On Tue, 01 May 2007 15:47:19 +0100 Richard Purdie wrote:
> Allow selection of the compression mode for jffs2 via a sysfs
> attribute. This establishes a sysfs presence for jffs2 through
> which other compression options could easily be exported too.
>
> Signed-off-by: Richard Purdie <[email protected]>
> ---
> fs/Kconfig | 9 ++++++++
> fs/jffs2/compr.c | 41 ++++++++++++++++++++++++++++++++++++
> fs/jffs2/compr.h | 6 +++++
> fs/jffs2/super.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 117 insertions(+), 0 deletions(-)
>
> diff --git a/fs/Kconfig b/fs/Kconfig
> index 328a62f..9da136b 100644
> diff --git a/fs/jffs2/compr.c b/fs/jffs2/compr.c
> index fdb0efd..8c57dc7 100644
> --- a/fs/jffs2/compr.c
> +++ b/fs/jffs2/compr.c
> @@ -11,6 +11,7 @@
> *
> */
>
> +#include <linux/kobject.h>
is that used/needed in this source file?
> #include "compr.h"
>
> static DEFINE_SPINLOCK(jffs2_compressor_list_lock);
> @@ -296,6 +297,46 @@ int jffs2_unregister_compressor(struct jffs2_compressor *comp)
> return 0;
> }
>
> +#ifdef CONFIG_JFFS2_SYSFS
> +
> +char *jffs2_get_compression_mode_name(void)
> +{
> + switch (jffs2_compression_mode) {
> + case JFFS2_COMPR_MODE_NONE:
> + return "none";
> + case JFFS2_COMPR_MODE_PRIORITY:
> + return "priority";
> + case JFFS2_COMPR_MODE_SIZE:
> + return "size";
> + case JFFS2_COMPR_MODE_FAVOURLZO:
> + return "favourlzo";
> + }
> + return "unkown";
Lots of whitespace damage above (needs tabs).
> +}
> +
> +int jffs2_set_compression_mode_name(const char *name)
> +{
> + if (!strncmp("none", name, 4)) {
> + jffs2_compression_mode = JFFS2_COMPR_MODE_NONE;
> + return 0;
> + }
> + if (!strncmp("priority", name, 8)) {
> + jffs2_compression_mode = JFFS2_COMPR_MODE_PRIORITY;
> + return 0;
> + }
> + if (!strncmp("size", name, 4)) {
> + jffs2_compression_mode = JFFS2_COMPR_MODE_SIZE;
> + return 0;
> + }
> + if (!strncmp("favourlzo", name, 9)) {
> + jffs2_compression_mode = JFFS2_COMPR_MODE_FAVOURLZO;
> + return 0;
> + }
> + return -EINVAL;
Lots of tabs needed above also.
> +}
> +
> +#endif
> +
> void jffs2_free_comprbuf(unsigned char *comprbuf, unsigned char *orig)
> {
> if (orig != comprbuf)
---
~Randy
*** Remember to use Documentation/SubmitChecklist when testing your code ***
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