page_cache_release(page);
mark_inode_dirty(inode);
return;
}
} else if (inode->i_size == HFS_I(inode)->phys_size)
return;
size = inode->i_size + HFS_SB(sb)->alloc_blksz - 1;
blk_cnt = size / HFS_SB(sb)->alloc_blksz;
alloc_cnt = HFS_I(inode)->alloc_blocks;