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authorBadari Pulavarty <pbadari@us.ibm.com>2005-06-25 14:55:42 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 16:24:39 -0700
commitb0cfbd995d091b10841eeb948976f5d1fbf13cdd (patch)
treea693416656084c99581c8ef6d2ca830b0cfe13a9 /scripts
parent8ae0b77811d97552b3b3c745e97de18849583bf7 (diff)
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[PATCH] fix for generic_file_write iov problem
Here is the fix for the problem described in http://bugzilla.kernel.org/show_bug.cgi?id=4721 Basically, problem is generic_file_buffered_write() is accessing beyond end of the iov[] vector after handling the last vector. If we happen to cross page boundary, we get a fault. I think this simple patch is good enough. If we really don't want to depend on the "count", then we need pass nr_segs to filemap_set_next_iovec() and decrement it and check it. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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