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| author | Gabor Juhos <juhosg@openwrt.org> | 2013-02-02 15:31:44 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2013-02-02 15:31:44 +0000 |
| commit | 4c223d7d4f8a325256bdcbcc602ea8662bde97c3 (patch) | |
| tree | a90701b8b368d486315fda46071a6140ed9e856d /target/linux/generic/files | |
| parent | 7c87d28054617405d591ef8f405b7ec06ef3bea5 (diff) | |
| download | upstream-4c223d7d4f8a325256bdcbcc602ea8662bde97c3.tar.gz upstream-4c223d7d4f8a325256bdcbcc602ea8662bde97c3.tar.bz2 upstream-4c223d7d4f8a325256bdcbcc602ea8662bde97c3.zip | |
generic: convert crypto-ocf from kernel_thread to kthread
recent kernels have finally stopped exporting kernel_thread, since a
deprecation circa 2006. This patch attempts to convert to the newer
kernel kthread API, particularly in random.c
[juhosg: remove randomproc variable, it is not required after the patch]
Signed-off-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 35456
Diffstat (limited to 'target/linux/generic/files')
| -rw-r--r-- | target/linux/generic/files/crypto/ocf/random.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/target/linux/generic/files/crypto/ocf/random.c b/target/linux/generic/files/crypto/ocf/random.c index a5f2f648c7..9fc070ed42 100644 --- a/target/linux/generic/files/crypto/ocf/random.c +++ b/target/linux/generic/files/crypto/ocf/random.c @@ -49,6 +49,7 @@ #include <linux/unistd.h> #include <linux/poll.h> #include <linux/random.h> +#include <linux/kthread.h> #include <cryptodev.h> #ifdef CONFIG_OCF_FIPS @@ -79,9 +80,9 @@ struct random_op { void *arg; }; +static struct task_struct *random_thread; static int random_proc(void *arg); -static pid_t randomproc = (pid_t) -1; static spinlock_t random_lock; /* @@ -141,12 +142,10 @@ crypto_rregister( spin_lock_irqsave(&random_lock, flags); list_add_tail(&rops->random_list, &random_ops); if (!started) { - randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES); - if (randomproc < 0) { - ret = randomproc; - printk("crypto: crypto_rregister cannot start random thread; " - "error %d", ret); - } else + random_thread = kthread_run(random_proc, NULL, "ocf-random"); + if (IS_ERR(random_thread)) + ret = PTR_ERR(random_thread); + else started = 1; } spin_unlock_irqrestore(&random_lock, flags); @@ -172,7 +171,7 @@ crypto_runregister_all(u_int32_t driverid) spin_lock_irqsave(&random_lock, flags); if (list_empty(&random_ops) && started) - kill_proc(randomproc, SIGKILL, 1); + kthread_stop(random_thread); spin_unlock_irqrestore(&random_lock, flags); return(0); } @@ -203,7 +202,6 @@ random_proc(void *arg) sprintf(current->comm, "ocf-random"); #else daemonize("ocf-random"); - allow_signal(SIGKILL); #endif (void) get_fs(); @@ -306,12 +304,11 @@ random_proc(void *arg) #endif } } - + kfree(buf); bad_alloc: spin_lock_irq(&random_lock); - randomproc = (pid_t) -1; started = 0; spin_unlock_irq(&random_lock); |