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This commit is contained in:
Bahadir Balban
2008-05-03 15:04:16 +01:00
parent 0557fa8910
commit 5efece98cd
2 changed files with 4 additions and 2 deletions
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4
tasks/mm0/src/file.c
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@@ -645,7 +645,9 @@ int sys_write(l4id_t sender, int fd, void *buf, int count)
* of this change when the file is flushed (e.g. via fflush() * of this change when the file is flushed (e.g. via fflush()
* or close()) * or close())
*/ */
vmfile->length += count; if (task->fd[fd].cursor + count > vmfile->length)
vmfile->length = task->fd[fd].cursor + count;
task->fd[fd].cursor += count; task->fd[fd].cursor += count;
retval = count; retval = count;

2
tasks/mm0/src/pagers.c
View File

@@ -87,7 +87,7 @@ int file_page_out(struct vm_object *vm_obj, unsigned long page_offset)
/* Map the page to vfs task */ /* Map the page to vfs task */
l4_map(paddr, vaddr, 1, MAP_USR_RW_FLAGS, VFS_TID); l4_map(paddr, vaddr, 1, MAP_USR_RW_FLAGS, VFS_TID);
/* Syscall to vfs to read into the page. */ /* Syscall to vfs to write page back to file. */
if ((err = vfs_write(vm_file_to_vnum(f), page_offset, 1, vaddr)) < 0) if ((err = vfs_write(vm_file_to_vnum(f), page_offset, 1, vaddr)) < 0)
goto out_err; goto out_err;