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writeback: remove .nonblocking and .encountered_congestion

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Remove two unused struct writeback_control fields:

	.encountered_congestion	(completely unused)
	.nonblocking		(never set, checked/showed in XFS,NFS/btrfs)

The .for_background check in nfs_write_inode() is also removed btw,
as .for_background implies WB_SYNC_NONE.

Reviewed-by: Jan Kara <jack@suse.cz>
Proposed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
This commit is contained in:
Wu Fengguang
2011-05-05 21:10:38 -06:00
parent b7a2441f99
commit 846d5a091b
4 changed files with 4 additions and 9 deletions
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3
fs/nfs/write.c
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@@ -1564,8 +1564,7 @@ int nfs_write_inode(struct inode *inode, struct writeback_control *wbc)
int status;
bool sync = true;
if (wbc->sync_mode == WB_SYNC_NONE || wbc->nonblocking ||
wbc->for_background)
if (wbc->sync_mode == WB_SYNC_NONE)
sync = false;
status = pnfs_layoutcommit_inode(inode, sync);