From: Christian Ebner <c.ebner@proxmox.com>
To: pbs-devel@lists.proxmox.com
Subject: [pbs-devel] [PATCH proxmox-backup v5 12/19] chunk store: rename cache-specific helpers
Date: Tue, 11 Nov 2025 15:29:55 +0100 [thread overview]
Message-ID: <20251111143002.759901-13-c.ebner@proxmox.com> (raw)
In-Reply-To: <20251111143002.759901-1-c.ebner@proxmox.com>
From: Fabian Grünbichler <f.gruenbichler@proxmox.com>
to make it more explicit that these operate in cache context, and are not
generic helpers as the original names kind of imply.
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
Signed-off-by: Christian Ebner <c.ebner@proxmox.com>
---
pbs-datastore/src/chunk_store.rs | 4 ++--
pbs-datastore/src/local_datastore_lru_cache.rs | 6 +++---
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/pbs-datastore/src/chunk_store.rs b/pbs-datastore/src/chunk_store.rs
index a17c258a7..f5a77276d 100644
--- a/pbs-datastore/src/chunk_store.rs
+++ b/pbs-datastore/src/chunk_store.rs
@@ -699,7 +699,7 @@ impl ChunkStore {
/// for garbage collection. Returns with success also if chunk file is not pre-existing.
///
/// Safety: chunk store mutex must be held!
- pub(crate) unsafe fn clear_chunk(&self, digest: &[u8; 32]) -> Result<(), Error> {
+ pub(crate) unsafe fn replace_chunk_with_marker(&self, digest: &[u8; 32]) -> Result<(), Error> {
let (chunk_path, digest_str) = self.chunk_path(digest);
let mut create_options = CreateOptions::new();
if nix::unistd::Uid::effective().is_root() {
@@ -717,7 +717,7 @@ impl ChunkStore {
///
/// Callers must hold the per-chunk file lock in order to avoid races with renaming of corrupt
/// chunks by verifications and chunk inserts by backups.
- pub(crate) fn remove_chunk(&self, digest: &[u8; 32]) -> Result<(), Error> {
+ pub(crate) fn remove_chunk_marker(&self, digest: &[u8; 32]) -> Result<(), Error> {
let (chunk_path, _digest_str) = self.chunk_path(digest);
std::fs::remove_file(chunk_path).map_err(Error::from)
}
diff --git a/pbs-datastore/src/local_datastore_lru_cache.rs b/pbs-datastore/src/local_datastore_lru_cache.rs
index 8b2dbedfd..ae2215be1 100644
--- a/pbs-datastore/src/local_datastore_lru_cache.rs
+++ b/pbs-datastore/src/local_datastore_lru_cache.rs
@@ -42,7 +42,7 @@ impl LocalDatastoreLruCache {
}
self.cache.insert(*digest, (), |digest| {
// Safety: lock acquired above, this is executed inline!
- unsafe { self.store.clear_chunk(&digest) }
+ unsafe { self.store.replace_chunk_with_marker(&digest) }
})
}
@@ -59,7 +59,7 @@ impl LocalDatastoreLruCache {
/// Fails if the chunk cannot be deleted successfully.
pub(crate) unsafe fn remove(&self, digest: &[u8; 32]) -> Result<(), Error> {
self.cache.remove(*digest);
- self.store.remove_chunk(digest)
+ self.store.remove_chunk_marker(digest)
}
/// Access the locally cached chunk or fetch it from the S3 object store via the provided
@@ -80,7 +80,7 @@ impl LocalDatastoreLruCache {
let _lock = self.store.mutex().lock().unwrap();
self.cache.insert(*digest, (), |digest| {
// Safety: lock acquired above, this is executed inline
- unsafe { self.store.clear_chunk(&digest) }
+ unsafe { self.store.replace_chunk_with_marker(&digest) }
})?;
Ok(Some(chunk))
}
--
2.47.3
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next prev parent reply other threads:[~2025-11-11 14:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-11 14:29 [pbs-devel] [PATCH proxmox-backup v5 00/19] fix chunk upload/insert, rename corrupt chunks and GC race conditions for s3 backend Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 01/19] datastore: GC: drop overly verbose info message during s3 chunk sweep Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 02/19] chunk store: implement per-chunk file locking helper for s3 backend Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 03/19] datastore: acquire chunk store mutex lock when renaming corrupt chunk Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 04/19] datastore: get per-chunk file lock for chunk rename on s3 backend Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 05/19] fix #6961: datastore: verify: evict corrupt chunks from in-memory LRU cache Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 06/19] datastore: add locking to protect against races on chunk insert for s3 Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 07/19] GC: fix race with chunk upload/insert on s3 backends Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 08/19] chunk store: reduce exposure of clear_chunk() to crate only Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 09/19] chunk store: make chunk removal a helper method of the chunk store Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 10/19] store: split insert_chunk into wrapper + unsafe locked implementation Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 11/19] store: cache: move Mutex acquire to cache insertion Christian Ebner
2025-11-11 14:29 ` Christian Ebner [this message]
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 13/19] GC: cleanup chunk markers from cache in phase 3 on s3 backends Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 14/19] GC: touch bad chunk files independent of backend type Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 15/19] GC: guard missing marker file insertion for s3 backed stores Christian Ebner
2025-11-11 14:29 ` [pbs-devel] [PATCH proxmox-backup v5 16/19] GC: s3: track if a chunk marker file is missing since a bad chunk Christian Ebner
2025-11-11 14:30 ` [pbs-devel] [PATCH proxmox-backup v5 17/19] chunk store: add helpers marking missing local chunk markers as expected Christian Ebner
2025-11-11 14:30 ` [pbs-devel] [PATCH proxmox-backup v5 18/19] GC: assure chunk exists on s3 store when creating missing chunk marker Christian Ebner
2025-11-11 14:30 ` [pbs-devel] [PATCH proxmox-backup v5 19/19] datastore: document s3 backend specific locking restrictions Christian Ebner
2025-11-14 13:21 ` [pbs-devel] superseded: [PATCH proxmox-backup v5 00/19] fix chunk upload/insert, rename corrupt chunks and GC race conditions for s3 backend Christian Ebner
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