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From 3aa31813980d22719277a04797df48310acdff66 Mon Sep 17 00:00:00 2001
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From: Jonas Jelten <jj@sft.lol>
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Date: Mon, 15 Mar 2021 23:21:07 +0100
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Subject: [PATCH] os/bluestore: strip trailing slash for directory listings
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Calls to BlueRocksEnv::GetChildren may contain a trailing / in the
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queried directory, which is stripped away with this patch.
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If it's not stripped, the directory entry is not found in BlueFS:
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```
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10 bluefs readdir db/
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20 bluefs readdir dir db/ not found
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3 rocksdb: [db/db_impl/db_impl_open.cc:1785] Persisting Option File error: OK
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```
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Fixes: https://tracker.ceph.com/issues/49815
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Signed-off-by: Jonas Jelten <jj@sft.lol>
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---
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src/os/bluestore/BlueFS.cc | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/src/os/bluestore/BlueFS.cc b/src/os/bluestore/BlueFS.cc
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index ea39626aef..62b9d27f58 100644
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--- a/src/os/bluestore/BlueFS.cc
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+++ b/src/os/bluestore/BlueFS.cc
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@@ -3493,9 +3493,14 @@
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int BlueFS::readdir(const string& dirname, vector<string> *ls)
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{
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+ std::string dname = dirname;
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+ // dirname may contain a trailing /
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+ if (!dname.empty() && dname.back() == '/') {
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+ dname.pop_back();
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+ }
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std::lock_guard l(lock);
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- dout(10) << __func__ << " " << dirname << dendl;
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- if (dirname.empty()) {
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+ dout(10) << __func__ << " " << dname << dendl;
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+ if (dname.empty()) {
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// list dirs
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ls->reserve(dir_map.size() + 2);
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for (auto& q : dir_map) {
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@@ -3503,9 +3508,9 @@
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}
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} else {
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// list files in dir
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- map<string,DirRef>::iterator p = dir_map.find(dirname);
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+ map<string,DirRef>::iterator p = dir_map.find(dname);
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if (p == dir_map.end()) {
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- dout(20) << __func__ << " dir " << dirname << " not found" << dendl;
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+ dout(20) << __func__ << " dir " << dname << " not found" << dendl;
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return -ENOENT;
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}
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DirRef dir = p->second;
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--
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2.26.2
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