o5r/plan9port
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

cmd/venti/srv: split memory allocation call

Browse source 
This splits a certain vtmallocz call in mkihash into two vtmallocz
calls. The first issue this fixes is that the C aliasing rules were not
respected in the code before this commit. The other thing is that this
enables better memory alignment guarantees.

Updates #313

Change-Id: Ia4f3e0fc85facc778193f5e977d4f99a1a9abd23
This commit is contained in:
Neven Sajko 2020-01-07 17:17:39 +00:00 • committed by Dan Cross
parent 0b6b451b71
commit 386bd9cae4
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/cmd/venti/srv/icache.c
View file

@ -68,8 +68,8 @@ mkihash(int size1)
size <<= 1;
}
ih = vtmallocz(sizeof(IHash)+size*sizeof(ih->table[0]));
ih->table = (IEntry**)(ih+1);
ih = vtmallocz(sizeof(IHash));
ih->table = vtmallocz(size * sizeof(ih->table[0]));
ih->bits = bits;
ih->size = size;
return ih;