Changeset c0697c4c in mainline for kernel/generic/src/mm/backend_elf.c

Timestamp:

2007-12-16T18:45:48Z (17 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

2a3db79

Parents:

cb08279

Message:

Fix a bug in anonymous address space area sharing. Call the backend's share
function only if the source area is not already shared. Otherwise increment the
sh_info refcount. Without this fix, the kernel will try to recreate the pagemap
if three and more address space areas attempt to share the same data.

File:

• kernel/generic/src/mm/backend_elf.c (modified) (1 diff)

kernel/generic/src/mm/backend_elf.c

@@ -305 +305 @@
                          */
                         if (!(area->flags & AS_AREA_WRITE))
-                                if (base + count*PAGE_SIZE <= start_anon)
+                                if (base + count * PAGE_SIZE <= start_anon)
                                         continue;