diff options
| author | asomers <asomers@FreeBSD.org> | 2016-12-16 20:10:55 +0000 |
|---|---|---|
| committer | asomers <asomers@FreeBSD.org> | 2016-12-16 20:10:55 +0000 |
| commit | 771f03f8a2c26a3126885f1dcd8321d191013ff4 (patch) | |
| tree | a2ebb4b1eb6112556e9f126c005a277c317c47f6 /contrib/netbsd-tests/lib/libc | |
| parent | f510da46a78eae2d3267ae1ea9be37877b0363cc (diff) | |
| download | FreeBSD-src-771f03f8a2c26a3126885f1dcd8321d191013ff4.zip FreeBSD-src-771f03f8a2c26a3126885f1dcd8321d191013ff4.tar.gz | |
MFC r308806
Speed up pw operations that edit /etc/group or /etc/passwd
r285050 fixed a bug in pw that could lead to /etc/passwd or /etc/group
corruption on power loss. However, it fixed it by opening those files with
O_SYNC, which is very slow, especially on ZFS. This change replaces O_SYNC
with appropriately placed fsync()s instead, which is much faster. Using a
ZFS tmpdir, the time to run pw's kyua tests drops from 245s to 35s.
Diffstat (limited to 'contrib/netbsd-tests/lib/libc')
0 files changed, 0 insertions, 0 deletions
