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kernel: do not inherit Proc.dot (current working directory) in kproc()

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making sure to close the dot in every kproc appears repetitive,
so instead stop inheriting the dot in kproc() as this is usually
never what you wanted in the first place.
This commit is contained in:
cinap_lenrek 2015-06-18 03:13:50 +02:00
parent b48078c12c
commit 58dc03cec0
4 changed files with 1 additions and 17 deletions
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2
sys/src/9/port/proc.c
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@ -1387,7 +1387,7 @@ kproc(char *name, void (*func)(void *), void *arg)
p->s = up->s;
p->nerrlab = 0;
p->slash = up->slash;
p->dot = up->dot;
p->dot = up->slash; /* unlike fork, do not inherit the dot for kprocs */
if(p->dot != nil)
incref(p->dot);

4
sys/src/9/port/segment.c
View file

@ -837,10 +837,6 @@ segmentioproc(void *arg)
incref(sio->s);
up->seg[sno] = sio->s;
cclose(up->dot);
up->dot = up->slash;
incref(up->dot);
while(waserror())
;
for(done = 0; !done;){

4
sys/src/9/port/swap.c
View file

@ -149,10 +149,6 @@ pager(void*)
Segment *s;
Proc *p, *ep;
cclose(up->dot);
up->dot = up->slash;
incref(up->dot);
p = proctab(0);
ep = &p[conf.nproc];

8
sys/src/9/zynq/screen.c
View file

@ -116,10 +116,6 @@ cursorproc(void *arg)
up->seg[i] = arg;
cclose(up->dot);
up->dot = up->slash;
incref(up->dot);
hwcursor.proc = up;
if(waserror()){
hwcursor.addr = 0;
@ -204,10 +200,6 @@ screenproc(void *arg)
up->seg[sno] = arg;
cclose(up->dot);
up->dot = up->slash;
incref(up->dot);
fbscreen.proc = up;
if(waserror()){
fbscreen.addr = 0;