24d559cac4
The manual says that it is required and we actually have crash reports where loads see stale data due to not having membars here. In one case the networking does: memset(skb, 0, offsetof(struct sk_buff, truesize)); and then some code later checks skb->nohdr for zero, but it's still the value that was there before the memset(). Note that arch/sparc64/lib/xor.S already got this right. Signed-off-by: David S. Miller <davem@davemloft.net> |
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|---|---|---|
| .. | ||
| Makefile | ||
| NGbzero.S | ||
| NGcopy_from_user.S | ||
| NGcopy_to_user.S | ||
| NGmemcpy.S | ||
| NGpage.S | ||
| NGpatch.S | ||
| PeeCeeI.c | ||
| U1copy_from_user.S | ||
| U1copy_to_user.S | ||
| U1memcpy.S | ||
| U3copy_from_user.S | ||
| U3copy_to_user.S | ||
| U3memcpy.S | ||
| U3patch.S | ||
| VISsave.S | ||
| atomic.S | ||
| bitops.S | ||
| bzero.S | ||
| checksum.S | ||
| clear_page.S | ||
| copy_in_user.S | ||
| copy_page.S | ||
| csum_copy.S | ||
| csum_copy_from_user.S | ||
| csum_copy_to_user.S | ||
| delay.c | ||
| iomap.c | ||
| ipcsum.S | ||
| mcount.S | ||
| memcmp.S | ||
| memmove.S | ||
| memscan.S | ||
| rwsem.S | ||
| strlen.S | ||
| strlen_user.S | ||
| strncmp.S | ||
| strncpy_from_user.S | ||
| user_fixup.c | ||
| xor.S | ||