| Message ID | 20170721154238.21697-1-ard.biesheuvel@linaro.org |
|---|---|
| Headers | show |
| Series | crypto: scompress - defer allocation of percpu scratch buffers | expand |
On Fri, Jul 21, 2017 at 04:42:35PM +0100, Ard Biesheuvel wrote: > This is a followup to 'crypto: scompress - eliminate percpu scratch buffers', > which attempted to replace the scompress per-CPU buffer entirely, but as > Herbert pointed out, this is not going to fly in the targeted use cases. > > Instead, move the alloc/free of the buffers into the tfm init/exit hooks, > so that we only have the per-CPU buffers allocated if their are any > acomp ciphers of the right kind (i.e, ones that encapsulate a synchronous > implementation) in use (#3) > > Patches #1 and #2 are fixes for issues I spotted when working on this code. > > Ard Biesheuvel (3): > crypto: scompress - don't sleep with preemption disabled > crypto: scompress - free partially allocated scratch buffers on > failure > crypto: scompress - defer allocation of scratch buffer to first use All patches applied. Thanks. -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
This is a followup to 'crypto: scompress - eliminate percpu scratch buffers', which attempted to replace the scompress per-CPU buffer entirely, but as Herbert pointed out, this is not going to fly in the targeted use cases. Instead, move the alloc/free of the buffers into the tfm init/exit hooks, so that we only have the per-CPU buffers allocated if their are any acomp ciphers of the right kind (i.e, ones that encapsulate a synchronous implementation) in use (#3) Patches #1 and #2 are fixes for issues I spotted when working on this code. Ard Biesheuvel (3): crypto: scompress - don't sleep with preemption disabled crypto: scompress - free partially allocated scratch buffers on failure crypto: scompress - defer allocation of scratch buffer to first use crypto/scompress.c | 55 ++++++++------------ 1 file changed, 22 insertions(+), 33 deletions(-) -- 2.11.0