The patch titled
Subject: vmcore: modify vmcore clean-up function to free buffer on 2nd kernel
has been added to the -mm tree. Its filename is
vmcore-modify-vmcore-clean-up-function-to-free-buffer-on-2nd-kernel.patch
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------------------------------------------------------
From: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx>
Subject: vmcore: modify vmcore clean-up function to free buffer on 2nd kernel
If flag MEM_TYPE_CURRENT_KERNEL is set, the object is copied in some
buffer on the 2nd kernel, so clean-up funciton needs to free it.
Signed-off-by: HATAYAMA Daisuke <d.hatayama@xxxxxxxxxxxxxx>
Cc: Zhang Yanfei <zhangyanfei@xxxxxxxxxxxxxx>
Cc: Vivek Goyal <vgoyal@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/proc/vmcore.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN fs/proc/vmcore.c~vmcore-modify-vmcore-clean-up-function-to-free-buffer-on-2nd-kernel fs/proc/vmcore.c
--- a/fs/proc/vmcore.c~vmcore-modify-vmcore-clean-up-function-to-free-buffer-on-2nd-kernel
+++ a/fs/proc/vmcore.c
@@ -940,6 +940,10 @@ void vmcore_cleanup(void)
struct vmcore *m;
m = list_entry(pos, struct vmcore, list);
+
+ if (m->flag & MEM_TYPE_CURRENT_KERNEL)
+ free_pages((unsigned long)m->buf, get_order(m->size));
+
list_del(&m->list);
kfree(m);
}
_
Patches currently in -mm which might be from d.hatayama@xxxxxxxxxxxxxx are
vmcore-reference-e_phoff-member-explicitly-to-get-position-of-program-header-table.patch
vmcore-clean-up-by-removing-unnecessary-variable.patch
vmcore-rearrange-program-headers-without-assuming-consequtive-pt_note-entries.patch
vmcore-sysfs-export-elf-note-segment-size-instead-of-vmcoreinfo-data-size.patch
vmcore-allocate-buffer-for-elf-headers-on-page-size-alignment.patch
vmcore-round-up-buffer-size-of-elf-headers-by-page_size.patch
vmcore-procfs-introduce-a-flag-to-distinguish-objects-copied-in-2nd-kernel.patch
vmcore-copy-non-page-size-aligned-head-and-tail-pages-in-2nd-kernel.patch
vmcore-modify-vmcore-clean-up-function-to-free-buffer-on-2nd-kernel.patch
vmcore-clean-up-read_vmcore.patch
vmcore-read-buffers-for-vmcore-objects-copied-from-old-memory.patch
vmcore-allocate-per-cpu-crash_notes-objects-on-page-size-boundary.patch
kexec-allocate-vmcoreinfo-note-buffer-on-page-size-boundary.patch
kexec-elf-introduce-nt_vmcore_debuginfo-note-type.patch
elf-introduce-nt_vmcore_pad-type.patch
kexec-fill-note-buffers-by-nt_vmcore_pad-notes-in-page-size-boundary.patch
vmcore-check-nt_vmcore_pad-as-a-mark-indicating-the-end-of-elf-note-buffer.patch
vmcore-check-if-vmcore-objects-satify-mmaps-page-size-boundary-requirement.patch
vmcore-round-up-offset-of-vmcore-object-in-page-size-boundary.patch
vmcore-count-holes-generated-by-round-up-operation-for-vmcore-size.patch
vmcore-introduce-mmap_vmcore.patch
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