From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from firstgate.proxmox.com (firstgate.proxmox.com [IPv6:2a01:7e0:0:424::9]) by lore.proxmox.com (Postfix) with ESMTPS id 7EAFB1FF391 for ; Wed, 12 Jun 2024 15:17:02 +0200 (CEST) Received: from firstgate.proxmox.com (localhost [127.0.0.1]) by firstgate.proxmox.com (Proxmox) with ESMTP id 9796311610; Wed, 12 Jun 2024 15:17:36 +0200 (CEST) From: Christian Ebner To: pbs-devel@lists.proxmox.com Date: Wed, 12 Jun 2024 15:17:13 +0200 Message-Id: <20240612131713.133353-4-c.ebner@proxmox.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240612131713.133353-1-c.ebner@proxmox.com> References: <20240612131713.133353-1-c.ebner@proxmox.com> MIME-Version: 1.0 X-SPAM-LEVEL: Spam detection results: 0 AWL 0.027 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DMARC_MISSING 0.1 Missing DMARC policy KAM_DMARC_STATUS 0.01 Test Rule for DKIM or SPF Failure with Strict Alignment SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record T_SCC_BODY_TEXT_LINE -0.01 - Subject: [pbs-devel] [PATCH v4 proxmox-backup 3/3] client: pxar: fix fuse mount performance for split archives X-BeenThere: pbs-devel@lists.proxmox.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Proxmox Backup Server development discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Proxmox Backup Server development discussion Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: pbs-devel-bounces@lists.proxmox.com Sender: "pbs-devel" Adapt to the decoder/accessor method changes introduced in the pxar library, which were introduced in order to move the consistency check for metadata and payload data archives. The new location of the checks allows to access the pxar archive via a `Split` variant reader instance, without penalization when just accessing the metadata, not reading any payload data. This greatly improves performance when accessing fuse mounted archives. Signed-off-by: Christian Ebner --- changes since version 3: - adapt to dropped unsafe for `open_contents_at_range` pbs-client/src/pxar/extract.rs | 62 ++++++++++++++++------------------ pbs-pxar-fuse/src/lib.rs | 19 ++++++----- src/api2/tape/restore.rs | 2 +- 3 files changed, 41 insertions(+), 42 deletions(-) diff --git a/pbs-client/src/pxar/extract.rs b/pbs-client/src/pxar/extract.rs index 38d4ca89a..e1192c73f 100644 --- a/pbs-client/src/pxar/extract.rs +++ b/pbs-client/src/pxar/extract.rs @@ -373,26 +373,22 @@ where Ok(()) } } - (true, EntryKind::File { size, .. }) => { - let contents = self.decoder.contents(); - - if let Some(mut contents) = contents { - self.extractor.extract_file( - &file_name, - metadata, - *size, - &mut contents, - self.extractor - .overwrite_flags - .contains(OverwriteFlags::FILE), - ) - } else { - Err(format_err!( - "found regular file entry without contents in archive" - )) - } - .context(PxarExtractContext::ExtractFile) + (true, EntryKind::File { size, .. }) => match self.decoder.contents() { + Ok(Some(mut contents)) => self.extractor.extract_file( + &file_name, + metadata, + *size, + &mut contents, + self.extractor + .overwrite_flags + .contains(OverwriteFlags::FILE), + ), + Ok(None) => Err(format_err!( + "found regular file entry without contents in archive" + )), + Err(err) => Err(err.into()), } + .context(PxarExtractContext::ExtractFile), (false, _) => Ok(()), // skip this }; @@ -872,7 +868,8 @@ where match entry.kind() { EntryKind::File { .. } => { let size = decoder.content_size().unwrap_or(0); - tar_add_file(&mut tarencoder, decoder.contents(), size, metadata, path).await? + let contents = decoder.contents().await?; + tar_add_file(&mut tarencoder, contents, size, metadata, path).await? } EntryKind::Hardlink(link) => { if !link.data.is_empty() { @@ -894,14 +891,9 @@ where path } else { let size = decoder.content_size().unwrap_or(0); - tar_add_file( - &mut