Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

[safe/jmp/linux-2.6] / include / linux / msdos_fs.h

diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index 81fb9bc..81cd36b 100644 (file)
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -57,8 +57,6 @@
 #define MSDOS_DOT      ".          "   /* ".", padded to MSDOS_NAME chars */
 #define MSDOS_DOTDOT   "..         "   /* "..", padded to MSDOS_NAME chars */
 
-/* media of boot sector */
-#define FAT_VALID_MEDIA(x)     ((0xF8 <= (x) && (x) <= 0xFF) || (x) == 0xF0)
 #define FAT_FIRST_ENT(s, x)    ((MSDOS_SB(s)->fat_bits == 32 ? 0x0FFFFF00 : \
        MSDOS_SB(s)->fat_bits == 16 ? 0xFF00 : 0xF00) | (x))
 
@@ -233,6 +231,7 @@ struct msdos_sb_info {
        struct mutex fat_lock;
        unsigned int prev_free;      /* previously allocated cluster number */
        unsigned int free_clusters;  /* -1 if undefined */
+       unsigned int free_clus_valid; /* is free_clusters valid? */
        struct fat_mount_options options;
        struct nls_table *nls_disk;  /* Codepage used on disk */
        struct nls_table *nls_io;    /* Charset used for input and display */
@@ -329,6 +328,12 @@ static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len)
 #endif
 }
 
+/* media of boot sector */
+static inline int fat_valid_media(u8 media)
+{
+       return 0xf8 <= media || media == 0xf0;
+}
+
 /* fat/cache.c */
 extern void fat_cache_inval_inode(struct inode *inode);
 extern int fat_get_cluster(struct inode *inode, int cluster,