diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-03-03 05:26:09 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2019-03-03 05:26:09 +0100 |
| commit | a2c0e55e6885fde0d135831a77d227bc933d89e7 (patch) | |
| tree | 6fa25e1a63c4704ea32350d00868f990529de1c0 /sys | |
| parent | 5b972a9aea9383fbb66142a6a9958e01f7028a89 (diff) | |
qio: handle common case in trimblock()
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/src/9/port/qio.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sys/src/9/port/qio.c b/sys/src/9/port/qio.c index 710d6582e..08b489b67 100644 --- a/sys/src/9/port/qio.c +++ b/sys/src/9/port/qio.c @@ -243,7 +243,10 @@ trimblock(Block *bp, int offset, int len) Block *nb, *startb; QDEBUG checkb(bp, "trimblock 1"); - if(blocklen(bp) < offset+len) { + l = blocklen(bp); + if(offset == 0 && len == l) + return bp; + if(l < offset+len) { freeblist(bp); return nil; } |