Merge branch 'ext3-latency-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-omap-h63xx.git] / include / linux / ext3_fs.h

diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index d14f029184832bd300ad7856c7cacbe467101c5d..634a5e5aba3e219844fbffadce72b0361c794203 100644 (file)
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -178,12 +178,37 @@ struct ext3_group_desc
 #define EXT3_FL_USER_VISIBLE           0x0003DFFF /* User visible flags */
 #define EXT3_FL_USER_MODIFIABLE                0x000380FF /* User modifiable flags */
 
+/* Flags that should be inherited by new inodes from their parent. */
+#define EXT3_FL_INHERITED (EXT3_SECRM_FL | EXT3_UNRM_FL | EXT3_COMPR_FL |\
+                          EXT3_SYNC_FL | EXT3_IMMUTABLE_FL | EXT3_APPEND_FL |\
+                          EXT3_NODUMP_FL | EXT3_NOATIME_FL | EXT3_COMPRBLK_FL|\
+                          EXT3_NOCOMPR_FL | EXT3_JOURNAL_DATA_FL |\
+                          EXT3_NOTAIL_FL | EXT3_DIRSYNC_FL)
+
+/* Flags that are appropriate for regular files (all but dir-specific ones). */
+#define EXT3_REG_FLMASK (~(EXT3_DIRSYNC_FL | EXT3_TOPDIR_FL))
+
+/* Flags that are appropriate for non-directories/regular files. */
+#define EXT3_OTHER_FLMASK (EXT3_NODUMP_FL | EXT3_NOATIME_FL)
+
+/* Mask out flags that are inappropriate for the given type of inode. */
+static inline __u32 ext3_mask_flags(umode_t mode, __u32 flags)
+{
+       if (S_ISDIR(mode))
+               return flags;
+       else if (S_ISREG(mode))
+               return flags & EXT3_REG_FLMASK;
+       else
+               return flags & EXT3_OTHER_FLMASK;
+}
+
 /*
  * Inode dynamic state flags
  */
 #define EXT3_STATE_JDATA               0x00000001 /* journaled data exists */
 #define EXT3_STATE_NEW                 0x00000002 /* inode is newly created */
 #define EXT3_STATE_XATTR               0x00000004 /* has in-inode xattrs */
+#define EXT3_STATE_FLUSH_ON_CLOSE      0x00000008
 
 /* Used to pass group descriptor data when online resize is done */
 struct ext3_new_group_input {
@@ -353,6 +378,13 @@ struct ext3_inode {
 #define        EXT3_ERROR_FS                   0x0002  /* Errors detected */
 #define        EXT3_ORPHAN_FS                  0x0004  /* Orphans being recovered */
 
+/*
+ * Misc. filesystem flags
+ */
+#define EXT2_FLAGS_SIGNED_HASH         0x0001  /* Signed dirhash in use */
+#define EXT2_FLAGS_UNSIGNED_HASH       0x0002  /* Unsigned dirhash in use */
+#define EXT2_FLAGS_TEST_FILESYS                0x0004  /* to test development code */
+
 /*
  * Mount flags
  */
@@ -489,7 +521,23 @@ struct ext3_super_block {
        __u16   s_reserved_word_pad;
        __le32  s_default_mount_opts;
        __le32  s_first_meta_bg;        /* First metablock block group */
-       __u32   s_reserved[190];        /* Padding to the end of the block */
+       __le32  s_mkfs_time;            /* When the filesystem was created */
+       __le32  s_jnl_blocks[17];       /* Backup of the journal inode */
+       /* 64bit support valid if EXT4_FEATURE_COMPAT_64BIT */
+/*150*/        __le32  s_blocks_count_hi;      /* Blocks count */
+       __le32  s_r_blocks_count_hi;    /* Reserved blocks count */
+       __le32  s_free_blocks_count_hi; /* Free blocks count */
+       __le16  s_min_extra_isize;      /* All inodes have at least # bytes */
+       __le16  s_want_extra_isize;     /* New inodes should reserve # bytes */
+       __le32  s_flags;                /* Miscellaneous flags */
+       __le16  s_raid_stride;          /* RAID stride */
+       __le16  s_mmp_interval;         /* # seconds to wait in MMP checking */
+       __le64  s_mmp_block;            /* Block for multi-mount protection */
+       __le32  s_raid_stripe_width;    /* blocks on all data disks (N*stride)*/
+       __u8    s_log_groups_per_flex;  /* FLEX_BG group size */
+       __u8    s_reserved_char_pad2;
+       __le16  s_reserved_pad;
+       __u32   s_reserved[162];        /* Padding to the end of the block */
 };
 
 #ifdef __KERNEL__
@@ -694,6 +742,9 @@ static inline __le16 ext3_rec_len_to_disk(unsigned len)
 #define DX_HASH_LEGACY         0
 #define DX_HASH_HALF_MD4       1
 #define DX_HASH_TEA            2
+#define DX_HASH_LEGACY_UNSIGNED        3
+#define DX_HASH_HALF_MD4_UNSIGNED      4
+#define DX_HASH_TEA_UNSIGNED           5
 
 #ifdef __KERNEL__
 
@@ -843,9 +894,8 @@ extern int ext3_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
                       u64 start, u64 len);
 
 /* ioctl.c */
-extern int ext3_ioctl (struct inode *, struct file *, unsigned int,
-                      unsigned long);
-extern long ext3_compat_ioctl (struct file *, unsigned int, unsigned long);
+extern long ext3_ioctl(struct file *, unsigned int, unsigned long);
+extern long ext3_compat_ioctl(struct file *, unsigned int, unsigned long);
 
 /* namei.c */
 extern int ext3_orphan_add(handle_t *, struct inode *);