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Btrfs: Lower contention on the csum mutex

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This takes the csum mutex deeper in the call chain and releases it
more often.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-08-15 15:34:18 -04:00
parent 4854ddd0ed
commit 53863232ef
4 changed files with 22 additions and 8 deletions
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2
fs/btrfs/inode.c
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@@ -415,10 +415,8 @@ static noinline int add_pending_csums(struct btrfs_trans_handle *trans,
btrfs_set_trans_block_group(trans, inode);
list_for_each(cur, list) {
sum = list_entry(cur, struct btrfs_ordered_sum, list);
mutex_lock(&BTRFS_I(inode)->csum_mutex);
btrfs_csum_file_blocks(trans, BTRFS_I(inode)->root,
inode, sum);
mutex_unlock(&BTRFS_I(inode)->csum_mutex);
}
return 0;
}