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| author | Steffen Klassert <steffen.klassert@secunet.com> | 2010-07-07 15:30:10 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-07-14 20:29:28 +0800 |
| commit | 4c879170296174bde05cd1c643dac16594edee77 (patch) | |
| tree | 467afaa9ad1235caa110789621edb7726fdcb4cd /include/linux/padata.h | |
| parent | 7e3de7b1be6ce0643f60aed697070e2286db32cd (diff) | |
| download | linux-4c879170296174bde05cd1c643dac16594edee77.tar.gz linux-4c879170296174bde05cd1c643dac16594edee77.tar.bz2 linux-4c879170296174bde05cd1c643dac16594edee77.zip | |
padata: Check for valid padata instance on start
This patch introduces the PADATA_INVALID flag which is
checked on padata start. This will be used to mark a padata
instance as invalid, if the padata cpumask does not intersect
with the active cpumask. we change padata_start to return an
error if the PADATA_INVALID is set. Also we adapt the only
padata user, pcrypt to this change.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include/linux/padata.h')
| -rw-r--r-- | include/linux/padata.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/padata.h b/include/linux/padata.h index 8d8406246eef..e4c17f9b7c9e 100644 --- a/include/linux/padata.h +++ b/include/linux/padata.h @@ -126,6 +126,7 @@ struct padata_instance { u8 flags; #define PADATA_INIT 1 #define PADATA_RESET 2 +#define PADATA_INVALID 4 }; extern struct padata_instance *padata_alloc(const struct cpumask *cpumask, @@ -138,6 +139,6 @@ extern int padata_set_cpumask(struct padata_instance *pinst, cpumask_var_t cpumask); extern int padata_add_cpu(struct padata_instance *pinst, int cpu); extern int padata_remove_cpu(struct padata_instance *pinst, int cpu); -extern void padata_start(struct padata_instance *pinst); +extern int padata_start(struct padata_instance *pinst); extern void padata_stop(struct padata_instance *pinst); #endif |