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authorGreg Ungerer <gerg@snapgear.com>2005-09-02 10:42:52 +1000
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-02 00:57:31 -0700
commit213b24c93b6c43d96973b9db453bf845c97bbe18 (patch)
treed47aea7e40411d997392b1ce12cc82fd02908ec8 /fs/binfmt_flat.c
parent03a002e783b71517a5203e681f84a2719e9cec0e (diff)
[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/binfmt_flat.c')
-rw-r--r--fs/binfmt_flat.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index c8998dc6688..7974efa107b 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(&current->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(&current->mm->mmap_sem);
if (!textpos || textpos >= (unsigned long) -4096) {
if (!textpos)