Messages in this thread Patch in this message | | | From | Nigel Cunningham <> | Subject | [Suspend2][ 10/35] [Suspend2] Parse filewriter signature. | Date | Tue, 27 Jun 2006 08:39:37 +1000 |
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Given a pointer to what we expect to be a filewriter signature, return whether it is unrecognised (-1), a file without an image (0) or a file with an image to resume from (1).
Signed-off-by: Nigel Cunningham <nigel@suspend2.net>
kernel/power/suspend_file.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/kernel/power/suspend_file.c b/kernel/power/suspend_file.c index 6851977..d5f0310 100644 --- a/kernel/power/suspend_file.c +++ b/kernel/power/suspend_file.c @@ -365,3 +365,23 @@ cleanup: target_storage_available = 0; } +int parse_signature(struct filewriter_header *header) +{ + int have_image = !memcmp(HaveImage, header->sig, sizeof(HaveImage) - 1); + int no_image_header = !memcmp(NoImage, header->sig, sizeof(NoImage) - 1); + + if (no_image_header) + return 0; + + if (!have_image) + return -1; + + if (header->resumed_before) + set_suspend_state(SUSPEND_RESUMED_BEFORE); + else + clear_suspend_state(SUSPEND_RESUMED_BEFORE); + + target_header_start = header->first_header_block; + return 1; +} + -- Nigel Cunningham nigel at suspend2 dot net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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