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bonefish+mmlr:

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* Add file descriptor and IO context tracing.
* Some minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@36272 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Michael Lotz
2010-04-14 21:38:08 +00:00
parent 18383104ce
commit 74fc3e9a8b
4 changed files with 342 additions and 7 deletions
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src/system/kernel/fs/vfs.cpp
+13 -5
View File
@@ -58,6 +58,7 @@
#include "fifo.h"
#include "IORequest.h"
#include "unused_vnodes.h"
#include "vfs_tracing.h"
#include "Vnode.h"
#include "../cache/vnode_store.h"
@@ -4740,17 +4741,18 @@ vfs_exec_io_context(io_context* context)
io_context*
vfs_new_io_context(io_context* parentContext, bool purgeCloseOnExec)
{
size_t tableSize;
struct io_context* context;
context = (io_context*)malloc(sizeof(struct io_context));
io_context* context = (io_context*)malloc(sizeof(io_context));
if (context == NULL)
return NULL;
memset(context, 0, sizeof(struct io_context));
TIOC(NewIOContext(context, parentContext));
memset(context, 0, sizeof(io_context));
context->ref_count = 1;
MutexLocker parentLocker;
size_t tableSize;
if (parentContext) {
parentLocker.SetTo(parentContext->io_mutex, false);
tableSize = parentContext->table_size;
@@ -4799,6 +4801,8 @@ vfs_new_io_context(io_context* parentContext, bool purgeCloseOnExec)
if (closeOnExec && purgeCloseOnExec)
continue;
TFD(InheritFD(context, i, descriptor, parentContext));
context->fds[i] = descriptor;
context->num_used_fds++;
atomic_add(&descriptor->ref_count, 1);
@@ -4835,6 +4839,8 @@ vfs_free_io_context(io_context* context)
{
uint32 i;
TIOC(FreeIOContext(context));
if (context->root)
put_vnode(context->root);
@@ -4881,6 +4887,8 @@ vfs_resize_fd_table(struct io_context* context, const int newSize)
if (newSize <= 0 || newSize > MAX_FD_TABLE_SIZE)
return EINVAL;
TIOC(ResizeIOContext(context, newSize));
MutexLocker _(context->io_mutex);
int oldSize = context->table_size;