tyler/proxmox-backup
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backup: use shared flock for base snapshot

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To allow other reading operations on the base snapshot as well. No
semantic changes with this patch alone, as all other locks on snapshots
are exclusive.

Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
This commit is contained in:
Stefan Reiter
2020-10-14 14:16:31 +02:00
committed by Dietmar Maurer
parent f153930066
commit 7d6c4c39e9
2 changed files with 23 additions and 3 deletions
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4
src/api2/backup.rs
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@ -16,7 +16,7 @@ use crate::backup::*;
use crate::api2::types::*;
use crate::config::acl::PRIV_DATASTORE_BACKUP;
use crate::config::cached_user_info::CachedUserInfo;
use crate::tools::fs::lock_dir_noblock;
use crate::tools::fs::lock_dir_noblock_shared;
mod environment;
use environment::*;
@ -144,7 +144,7 @@ async move {
// lock last snapshot to prevent forgetting/pruning it during backup
let full_path = datastore.snapshot_path(&last.backup_dir);
Some(lock_dir_noblock(&full_path, "snapshot", "base snapshot is already locked by another operation")?)
Some(lock_dir_noblock_shared(&full_path, "snapshot", "base snapshot is already locked by another operation")?)
} else {
None
};