Changeset 625 for trunk/kernel/syscalls/sys_display.c

Timestamp:

Apr 10, 2019, 10:09:39 AM (5 years ago)

Author:

alain

Message:

Fix a bug in the vmm_remove_vseg() function: the physical pages
associated to an user DATA vseg were released to the kernel when
the target process descriptor was in the reference cluster.
This physical pages release should be done only when the page
forks counter value is zero.
All other modifications are cosmetic.

File:

• trunk/kernel/syscalls/sys_display.c (modified) (3 diffs)

trunk/kernel/syscalls/sys_display.c

@@ -96 +96 @@
             // check string in user space
             error = vmm_get_vseg( process , (intptr_t)arg0 , &vseg );
-
             if( error )
             {
@@ -110 +109 @@
             // ckeck string length
             length = hal_strlen_from_uspace( string );
-
             if( length >= 512 )
             {
@@ -150 +148 @@
             // get extended pointer on process PID in cluster CXY
             xptr_t process_xp = cluster_get_process_from_pid_in_cxy( cxy , pid );
-
                 if( process_xp == XPTR_NULL )
             {