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| author | Greg Ungerer <gerg@snapgear.com> | 2005-09-02 10:42:52 +1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-02 00:57:31 -0700 |
| commit | 213b24c93b6c43d96973b9db453bf845c97bbe18 (patch) | |
| tree | d47aea7e40411d997392b1ce12cc82fd02908ec8 /fs | |
| parent | 03a002e783b71517a5203e681f84a2719e9cec0e (diff) | |
| download | lwn-213b24c93b6c43d96973b9db453bf845c97bbe18.tar.gz lwn-213b24c93b6c43d96973b9db453bf845c97bbe18.zip | |
[PATCH] uclinux: use MAP_PRIVATE when mmaping code regions in flat binary loader
Use MAP_PRIVATE when calling mmap to get memory for the code region.
The flat loader was using MAP_SHARED, but underlying changes to the
MMUless mmap means this is now wrong.
Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/binfmt_flat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index c8998dc66882..7974efa107bc 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -520,7 +520,7 @@ static int load_flat_file(struct linux_binprm * bprm, DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); down_write(¤t->mm->mmap_sem); - textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_SHARED, 0); + textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_PRIVATE, 0); up_write(¤t->mm->mmap_sem); if (!textpos || textpos >= (unsigned long) -4096) { if (!textpos) |