The patch titled
Get core dump code to work
has been added to the -mm tree. Its filename is
get-core-dump-code-to-work.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Get core dump code to work
From: Petr Vandrovec <petr@xxxxxxxxxxxxxx>
File based core dump code was broken by pipe changes - relative llseek
returns absolute file position on success, not relative one, so dump_seek()
always failed when invoked with non-zero current position.
Only success/failure can be tested with relative lseek, we have to trust
kernel that on success we've got right file offset. With this fix in place
Signed-off-by: Petr Vandrovec <petr@xxxxxxxxxxxxxx>
Cc: Daniel Jacobowitz <drow@xxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
fs/binfmt_elf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/binfmt_elf.c~get-core-dump-code-to-work fs/binfmt_elf.c
--- a/fs/binfmt_elf.c~get-core-dump-code-to-work
+++ a/fs/binfmt_elf.c
@@ -1152,7 +1152,7 @@ static int dump_write(struct file *file,
static int dump_seek(struct file *file, loff_t off)
{
if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
- if (file->f_op->llseek(file, off, 1) != off)
+ if (file->f_op->llseek(file, off, 1) < 0)
return 0;
} else {
char *buf = (char *)get_zeroed_page(GFP_KERNEL);
_
Patches currently in -mm which might be from petr@xxxxxxxxxxxxxx are
get-core-dump-code-to-work.patch
-
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