btrfs: fix misleading variable name for flags

The variable was named 'data' in btrfs_reserve_extent and that's the
only function that actually uses it to let btrfs_get_alloc_profile know
what profile we want. Then it's passed down as u64 flags.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 4272fbb..78b9d45 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3065,7 +3065,7 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans,
                                  struct btrfs_root *root,
                                  u64 num_bytes, u64 min_alloc_size,
                                  u64 empty_size, u64 hint_byte,
-                                 struct btrfs_key *ins, u64 data);
+                                 struct btrfs_key *ins, int is_data);
 int btrfs_inc_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,
                  struct extent_buffer *buf, int full_backref, int for_cow);
 int btrfs_dec_ref(struct btrfs_trans_handle *trans, struct btrfs_root *root,

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 039a771..2305b5c 100644 (file)
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5876,7 +5876,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
                                     struct btrfs_root *orig_root,
                                     u64 num_bytes, u64 empty_size,
                                     u64 hint_byte, struct btrfs_key *ins,
-                                    u64 data)
+                                    u64 flags)
 {
        int ret = 0;
        struct btrfs_root *root = orig_root->fs_info->extent_root;
@@ -5887,8 +5887,8 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
        int empty_cluster = 2 * 1024 * 1024;
        struct btrfs_space_info *space_info;
        int loop = 0;
-       int index = __get_raid_index(data);
-       int alloc_type = (data & BTRFS_BLOCK_GROUP_DATA) ?
+       int index = __get_raid_index(flags);
+       int alloc_type = (flags & BTRFS_BLOCK_GROUP_DATA) ?
                RESERVE_ALLOC_NO_ACCOUNT : RESERVE_ALLOC;
        bool found_uncached_bg = false;
        bool failed_cluster_refill = false;
@@ -5901,11 +5901,11 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
        ins->objectid = 0;
        ins->offset = 0;
 
-       trace_find_free_extent(orig_root, num_bytes, empty_size, data);
+       trace_find_free_extent(orig_root, num_bytes, empty_size, flags);
 
-       space_info = __find_space_info(root->fs_info, data);
+       space_info = __find_space_info(root->fs_info, flags);
        if (!space_info) {
-               btrfs_err(root->fs_info, "No space info for %llu", data);
+               btrfs_err(root->fs_info, "No space info for %llu", flags);
                return -ENOSPC;
        }
 
@@ -5916,13 +5916,13 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
        if (btrfs_mixed_space_info(space_info))
                use_cluster = false;
 
-       if (data & BTRFS_BLOCK_GROUP_METADATA && use_cluster) {
+       if (flags & BTRFS_BLOCK_GROUP_METADATA && use_cluster) {
                last_ptr = &root->fs_info->meta_alloc_cluster;
                if (!btrfs_test_opt(root, SSD))
                        empty_cluster = 64 * 1024;
        }
 
-       if ((data & BTRFS_BLOCK_GROUP_DATA) && use_cluster &&
+       if ((flags & BTRFS_BLOCK_GROUP_DATA) && use_cluster &&
            btrfs_test_opt(root, SSD)) {
                last_ptr = &root->fs_info->data_alloc_cluster;
        }
@@ -5951,7 +5951,7 @@ static noinline int find_free_extent(struct btrfs_trans_handle *trans,
                 * However if we are re-searching with an ideal block group
                 * picked out then we don't care that the block group is cached.
                 */
-               if (block_group && block_group_bits(block_group, data) &&
+               if (block_group && block_group_bits(block_group, flags) &&
                    block_group->cached != BTRFS_CACHE_NO) {
                        down_read(&space_info->groups_sem);
                        if (list_empty(&block_group->list) ||
@@ -5989,7 +5989,7 @@ search:
                 * raid types, but we want to make sure we only allocate
                 * for the proper type.
                 */
-               if (!block_group_bits(block_group, data)) {
+               if (!block_group_bits(block_group, flags)) {
                    u64 extra = BTRFS_BLOCK_GROUP_DUP |
                                BTRFS_BLOCK_GROUP_RAID1 |
                                BTRFS_BLOCK_GROUP_RAID5 |
@@ -6001,7 +6001,7 @@ search:
                         * doesn't provide them, bail.  This does allow us to
                         * fill raid0 from raid1.
                         */
-                       if ((data & extra) && !(block_group->flags & extra))
+                       if ((flags & extra) && !(block_group->flags & extra))
                                goto loop;
                }
 
@@ -6032,7 +6032,7 @@ have_block_group:
                        if (used_block_group != block_group &&
                            (!used_block_group ||
                             used_block_group->ro ||
-                            !block_group_bits(used_block_group, data))) {
+                            !block_group_bits(used_block_group, flags))) {
                                used_block_group = block_group;
                                goto refill_cluster;
                        }
@@ -6228,7 +6228,7 @@ loop:
                index = 0;
                loop++;
                if (loop == LOOP_ALLOC_CHUNK) {
-                       ret = do_chunk_alloc(trans, root, data,
+                       ret = do_chunk_alloc(trans, root, flags,
                                             CHUNK_ALLOC_FORCE);
                        /*
                         * Do not bail out on ENOSPC since we
@@ -6306,16 +6306,17 @@ int btrfs_reserve_extent(struct btrfs_trans_handle *trans,
                         struct btrfs_root *root,
                         u64 num_bytes, u64 min_alloc_size,
                         u64 empty_size, u64 hint_byte,
-                        struct btrfs_key *ins, u64 data)
+                        struct btrfs_key *ins, int is_data)
 {
        bool final_tried = false;
+       u64 flags;
        int ret;
 
-       data = btrfs_get_alloc_profile(root, data);
+       flags = btrfs_get_alloc_profile(root, is_data);
 again:
        WARN_ON(num_bytes < root->sectorsize);
        ret = find_free_extent(trans, root, num_bytes, empty_size,
-                              hint_byte, ins, data);
+                              hint_byte, ins, flags);
 
        if (ret == -ENOSPC) {
                if (!final_tried) {
@@ -6328,9 +6329,9 @@ again:
                } else if (btrfs_test_opt(root, ENOSPC_DEBUG)) {
                        struct btrfs_space_info *sinfo;
 
-                       sinfo = __find_space_info(root->fs_info, data);
+                       sinfo = __find_space_info(root->fs_info, flags);
                        btrfs_err(root->fs_info, "allocation failed flags %llu, wanted %llu",
-                               (unsigned long long)data,
+                               (unsigned long long)flags,
                                (unsigned long long)num_bytes);
                        if (sinfo)
                                dump_space_info(sinfo, num_bytes, 1);