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| author | Pekka Enberg <penberg@cs.helsinki.fi> | 2008-06-05 22:46:46 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-06-06 11:29:13 -0700 |
| commit | d100d148aa48df3b6ad526a48624f906695efe60 (patch) | |
| tree | 8ad38c91cca149b8a6b186c4808e30264e8fb106 /fs/binfmt_flat.c | |
| parent | 0842b245a8e6c14e3aa49f91018902591d1069b3 (diff) | |
| download | lwn-d100d148aa48df3b6ad526a48624f906695efe60.tar.gz lwn-d100d148aa48df3b6ad526a48624f906695efe60.zip | |
nommu: fix ksize() abuse
The nommu binfmt code uses ksize() for pointers returned from do_mmap()
which is wrong. This converts the call-sites to use the nommu specific
kobjsize() function which works as expected.
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Matt Mackall <mpm@selenic.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/binfmt_flat.c')
| -rw-r--r-- | fs/binfmt_flat.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 3b40d45a3a16..2cb1acda3a82 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -548,7 +548,7 @@ static int load_flat_file(struct linux_binprm * bprm, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0); /* Remap to use all availabe slack region space */ if (realdatastart && (realdatastart < (unsigned long)-4096)) { - reallen = ksize((void *)realdatastart); + reallen = kobjsize((void *)realdatastart); if (reallen > len) { realdatastart = do_mremap(realdatastart, len, reallen, MREMAP_FIXED, realdatastart); @@ -600,7 +600,7 @@ static int load_flat_file(struct linux_binprm * bprm, PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0); /* Remap to use all availabe slack region space */ if (textpos && (textpos < (unsigned long) -4096)) { - reallen = ksize((void *)textpos); + reallen = kobjsize((void *)textpos); if (reallen > len) { textpos = do_mremap(textpos, len, reallen, MREMAP_FIXED, textpos); @@ -683,7 +683,7 @@ static int load_flat_file(struct linux_binprm * bprm, */ current->mm->start_brk = datapos + data_len + bss_len; current->mm->brk = (current->mm->start_brk + 3) & ~3; - current->mm->context.end_brk = memp + ksize((void *) memp) - stack_len; + current->mm->context.end_brk = memp + kobjsize((void *) memp) - stack_len; } if (flags & FLAT_FLAG_KTRACE) @@ -790,7 +790,7 @@ static int load_flat_file(struct linux_binprm * bprm, /* zero the BSS, BRK and stack areas */ memset((void*)(datapos + data_len), 0, bss_len + - (memp + ksize((void *) memp) - stack_len - /* end brk */ + (memp + kobjsize((void *) memp) - stack_len - /* end brk */ libinfo->lib_list[id].start_brk) + /* start brk */ stack_len); |