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Message-Id: <20070322060301.DD1A6DE411@ozlabs.org> Date: Thu, 22 Mar 2007 17:01:27 +1100 From: Benjamin Herrenschmidt <benh@...nel.crashing.org> To: Linux Memory Management <linux-mm@...ck.org> CC: <linux-kernel@...r.kernel.org> Subject: [RFC/PATCH 11/15] get_unmapped_area handles MAP_FIXED on ramfs (nommu) Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org> --- fs/ramfs/file-nommu.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) Index: linux-cell/fs/ramfs/file-nommu.c =================================================================== --- linux-cell.orig/fs/ramfs/file-nommu.c 2007-03-22 16:18:27.000000000 +1100 +++ linux-cell/fs/ramfs/file-nommu.c 2007-03-22 16:20:14.000000000 +1100 @@ -238,7 +238,10 @@ unsigned long ramfs_nommu_get_unmapped_a struct page **pages = NULL, **ptr, *page; loff_t isize; - if (!(flags & MAP_SHARED)) + /* Deal with MAP_FIXED differently ? Forbid it ? Need help from some nommu + * folks there... --BenH. + */ + if ((flags & MAP_FIXED) || !(flags & MAP_SHARED)) return addr; /* the mapping mustn't extend beyond the EOF */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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