Commit ff40adf7 authored by Liu Bo's avatar Liu Bo Committed by David Sterba
Browse files

Btrfs: use the new helper wbc_to_write_flags 



This updates btrfs to use the helper wbc_to_write_flags which has been
applied in ext4/xfs/f2fs/block.

Please note that, with this, btrfs's dirty pages written by a
writeback job will carry the flag REQ_BACKGROUND, which is currently
used by writeback-throttle to determine whether it should go to get a
request or wait.

Signed-off-by: default avatarLiu Bo <bo.li.liu@oracle.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent db95c876

fs/btrfs/extent_io.c

+2 −3
Original line number Diff line number Diff line
@@ -3471,8 +3471,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc, 
	unsigned int write_flags = 0;

	unsigned long nr_written = 0;



	if (wbc->sync_mode == WB_SYNC_ALL)

		write_flags = REQ_SYNC;

	write_flags = wbc_to_write_flags(wbc);



	trace___extent_writepage(page, inode, wbc);
@@ -3718,7 +3717,7 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb, 
	unsigned long i, num_pages;

	unsigned long bio_flags = 0;

	unsigned long start, end;

	unsigned int write_flags = (epd->sync_io ? REQ_SYNC : 0) | REQ_META;

	unsigned int write_flags = wbc_to_write_flags(wbc) | REQ_META;

	int ret = 0;



	clear_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags);

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