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btrfs: Remove code referencing unused TRANS_USERSPACE
authorNikolay Borisov <nborisov@suse.com>
Mon, 5 Feb 2018 08:41:15 +0000 (10:41 +0200)
committerDavid Sterba <dsterba@suse.com>
Fri, 30 Mar 2018 23:26:51 +0000 (01:26 +0200)
Now that the userspace transaction ioctls have been removed,
TRANS_USERSPACE is no longer used hence we can remove it.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/transaction.c
fs/btrfs/transaction.h

index 17978fd..34efc97 100644 (file)
 
 static const unsigned int btrfs_blocked_trans_types[TRANS_STATE_MAX] = {
        [TRANS_STATE_RUNNING]           = 0U,
-       [TRANS_STATE_BLOCKED]           = (__TRANS_USERSPACE |
-                                          __TRANS_START),
-       [TRANS_STATE_COMMIT_START]      = (__TRANS_USERSPACE |
-                                          __TRANS_START |
-                                          __TRANS_ATTACH),
-       [TRANS_STATE_COMMIT_DOING]      = (__TRANS_USERSPACE |
-                                          __TRANS_START |
+       [TRANS_STATE_BLOCKED]           =  __TRANS_START,
+       [TRANS_STATE_COMMIT_START]      = (__TRANS_START | __TRANS_ATTACH),
+       [TRANS_STATE_COMMIT_DOING]      = (__TRANS_START |
                                           __TRANS_ATTACH |
                                           __TRANS_JOIN),
-       [TRANS_STATE_UNBLOCKED]         = (__TRANS_USERSPACE |
-                                          __TRANS_START |
+       [TRANS_STATE_UNBLOCKED]         = (__TRANS_START |
                                           __TRANS_ATTACH |
                                           __TRANS_JOIN |
                                           __TRANS_JOIN_NOLOCK),
-       [TRANS_STATE_COMPLETED]         = (__TRANS_USERSPACE |
-                                          __TRANS_START |
+       [TRANS_STATE_COMPLETED]         = (__TRANS_START |
                                           __TRANS_ATTACH |
                                           __TRANS_JOIN |
                                           __TRANS_JOIN_NOLOCK),
@@ -449,9 +443,6 @@ static int may_wait_transaction(struct btrfs_fs_info *fs_info, int type)
        if (test_bit(BTRFS_FS_LOG_RECOVERING, &fs_info->flags))
                return 0;
 
-       if (type == TRANS_USERSPACE)
-               return 1;
-
        if (type == TRANS_START &&
            !atomic_read(&fs_info->open_ioctl_trans))
                return 1;
@@ -593,7 +584,7 @@ again:
 got_it:
        btrfs_record_root_in_trans(h, root);
 
-       if (!current->journal_info && type != TRANS_USERSPACE)
+       if (!current->journal_info)
                current->journal_info = h;
        return h;
 
@@ -670,12 +661,6 @@ struct btrfs_trans_handle *btrfs_join_transaction_nolock(struct btrfs_root *root
                                 BTRFS_RESERVE_NO_FLUSH, true);
 }
 
-struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *root)
-{
-       return start_transaction(root, 0, TRANS_USERSPACE,
-                                BTRFS_RESERVE_NO_FLUSH, true);
-}
-
 /*
  * btrfs_attach_transaction() - catch the running transaction
  *
index 2762c8d..b6c94ce 100644 (file)
@@ -105,21 +105,18 @@ struct btrfs_transaction {
 
 #define __TRANS_FREEZABLE      (1U << 0)
 
-#define __TRANS_USERSPACE      (1U << 8)
 #define __TRANS_START          (1U << 9)
 #define __TRANS_ATTACH         (1U << 10)
 #define __TRANS_JOIN           (1U << 11)
 #define __TRANS_JOIN_NOLOCK    (1U << 12)
 #define __TRANS_DUMMY          (1U << 13)
 
-#define TRANS_USERSPACE                (__TRANS_USERSPACE | __TRANS_FREEZABLE)
 #define TRANS_START            (__TRANS_START | __TRANS_FREEZABLE)
 #define TRANS_ATTACH           (__TRANS_ATTACH)
 #define TRANS_JOIN             (__TRANS_JOIN | __TRANS_FREEZABLE)
 #define TRANS_JOIN_NOLOCK      (__TRANS_JOIN_NOLOCK)
 
-#define TRANS_EXTWRITERS       (__TRANS_USERSPACE | __TRANS_START |    \
-                                __TRANS_ATTACH)
+#define TRANS_EXTWRITERS       (__TRANS_START | __TRANS_ATTACH)
 
 #define BTRFS_SEND_TRANS_STUB  ((void *)1)
 
@@ -207,7 +204,6 @@ struct btrfs_trans_handle *btrfs_join_transaction_nolock(struct btrfs_root *root
 struct btrfs_trans_handle *btrfs_attach_transaction(struct btrfs_root *root);
 struct btrfs_trans_handle *btrfs_attach_transaction_barrier(
                                        struct btrfs_root *root);
-struct btrfs_trans_handle *btrfs_start_ioctl_transaction(struct btrfs_root *root);
 int btrfs_wait_for_commit(struct btrfs_fs_info *fs_info, u64 transid);
 
 void btrfs_add_dead_root(struct btrfs_root *root);