From 5bb63ebdb6eaa20ca9347a3146ef1aa4ee543564 Mon Sep 17 00:00:00 2001 From: Jianjian Huo Date: Thu, 19 May 2016 15:11:33 -0700 Subject: [PATCH] os/bluestore/BlueFS: convert all read/write IO to direct IO. RocksDB is the sole user of BlueFS, after BlueFS uses direct IO, RocksDB will have to use its own block cache to cache raw data blocks. Signed-off-by: Jianjian Huo --- src/os/bluestore/BlueFS.cc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc index ff1dc71b9447..da0ff9a4c73c 100644 --- a/src/os/bluestore/BlueFS.cc +++ b/src/os/bluestore/BlueFS.cc @@ -738,7 +738,7 @@ int BlueFS::_read_random( } dout(20) << __func__ << " read buffered " << x_off << "~" << l << " of " << *p << dendl; - int r = bdev[p->bdev]->read_random(p->offset + x_off, l, out, true); + int r = bdev[p->bdev]->read_random(p->offset + x_off, l, out, false); assert(r == 0); off += l; len -= l; @@ -797,7 +797,7 @@ int BlueFS::_read( dout(20) << __func__ << " fetching " << x_off << "~" << l << " of " << *p << dendl; int r = bdev[p->bdev]->read(p->offset + x_off, l, &buf->bl, ioc[p->bdev], - true); + false); assert(r == 0); } left = buf->get_buf_remaining(off); @@ -1121,7 +1121,7 @@ int BlueFS::_flush_range(FileWriter *h, uint64_t offset, uint64_t length) h->tail_block.substr_of(bl, bl.length() - tail, tail); t.append_zero(super.block_size - tail); } - bdev[p->bdev]->aio_write(p->offset + x_off, t, h->iocv[p->bdev], true); + bdev[p->bdev]->aio_write(p->offset + x_off, t, h->iocv[p->bdev], false); bloff += x_len; length -= x_len; ++p; -- 2.47.3