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Btrfs: Throttle file_write when data=ordered is flushing the inode

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2008-04-25 08:51:48 -04:00
parent bce4eae986
commit 81d7ed29ff
6 changed files with 28 additions and 2 deletions
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fs/btrfs/ordered-data.c
+13
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@@ -269,3 +269,16 @@ int btrfs_del_ordered_inode(struct inode *inode)
return ret;
}
int btrfs_ordered_throttle(struct btrfs_root *root, struct inode *inode)
{
struct btrfs_transaction *cur = root->fs_info->running_transaction;
while(cur == root->fs_info->running_transaction &&
atomic_read(&BTRFS_I(inode)->ordered_writeback)) {
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)
congestion_wait(WRITE, HZ/20);
#else
blk_congestion_wait(WRITE, HZ/20);
#endif
}
return 0;
}