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[PATCH] uclinux: use MAP_PRIVATE when mmaping code regions in flat binary loader

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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>
This commit is contained in:
Greg Ungerer 2005-09-02 10:42:52 +10:00 committed by Linus Torvalds
parent 03a002e783
commit 213b24c93b
1 changed files with 1 additions and 1 deletions
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2
fs/binfmt_flat.c
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@ -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)