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| author |   Omar Sandoval <osandov@fb.com> | 2020-08-21 00:39:52 -0700 |
|---|---|---|
| committer |   David Sterba <dsterba@suse.com> | 2020-10-07 12:13:17 +0200 |
| commit | 8c7d9fe06f5bb87dce356dcc9ea7c003b529e6ba (patch) | |
| tree | 0a4f7cfc7e9671dd2c2a4b81a3b528bbbb91ea28 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | btrfs: send: get rid of i_size logic in send_write() (diff) | |
| download | wireguard-linux-8c7d9fe06f5bb87dce356dcc9ea7c003b529e6ba.tar.xz wireguard-linux-8c7d9fe06f5bb87dce356dcc9ea7c003b529e6ba.zip | |
btrfs: send: avoid copying file data
send_write() currently copies from the page cache to sctx->read_buf, and
then from sctx->read_buf to sctx->send_buf. Similarly, send_hole()
zeroes sctx->read_buf and then copies from sctx->read_buf to
sctx->send_buf. However, if we write the TLV header manually, we can
copy to sctx->send_buf directly and get rid of sctx->read_buf.
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions