Merge branch 'linus' into cont_syslog

[safe/jmp/linux-2.6] / fs / jffs2 / jffs2_fs_sb.h

diff --git a/fs/jffs2/jffs2_fs_sb.h b/fs/jffs2/jffs2_fs_sb.h
index 4bcfb55..85ef6db 100644 (file)
--- a/fs/jffs2/jffs2_fs_sb.h
+++ b/fs/jffs2/jffs2_fs_sb.h
@@ -1,4 +1,13 @@
-/* $Id: jffs2_fs_sb.h,v 1.54 2005/09/21 13:37:34 dedekind Exp $ */
+/*
+ * JFFS2 -- Journalling Flash File System, Version 2.
+ *
+ * Copyright © 2001-2007 Red Hat, Inc.
+ *
+ * Created by David Woodhouse <dwmw2@infradead.org>
+ *
+ * For licensing information, see the file 'LICENCE' in this directory.
+ *
+ */
 
 #ifndef _JFFS2_FS_SB
 #define _JFFS2_FS_SB
@@ -7,7 +16,7 @@
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
 #include <linux/completion.h>
-#include <asm/semaphore.h>
+#include <linux/mutex.h>
 #include <linux/timer.h>
 #include <linux/wait.h>
 #include <linux/list.h>
@@ -35,7 +44,7 @@ struct jffs2_sb_info {
        struct completion gc_thread_start; /* GC thread start completion */
        struct completion gc_thread_exit; /* GC thread exit completion port */
 
-       struct semaphore alloc_sem;     /* Used to protect all the following
+       struct mutex alloc_sem;         /* Used to protect all the following
                                           fields, and also to protect against
                                           out-of-order writing of nodes. And GC. */
        uint32_t cleanmarker_size;      /* Size of an _inline_ CLEANMARKER
@@ -60,6 +69,8 @@ struct jffs2_sb_info {
        uint8_t resv_blocks_gctrigger;  /* ... wake up the GC thread */
        uint8_t resv_blocks_gcbad;      /* ... pick a block from the bad_list to GC */
        uint8_t resv_blocks_gcmerge;    /* ... merge pages when garbage collecting */
+       /* Number of 'very dirty' blocks before we trigger immediate GC */
+       uint8_t vdirty_blocks_gctrigger;
 
        uint32_t nospc_dirty_size;
 
@@ -76,6 +87,7 @@ struct jffs2_sb_info {
        struct list_head erasable_list;         /* Blocks which are completely dirty, and need erasing */
        struct list_head erasable_pending_wbuf_list;    /* Blocks which need erasing but only after the current wbuf is flushed */
        struct list_head erasing_list;          /* Blocks which are currently erasing */
+       struct list_head erase_checking_list;   /* Blocks which are being checked and marked */
        struct list_head erase_pending_list;    /* Blocks which need erasing now */
        struct list_head erase_complete_list;   /* Blocks which are erased and need the clean marker written to them */
        struct list_head free_list;             /* Blocks which are free and ready to be used */
@@ -93,28 +105,39 @@ struct jffs2_sb_info {
        /* Sem to allow jffs2_garbage_collect_deletion_dirent to
           drop the erase_completion_lock while it's holding a pointer
           to an obsoleted node. I don't like this. Alternatives welcomed. */
-       struct semaphore erase_free_sem;
+       struct mutex erase_free_sem;
 
        uint32_t wbuf_pagesize; /* 0 for NOR and other flashes with no wbuf */
 
+#ifdef CONFIG_JFFS2_FS_WBUF_VERIFY
+       unsigned char *wbuf_verify; /* read-back buffer for verification */
+#endif
 #ifdef CONFIG_JFFS2_FS_WRITEBUFFER
-       /* Write-behind buffer for NAND flash */
-       unsigned char *wbuf;
+       unsigned char *wbuf; /* Write-behind buffer for NAND flash */
        uint32_t wbuf_ofs;
        uint32_t wbuf_len;
        struct jffs2_inodirty *wbuf_inodes;
-
        struct rw_semaphore wbuf_sem;   /* Protects the write buffer */
 
-       /* Information about out-of-band area usage... */
-       struct nand_oobinfo *oobinfo;
-       uint32_t badblock_pos;
-       uint32_t fsdata_pos;
-       uint32_t fsdata_len;
+       unsigned char *oobbuf;
+       int oobavail; /* How many bytes are available for JFFS2 in OOB */
 #endif
 
        struct jffs2_summary *summary;          /* Summary information */
 
+#ifdef CONFIG_JFFS2_FS_XATTR
+#define XATTRINDEX_HASHSIZE    (57)
+       uint32_t highest_xid;
+       uint32_t highest_xseqno;
+       struct list_head xattrindex[XATTRINDEX_HASHSIZE];
+       struct list_head xattr_unchecked;
+       struct list_head xattr_dead_list;
+       struct jffs2_xattr_ref *xref_dead_list;
+       struct jffs2_xattr_ref *xref_temp;
+       struct rw_semaphore xattr_sem;
+       uint32_t xdatum_mem_usage;
+       uint32_t xdatum_mem_threshold;
+#endif
        /* OS-private pointer for getting back to master superblock info */
        void *os_priv;
 };