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authorIlya Dryomov <idryomov@gmail.com>2012-03-27 10:09:17 -0400
committerIlya Dryomov <idryomov@gmail.com>2012-03-27 10:09:17 -0400
commit0c460c0d70e10463e44bdf1d406e9c5ec03b1af6 (patch)
tree8c28962481b64a3dcabb2294094435832a23516d /fs
parente8920a640be5d4ebe3fee0670639a81d4ffc904c (diff)
Btrfs: move alloc_profile_is_valid() to volumes.c
Header file is not a good place to define functions. This also moves a call to alloc_profile_is_valid() down the stack and removes a redundant check from __btrfs_alloc_chunk() - alloc_profile_is_valid() takes it into account. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/btrfs/ctree.h23
-rw-r--r--fs/btrfs/extent-tree.c2
-rw-r--r--fs/btrfs/volumes.c30
3 files changed, 25 insertions, 30 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index f057e92df39f..a56e1e00105f 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2734,29 +2734,6 @@ static inline void free_fs_info(struct btrfs_fs_info *fs_info)
2734 kfree(fs_info->super_for_commit); 2734 kfree(fs_info->super_for_commit);
2735 kfree(fs_info); 2735 kfree(fs_info);
2736} 2736}
2737/**
2738 * alloc_profile_is_valid - see if a given profile is valid and reduced
2739 * @flags: profile to validate
2740 * @extended: if true @flags is treated as an extended profile
2741 */
2742static inline int alloc_profile_is_valid(u64 flags, int extended)
2743{
2744 u64 mask = (extended ? BTRFS_EXTENDED_PROFILE_MASK :
2745 BTRFS_BLOCK_GROUP_PROFILE_MASK);
2746
2747 flags &= ~BTRFS_BLOCK_GROUP_TYPE_MASK;
2748
2749 /* 1) check that all other bits are zeroed */
2750 if (flags & ~mask)
2751 return 0;
2752
2753 /* 2) see if profile is reduced */
2754 if (flags == 0)
2755 return !extended; /* "0" is valid for usual profiles */
2756
2757 /* true if exactly one bit set */
2758 return (flags & (flags - 1)) == 0;
2759}
2760 2737
2761/* root-item.c */ 2738/* root-item.c */
2762int btrfs_find_root_ref(struct btrfs_root *tree_root, 2739int btrfs_find_root_ref(struct btrfs_root *tree_root,
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 8c5bd8fa8245..304710cae653 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3400,8 +3400,6 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans,
3400 int wait_for_alloc = 0; 3400 int wait_for_alloc = 0;
3401 int ret = 0; 3401 int ret = 0;
3402 3402
3403 BUG_ON(!alloc_profile_is_valid(flags, 0));
3404
3405 space_info = __find_space_info(extent_root->fs_info, flags); 3403 space_info = __find_space_info(extent_root->fs_info, flags);
3406 if (!space_info) { 3404 if (!space_info) {
3407 ret = update_space_info(extent_root->fs_info, flags, 3405 ret = update_space_info(extent_root->fs_info, flags,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index e4ef0f2fdb73..def9e25f87f2 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2598,6 +2598,30 @@ error:
2598 return ret; 2598 return ret;
2599} 2599}
2600 2600
2601/**
2602 * alloc_profile_is_valid - see if a given profile is valid and reduced
2603 * @flags: profile to validate
2604 * @extended: if true @flags is treated as an extended profile
2605 */
2606static int alloc_profile_is_valid(u64 flags, int extended)
2607{
2608 u64 mask = (extended ? BTRFS_EXTENDED_PROFILE_MASK :
2609 BTRFS_BLOCK_GROUP_PROFILE_MASK);
2610
2611 flags &= ~BTRFS_BLOCK_GROUP_TYPE_MASK;
2612
2613 /* 1) check that all other bits are zeroed */
2614 if (flags & ~mask)
2615 return 0;
2616
2617 /* 2) see if profile is reduced */
2618 if (flags == 0)
2619 return !extended; /* "0" is valid for usual profiles */
2620
2621 /* true if exactly one bit set */
2622 return (flags & (flags - 1)) == 0;
2623}
2624
2601static inline int balance_need_close(struct btrfs_fs_info *fs_info) 2625static inline int balance_need_close(struct btrfs_fs_info *fs_info)
2602{ 2626{
2603 /* cancel requested || normal exit path */ 2627 /* cancel requested || normal exit path */
@@ -3124,11 +3148,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
3124 int i; 3148 int i;
3125 int j; 3149 int j;
3126 3150
3127 if ((type & BTRFS_BLOCK_GROUP_RAID1) && 3151 BUG_ON(!alloc_profile_is_valid(type, 0));
3128 (type & BTRFS_BLOCK_GROUP_DUP)) {
3129 WARN_ON(1);
3130 type &= ~BTRFS_BLOCK_GROUP_DUP;
3131 }
3132 3152
3133 if (list_empty(&fs_devices->alloc_list)) 3153 if (list_empty(&fs_devices->alloc_list))
3134 return -ENOSPC; 3154 return -ENOSPC;