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Handle seq wrap.
author
batt
<batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Tue, 5 Feb 2008 14:27:32 +0000
(14:27 +0000)
committer
batt
<batt@38d2e660-2303-0410-9eaa-f027e97ec537>
Tue, 5 Feb 2008 14:27:32 +0000
(14:27 +0000)
git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1093
38d2e660
-2303-0410-9eaa-
f027e97ec537
fs/battfs.c
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diff --git
a/fs/battfs.c
b/fs/battfs.c
index 8289e91d245ee717f5dd9fd0a49398f4ae355e98..422ce9e69c5bd79ed42717cf66331b1f8ef77460 100644
(file)
--- a/
fs/battfs.c
+++ b/
fs/battfs.c
@@
-418,9
+418,8
@@
bool battfs_init(struct BattFsSuper *disk)
pgcnt_t new_page, old_page;
fill_t old_fill;
- /* Fancy check to handle seq wraparound */
- #define HALF_SEQ (1 << ((sizeof(seq_t) * CPU_BITS_PER_CHAR) - 1))
- if ((hdr.seq - hdr_old.seq) < HALF_SEQ)
+ /* Fancy check to handle seq wraparound (2 bits only) */
+ if (((hdr.seq - hdr_old.seq) & 0x03) < 2)
{
/* Current header is newer than the previuos one */
old_page = disk->page_array[array_pos];