tarencoder, - decoder.contents(), - size, - metadata, - path, - ) - .await?; + let contents = decoder.contents().await?; + tar_add_file(&mut tarencoder, contents, size, metadata, path) + .await?; hardlinks.insert(realpath.to_owned(), path.to_owned()); continue; } @@ -1038,7 +1030,8 @@ where metadata.stat.mode as u16, true, ); - zip.add_entry(entry, decoder.contents()) + let contents = decoder.contents().await?; + zip.add_entry(entry, contents) .await .context("could not send file entry")?; } @@ -1056,7 +1049,8 @@ where metadata.stat.mode as u16, true, ); - zip.add_entry(entry, decoder.contents()) + let contents = decoder.contents().await?; + zip.add_entry(entry, contents) .await .context("could not send file entry")?; } @@ -1279,14 +1273,16 @@ where .with_context(|| format!("error at entry {file_name_os:?}"))?; } EntryKind::File { size, .. } => { + let mut contents = decoder + .contents() + .await? + .context("found regular file entry without contents in archive")?; extractor .async_extract_file( &file_name, metadata, *size, - &mut decoder - .contents() - .context("found regular file entry without contents in archive")?, + &mut contents, extractor.overwrite_flags.contains(OverwriteFlags::FILE), ) .await? diff --git a/pbs-pxar-fuse/src/lib.rs b/pbs-pxar-fuse/src/lib.rs index 780a4ddbe..4c26de200 100644 --- a/pbs-pxar-fuse/src/lib.rs +++ b/pbs-pxar-fuse/src/lib.rs @@ -5,7 +5,6 @@ use std::ffi::{OsStr, OsString}; use std::future::Future; use std::io; use std::mem; -use std::ops::Range; use std::os::unix::ffi::OsStrExt; use std::path::Path; use std::pin::Pin; @@ -20,7 +19,7 @@ use futures::sink::SinkExt; use futures::stream::{StreamExt, TryStreamExt}; use proxmox_io::vec; -use pxar::accessor::{self, EntryRangeInfo, ReadAt}; +use pxar::accessor::{self, ContentRange, EntryRangeInfo, ReadAt}; use proxmox_fuse::requests::{self, FuseRequest}; use proxmox_fuse::{EntryParam, Fuse, ReplyBufState, Request, ROOT_ID}; @@ -130,7 +129,7 @@ struct Lookup { inode: u64, parent: u64, entry_range_info: EntryRangeInfo, - content_range: Option>, + content_range: Option, } impl Lookup { @@ -138,7 +137,7 @@ impl Lookup { inode: u64, parent: u64, entry_range_info: EntryRangeInfo, - content_range: Option>, + content_range: Option, ) -> Box { Box::new(Self { refs: AtomicUsize::new(1), @@ -433,13 +432,17 @@ impl SessionImpl { } } - fn open_content(&self, lookup: &LookupRef) -> Result { + async fn open_content<'a>(&'a self, lookup: &'a LookupRef<'a>) -> Result { if is_dir_inode(lookup.inode) { io_return!(libc::EISDIR); } - match lookup.content_range.clone() { - Some(range) => Ok(unsafe { self.accessor.open_contents_at_range(range) }), + match &lookup.content_range { + Some(range) => self + .accessor + .open_contents_at_range(range) + .await + .map_err(|err| err.into()), None => io_return!(libc::EBADF), } } @@ -581,7 +584,7 @@ impl SessionImpl { async fn read(&self, inode: u64, len: usize, offset: u64) -> Result, Error> { let file = self.get_lookup(inode)?; - let content = self.open_content(&file)?; + let content = self.open_content(&file).await?; let mut buf = vec::undefined(len); let mut pos = 0; // fuse' read is different from normal read - no short reads allowed except for EOF! diff --git a/src/api2/tape/restore.rs b/src/api2/tape/restore.rs index 382909647..2b2025f6d 100644 --- a/src/api2/tape/restore.rs +++ b/src/api2/tape/restore.rs @@ -1748,7 +1748,7 @@ fn try_restore_snapshot_archive( } let filename = entry.file_name(); - let mut contents = match decoder.contents() { + let mut contents = match decoder.contents()? { None => bail!("missing file content"), Some(contents) => contents, }; -- 2.39.2 _______________________________________________ pbs-devel mailing list pbs-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pbs-devel