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block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH

Browse source 
To avoid confusion between REQ_OP_FLUSH, which is handled by
request_fn drivers, and upper layers requesting the block layer
perform a flush sequence along with possibly a WRITE, this patch
renames REQ_FLUSH to REQ_PREFLUSH.

Signed-off-by: Mike Christie <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Mike Christie 2016-06-05 14:32:25 -05:00 • committed by Jens Axboe
commit 28a8f0d317
39 changed files with 102 additions and 98 deletions
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2
fs/jbd2/journal.c
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@ -1354,7 +1354,7 @@ static int jbd2_write_superblock(journal_t *journal, int write_flags)
trace_jbd2_write_superblock(journal, write_flags);
if (!(journal->j_flags & JBD2_BARRIER))
write_flags &= ~(REQ_FUA | REQ_FLUSH);
write_flags &= ~(REQ_FUA | REQ_PREFLUSH);
lock_buffer(bh);
if (buffer_write_io_error(bh)) {
/*