Adding debian version 4.19.249-2.debian/4.19.249-2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/debian/patches-rt/0220-x86-crypto-Reduce-preempt-disabled-regions.patch b/debian/patches-rt/0220-x86-crypto-Reduce-preempt-disabled-regions.patch
new file mode 100644
index 000000000..eeb0ae4e6
--- /dev/null
+++ b/debian/patches-rt/0220-x86-crypto-Reduce-preempt-disabled-regions.patch
@@ -0,0 +1,118 @@
+From 795856da132e0e41e6ba20d6020b7016f23159cf Mon Sep 17 00:00:00 2001
+From: Peter Zijlstra <peterz@infradead.org>
+Date: Mon, 14 Nov 2011 18:19:27 +0100
+Subject: [PATCH 220/347] x86: crypto: Reduce preempt disabled regions
+Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.246-rt110.tar.xz
+
+Restrict the preempt disabled regions to the actual floating point
+operations and enable preemption for the administrative actions.
+
+This is necessary on RT to avoid that kfree and other operations are
+called with preemption disabled.
+
+Reported-and-tested-by: Carsten Emde <cbe@osadl.org>
+Signed-off-by: Peter Zijlstra <peterz@infradead.org>
+
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+---
+ arch/x86/crypto/aesni-intel_glue.c | 22 ++++++++++++----------
+ 1 file changed, 12 insertions(+), 10 deletions(-)
+
+diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
+index 917f25e4d0a8..58d8c03fc32d 100644
+--- a/arch/x86/crypto/aesni-intel_glue.c
++++ b/arch/x86/crypto/aesni-intel_glue.c
+@@ -434,14 +434,14 @@ static int ecb_encrypt(struct skcipher_request *req)
+ 
+ 	err = skcipher_walk_virt(&walk, req, true);
+ 
+-	kernel_fpu_begin();
+ 	while ((nbytes = walk.nbytes)) {
++		kernel_fpu_begin();
+ 		aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ 			      nbytes & AES_BLOCK_MASK);
++		kernel_fpu_end();
+ 		nbytes &= AES_BLOCK_SIZE - 1;
+ 		err = skcipher_walk_done(&walk, nbytes);
+ 	}
+-	kernel_fpu_end();
+ 
+ 	return err;
+ }
+@@ -456,14 +456,14 @@ static int ecb_decrypt(struct skcipher_request *req)
+ 
+ 	err = skcipher_walk_virt(&walk, req, true);
+ 
+-	kernel_fpu_begin();
+ 	while ((nbytes = walk.nbytes)) {
++		kernel_fpu_begin();
+ 		aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ 			      nbytes & AES_BLOCK_MASK);
++		kernel_fpu_end();
+ 		nbytes &= AES_BLOCK_SIZE - 1;
+ 		err = skcipher_walk_done(&walk, nbytes);
+ 	}
+-	kernel_fpu_end();
+ 
+ 	return err;
+ }
+@@ -478,14 +478,14 @@ static int cbc_encrypt(struct skcipher_request *req)
+ 
+ 	err = skcipher_walk_virt(&walk, req, true);
+ 
+-	kernel_fpu_begin();
+ 	while ((nbytes = walk.nbytes)) {
++		kernel_fpu_begin();
+ 		aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ 			      nbytes & AES_BLOCK_MASK, walk.iv);
++		kernel_fpu_end();
+ 		nbytes &= AES_BLOCK_SIZE - 1;
+ 		err = skcipher_walk_done(&walk, nbytes);
+ 	}
+-	kernel_fpu_end();
+ 
+ 	return err;
+ }
+@@ -500,14 +500,14 @@ static int cbc_decrypt(struct skcipher_request *req)
+ 
+ 	err = skcipher_walk_virt(&walk, req, true);
+ 
+-	kernel_fpu_begin();
+ 	while ((nbytes = walk.nbytes)) {
++		kernel_fpu_begin();
+ 		aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ 			      nbytes & AES_BLOCK_MASK, walk.iv);
++		kernel_fpu_end();
+ 		nbytes &= AES_BLOCK_SIZE - 1;
+ 		err = skcipher_walk_done(&walk, nbytes);
+ 	}
+-	kernel_fpu_end();
+ 
+ 	return err;
+ }
+@@ -557,18 +557,20 @@ static int ctr_crypt(struct skcipher_request *req)
+ 
+ 	err = skcipher_walk_virt(&walk, req, true);
+ 
+-	kernel_fpu_begin();
+ 	while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
++		kernel_fpu_begin();
+ 		aesni_ctr_enc_tfm(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ 			              nbytes & AES_BLOCK_MASK, walk.iv);
++		kernel_fpu_end();
+ 		nbytes &= AES_BLOCK_SIZE - 1;
+ 		err = skcipher_walk_done(&walk, nbytes);
+ 	}
+ 	if (walk.nbytes) {
++		kernel_fpu_begin();
+ 		ctr_crypt_final(ctx, &walk);
++		kernel_fpu_end();
+ 		err = skcipher_walk_done(&walk, 0);
+ 	}
+-	kernel_fpu_end();
+ 
+ 	return err;
+ }
+-- 
+2.36.1
+