nixo
/
guix-devel
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

daemon: Do not error out when deduplication fails due to ENOSPC. 

This solves a problem whereby if /gnu/store/.links had enough entries,
ext4's directory index would be full, leading to link(2) returning
ENOSPC.

* nix/libstore/optimise-store.cc (LocalStore::optimisePath_): Upon
ENOSPC from link(2), print a message and return instead of throwing a
'SysError'.
This commit is contained in:
Ludovic Courtès 2016-10-28 20:34:15 +02:00
parent b1fd0ab734
commit 12b6c951cf
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
1 changed files with 18 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
nix/libstore/optimise-store.cc
View File

@ -148,10 +148,23 @@ void LocalStore::optimisePath_(OptimiseStats & stats, const Path & path, InodeHa
inodeHash.insert(st.st_ino); inodeHash.insert(st.st_ino);
return; return;
} }
if (errno != EEXIST)
throw SysError(format("cannot link `%1%' to `%2%'") % linkPath % path); switch (errno) {
case EEXIST:
/* Fall through if another process created ‘linkPath’ before /* Fall through if another process created ‘linkPath’ before
we did. */ we did. */
break;
case ENOSPC:
/* On ext4, that probably means the directory index is full. When
that happens, it's fine to ignore it: we just effectively
disable deduplication of this file. */
printMsg(lvlInfo, format("cannot link `%1%' to `%2%': %m") % linkPath % path);
return;
default:
throw SysError(format("cannot link `%1%' to `%2%'") % linkPath % path);
}
} }
/* Yes! We've seen a file with the same contents. Replace the /* Yes! We've seen a file with the same contents. Replace the