From: Alex Ainscow <aainscow@uk.ibm.com>
Date: Thu, 17 Apr 2025 21:51:51 +0000 (+0100)
Subject: osd: Use partial read path for fast_reads
X-Git-Tag: v20.1.0~68^2~17
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=df9b5e12b6817646d942c71152795cb7f737e41e;p=ceph.git

osd: Use partial read path for fast_reads

Previously fast reads had attempted to read entire stripes.  This is not necessary or desirable.

Signed-off-by: Alex Ainscow <aainscow@uk.ibm.com>
(cherry picked from commit 9ff7589c873d368cfa797acdd970278232a0c906)
---

diff --git a/src/osd/ECBackend.cc b/src/osd/ECBackend.cc
index a1821e11a4b90..1d4eed62849df 100644
--- a/src/osd/ECBackend.cc
+++ b/src/osd/ECBackend.cc
@@ -1622,7 +1622,7 @@ void ECBackend::objects_read_async(
   extent_set es;
   for (const auto &[read, ctx]: to_read) {
     pair<uint64_t, uint64_t> tmp;
-    if (!cct->_conf->osd_ec_partial_reads || fast_read) {
+    if (!cct->_conf->osd_ec_partial_reads) {
       tmp = sinfo.ro_offset_len_to_stripe_ro_offset_len(read.offset, read.size);
     } else {
       tmp.first = read.offset;