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[PATCH] quota: ext3: Improve quota credit estimates

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Use improved credits estimates for quota operations.  Also reserve a space
for a quota operation in a transaction only if filesystem was mounted with
some quota options.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jan Kara
2005-06-23 22:01:04 -07:00
committed by Linus Torvalds
parent 4e5117ba0a
commit 1f54587bea
7 changed files with 60 additions and 36 deletions
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7
fs/ext3/inode.c
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@@ -128,7 +128,7 @@ static unsigned long blocks_for_truncate(struct inode *inode)
if (needed > EXT3_MAX_TRANS_DATA)
needed = EXT3_MAX_TRANS_DATA;
return EXT3_DATA_TRANS_BLOCKS + needed;
return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
}
/*
@@ -2763,7 +2763,8 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
/* (user+group)*(old+new) structure, inode write (sb,
* inode block, ? - but truncate inode update has it) */
handle = ext3_journal_start(inode, 4*EXT3_QUOTA_INIT_BLOCKS+3);
handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+
EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
if (IS_ERR(handle)) {
error = PTR_ERR(handle);
goto err_out;
@@ -2861,7 +2862,7 @@ static int ext3_writepage_trans_blocks(struct inode *inode)
#ifdef CONFIG_QUOTA
/* We know that structure was already allocated during DQUOT_INIT so
* we will be updating only the data blocks + inodes */
ret += 2*EXT3_QUOTA_TRANS_BLOCKS;
ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb);
#endif
return ret;