diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2017-07-21 16:42:36 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-27 14:43:14 +0200 |
| commit | 2b72d8231e5fe355a85e51f522bbf0227106731f (patch) | |
| tree | fb465712d4e50c1095b19a45ed0c7e9c53115cb7 /crypto | |
| parent | 6cd73ad0a033847ee0cab2c6d33835d081fc0c4e (diff) | |
crypto: scompress - don't sleep with preemption disabled
commit 3c08377262880afc1621ab9cb6dbe7df47a6033d upstream.
Due to the use of per-CPU buffers, scomp_acomp_comp_decomp() executes
with preemption disabled, and so whether the CRYPTO_TFM_REQ_MAY_SLEEP
flag is set is irrelevant, since we cannot sleep anyway. So disregard
the flag, and use GFP_ATOMIC unconditionally.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto')
| -rw-r--r-- | crypto/scompress.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/crypto/scompress.c b/crypto/scompress.c index ae1d3cf209e4..0b40d991d65f 100644 --- a/crypto/scompress.c +++ b/crypto/scompress.c @@ -211,9 +211,7 @@ static int scomp_acomp_comp_decomp(struct acomp_req *req, int dir) scratch_dst, &req->dlen, *ctx); if (!ret) { if (!req->dst) { - req->dst = crypto_scomp_sg_alloc(req->dlen, - req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? - GFP_KERNEL : GFP_ATOMIC); + req->dst = crypto_scomp_sg_alloc(req->dlen, GFP_ATOMIC); if (!req->dst) goto out; } |