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authorChris Mason <chris.mason@oracle.com>2008-10-03 12:30:02 -0400
committerChris Mason <chris.mason@oracle.com>2008-10-03 12:30:02 -0400
commitcb843a6f513a1a91c54951005e60bd9b95bdf973 (patch)
tree12edfb1154691f1a8aaeeadb97899397574aa785 /fs/btrfs/transaction.c
parent323ac95bce442bbde514e3ce57e840402f80d909 (diff)
Btrfs: O_DIRECT writes via buffered writes + invaldiate
This reworks the btrfs O_DIRECT write code a bit. It had always fallen back to buffered IO and done an invalidate, but needed to be updated for the data=ordered code. The invalidate wasn't actually removing pages because they were still inside an ordered extent. This also combines the O_DIRECT/O_SYNC paths where possible, and kicks off IO in the main btrfs_file_write loop to keep the pipe down the the disk full as we process long writes. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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