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authorIlya Dryomov <idryomov@gmail.com>2012-03-27 17:09:17 +0300
committerIlya Dryomov <idryomov@gmail.com>2012-03-27 17:09:17 +0300
commit0c460c0d70e10463e44bdf1d406e9c5ec03b1af6 (patch)
tree8c28962481b64a3dcabb2294094435832a23516d /fs/btrfs
parente8920a640be5d4ebe3fee0670639a81d4ffc904c (diff)
downloadlinux-stericsson-0c460c0d70e10463e44bdf1d406e9c5ec03b1af6.tar.gz
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/btrfs')
-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)
kfree(fs_info->super_for_commit);
kfree(fs_info);
}
-/**
- * alloc_profile_is_valid - see if a given profile is valid and reduced
- * @flags: profile to validate
- * @extended: if true @flags is treated as an extended profile
- */
-static inline int alloc_profile_is_valid(u64 flags, int extended)
-{
- u64 mask = (extended ? BTRFS_EXTENDED_PROFILE_MASK :
- BTRFS_BLOCK_GROUP_PROFILE_MASK);
-
- flags &= ~BTRFS_BLOCK_GROUP_TYPE_MASK;
-
- /* 1) check that all other bits are zeroed */
- if (flags & ~mask)
- return 0;
-
- /* 2) see if profile is reduced */
- if (flags == 0)
- return !extended; /* "0" is valid for usual profiles */
-
- /* true if exactly one bit set */
- return (flags & (flags - 1)) == 0;
-}
/* root-item.c */
int 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,
int wait_for_alloc = 0;
int ret = 0;
- BUG_ON(!alloc_profile_is_valid(flags, 0));
-
space_info = __find_space_info(extent_root->fs_info, flags);
if (!space_info) {
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:
return ret;
}
+/**
+ * alloc_profile_is_valid - see if a given profile is valid and reduced
+ * @flags: profile to validate
+ * @extended: if true @flags is treated as an extended profile
+ */
+static int alloc_profile_is_valid(u64 flags, int extended)
+{
+ u64 mask = (extended ? BTRFS_EXTENDED_PROFILE_MASK :
+ BTRFS_BLOCK_GROUP_PROFILE_MASK);
+
+ flags &= ~BTRFS_BLOCK_GROUP_TYPE_MASK;
+
+ /* 1) check that all other bits are zeroed */
+ if (flags & ~mask)
+ return 0;
+
+ /* 2) see if profile is reduced */
+ if (flags == 0)
+ return !extended; /* "0" is valid for usual profiles */
+
+ /* true if exactly one bit set */
+ return (flags & (flags - 1)) == 0;
+}
+
static inline int balance_need_close(struct btrfs_fs_info *fs_info)
{
/* cancel requested || normal exit path */
@@ -3124,11 +3148,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
int i;
int j;
- if ((type & BTRFS_BLOCK_GROUP_RAID1) &&
- (type & BTRFS_BLOCK_GROUP_DUP)) {
- WARN_ON(1);
- type &= ~BTRFS_BLOCK_GROUP_DUP;
- }
+ BUG_ON(!alloc_profile_is_valid(type, 0));
if (list_empty(&fs_devices->alloc_list))
return -ENOSPC;