From 13046ece9625f96fafb0cff0b9b95a586b53b553 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 5 Oct 2013 18:08:47 -0400 Subject: [PATCH] binfmt_elf: convert writing actual dump pages to dump_emit() Signed-off-by: Al Viro --- fs/binfmt_elf.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index a998b221b53a..ddab40d3d828 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -2093,7 +2093,6 @@ static int elf_core_dump(struct coredump_params *cprm) offset += sizeof(*elf); /* Elf header */ offset += segs * sizeof(struct elf_phdr); /* Program headers */ - foffset = offset; /* Write notes phdr entry */ { @@ -2157,7 +2156,6 @@ static int elf_core_dump(struct coredump_params *cprm) goto end_coredump; size = cprm->written; - cprm->written = foffset; /* will disappear */ /* write out the notes section */ if (!write_note_info(&info, cprm)) goto end_coredump; @@ -2170,6 +2168,7 @@ static int elf_core_dump(struct coredump_params *cprm) if (!dump_seek(cprm->file, dataoff - foffset)) goto end_coredump; + cprm->written = size; for (vma = first_vma(current, gate_vma); vma != NULL; vma = next_vma(vma, gate_vma)) { unsigned long addr; @@ -2184,9 +2183,7 @@ static int elf_core_dump(struct coredump_params *cprm) page = get_dump_page(addr); if (page) { void *kaddr = kmap(page); - stop = ((size += PAGE_SIZE) > cprm->limit) || - !dump_write(cprm->file, kaddr, - PAGE_SIZE); + stop = !dump_emit(cprm, kaddr, PAGE_SIZE); kunmap(page); page_cache_release(page); } else @@ -2196,16 +2193,11 @@ static int elf_core_dump(struct coredump_params *cprm) } } - cprm->written = size; if (!elf_core_write_extra_data(cprm)) goto end_coredump; - size = cprm->written; if (e_phnum == PN_XNUM) { - size += sizeof(*shdr4extnum); - if (size > cprm->limit - || !dump_write(cprm->file, shdr4extnum, - sizeof(*shdr4extnum))) + if (!dump_emit(cprm, shdr4extnum, sizeof(*shdr4extnum))) goto end_coredump; } -- 2.30.2