Reformat; simplify seq num check.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@1040 38d2e660-2303-0410-9eaa-f027e97ec537

diff --git a/fs/battfs.c b/fs/battfs.c
index 1b8bf92336f0f340a8c851765119cb93c5e97968..ab8075f5146b430cd4ee759ec159754ab80f2bff 100644 (file)
--- a/fs/battfs.c
+++ b/fs/battfs.c
@@ -174,7 +174,7 @@ static void movePages(struct BattFsSuper *disk, pgcnt_t src, int offset)
 
 /**
  * Insert \a page into page allocation array of \a disk, using \a filelen_table and
- * \a free_number to compure position.
+ * \a free_number to compute position.
  */
 static void insertFreePage(struct BattFsSuper *disk, pgoff_t *filelen_table, mark_t free_number, pgcnt_t page)
 {
@@ -269,7 +269,7 @@ bool battfs_init(struct BattFsSuper *disk)
                        /* Increase free space */
                        disk->free_bytes += disk->page_size - sizeof(BattFsPageHeader);
                        
-                       /* Check if putting mark to MARK_PAGE_VALID makes fcs correct */
+                       /* Check if setting mark to MARK_PAGE_VALID makes fcs correct */
                        mark_t old_mark = hdr.mark;
                        hdr.mark = MARK_PAGE_VALID;
                        rotating_init(&cks);
@@ -340,7 +340,7 @@ bool battfs_init(struct BattFsSuper *disk)
                                fill_t old_fill;
 
                                /* Fancy check to handle seq wraparound */
-                               #define HALF_SEQ ((1 << (sizeof(seq_t) * CPU_BITS_PER_CHAR)) / 2)
+                               #define HALF_SEQ (1 << ((sizeof(seq_t) * CPU_BITS_PER_CHAR) - 1))
                                if ((hdr.seq - hdr_old.seq) < HALF_SEQ)
                                {
                                        /* Actual header is newer than the previuos one */
@@ -379,7 +379,7 @@ bool battfs_init(struct BattFsSuper *disk)
                }
                else
                {
-                       /* Check if putting mark to MARK_PAGE_VALID makes fcs correct */
+                       /* Check if setting mark to MARK_PAGE_VALID makes fcs correct */
                        mark_t mark = hdr.mark;
                        hdr.mark = MARK_PAGE_VALID;
                        rotating_init(&cks);