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: Liu Bo <bo.li....@oracle.com>
---
fs/btrfs/extent_io.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a454a10..825fad6 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -3467,8 +3467,7 @@ static int __extent_writepage(struct page *page, struct
writeback_control *wbc,
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);
@@ -3713,7 +3712,7 @@ static noinline_for_stack int write_one_eb(struct
extent_buffer *eb,
u32 nritems;
unsigned long i, num_pages;
unsigned long start, end;
- int write_flags = (epd->sync_io ? REQ_SYNC : 0) | REQ_META;
+ int write_flags = wbc_to_write_flags(wbc) | REQ_META;
int ret = 0;
clear_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags);
--
2.9.4
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