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daemon: Don't reply on 'st_blocks'.

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Ported by Ludovic Courtès <ludo@gnu.org>
from <a2c4fcd5e9>.

* nix/libstore/gc.cc (LocalStore::removeUnusedLinks): Use 'st.st_size'
instead of 'st.st_blocks * 512'.
* nix/libutil/util.cc (_deletePath): Likewise.
This commit is contained in:
Eelco Dolstra 2019-08-29 15:04:49 +02:00 committed by Ludovic Courtès
parent 7d09f2e85f
commit 546a709f20
No known key found for this signature in database
GPG Key ID: 090B11993D9AEBB5
2 changed files with 5 additions and 6 deletions
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9
nix/libstore/gc.cc
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@ -569,9 +569,8 @@ void LocalStore::removeUnusedLinks(const GCState & state)
throw SysError(format("statting `%1%'") % path);
if (st.st_nlink != 1) {
unsigned long long size = st.st_blocks * 512ULL;
actualSize += size;
unsharedSize += (st.st_nlink - 1) * size;
actualSize += st.st_size;
unsharedSize += (st.st_nlink - 1) * st.st_size;
continue;
}
@ -580,13 +579,13 @@ void LocalStore::removeUnusedLinks(const GCState & state)
if (unlink(path.c_str()) == -1)
throw SysError(format("deleting `%1%'") % path);
state.results.bytesFreed += st.st_blocks * 512;
state.results.bytesFreed += st.st_size;
}
struct stat st;
if (stat(linksDir.c_str(), &st) == -1)
throw SysError(format("statting `%1%'") % linksDir);
long long overhead = st.st_blocks * 512ULL;
long long overhead = st.st_size;
printMsg(lvlInfo, format("note: currently hard linking saves %.2f MiB")
% ((unsharedSize - actualSize - overhead) / (1024.0 * 1024.0)));

2
nix/libutil/util.cc
View File

@ -309,7 +309,7 @@ static void _deletePath(const Path & path, unsigned long long & bytesFreed)
struct stat st = lstat(path);
if (!S_ISDIR(st.st_mode) && st.st_nlink == 1)
bytesFreed += st.st_blocks * 512;
bytesFreed += st.st_size;
if (S_ISDIR(st.st_mode)) {
/* Make the directory writable. */