mirror of https://gitee.com/openkylin/linux.git
GFS2: use memchr_inv
Use memchr_inv to verify that the specified memory range is cleared. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: cluster-devel@redhat.com Cc: Christine Caulfield <ccaulfie@redhat.com> Cc: David Teigland <teigland@redhat.com>
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@ -483,12 +483,8 @@ static void control_lvb_write(struct lm_lockstruct *ls, uint32_t lvb_gen,
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static int all_jid_bits_clear(char *lvb)
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{
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int i;
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for (i = JID_BITMAP_OFFSET; i < GDLM_LVB_SIZE; i++) {
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if (lvb[i])
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return 0;
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}
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return 1;
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return !memchr_inv(lvb + JID_BITMAP_OFFSET, 0,
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GDLM_LVB_SIZE - JID_BITMAP_OFFSET);
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}
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static void sync_wait_cb(void *arg)
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