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Filesystem: Use unprotected chain operations

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This area is protected by the IO library mutex.
This commit is contained in:
Sebastian Huber
2013-08-27 10:48:16 +02:00
parent 58a5889610
commit 4957272cb1
1 changed files with 9 additions and 6 deletions
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cpukit/libcsupport/src/mount-mgr.c
+9 -6
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@@ -41,6 +41,7 @@ bool rtems_filesystem_iterate(
void *routine_arg
)
{
rtems_chain_control *chain = &filesystem_chain;
const rtems_filesystem_table_t *table_entry = &rtems_filesystem_table [0];
rtems_chain_node *node = NULL;
bool stop = false;
@@ -53,8 +54,8 @@ bool rtems_filesystem_iterate(
if ( !stop ) {
rtems_libio_lock();
for (
node = rtems_chain_first( &filesystem_chain );
!rtems_chain_is_tail( &filesystem_chain, node ) && !stop;
node = rtems_chain_first( chain );
!rtems_chain_is_tail( chain, node ) && !stop;
node = rtems_chain_next( node )
) {
const filesystem_node *fsn = (filesystem_node *) node;
@@ -108,6 +109,7 @@ rtems_filesystem_register(
rtems_filesystem_fsmount_me_t mount_h
)
{
rtems_chain_control *chain = &filesystem_chain;
size_t type_size = strlen(type) + 1;
size_t fsn_size = sizeof( filesystem_node ) + type_size;
filesystem_node *fsn = malloc( fsn_size );
@@ -122,7 +124,7 @@ rtems_filesystem_register(
rtems_libio_lock();
if ( rtems_filesystem_get_mount_handler( type ) == NULL ) {
rtems_chain_append( &filesystem_chain, &fsn->node );
rtems_chain_append_unprotected( chain, &fsn->node );
} else {
rtems_libio_unlock();
free( fsn );
@@ -139,6 +141,7 @@ rtems_filesystem_unregister(
const char *type
)
{
rtems_chain_control *chain = &filesystem_chain;
rtems_chain_node *node = NULL;
if ( type == NULL ) {
@@ -147,14 +150,14 @@ rtems_filesystem_unregister(
rtems_libio_lock();
for (
node = rtems_chain_first( &filesystem_chain );
!rtems_chain_is_tail( &filesystem_chain, node );
node = rtems_chain_first( chain );
!rtems_chain_is_tail( chain, node );
node = rtems_chain_next( node )
) {
filesystem_node *fsn = (filesystem_node *) node;
if ( strcmp( fsn->entry.type, type ) == 0 ) {
rtems_chain_extract( node );
rtems_chain_extract_unprotected( node );
free( fsn );
rtems_libio_unlock();