diff options
| -rw-r--r-- | fs/btrfs/extent_io.c | 31 | ||||
| -rw-r--r-- | fs/btrfs/extent_io.h | 5 |
2 files changed, 16 insertions, 20 deletions
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index 2e7c97a3f344..f3910ac00d89 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -232,7 +232,7 @@ static struct extent_state *alloc_extent_state(gfp_t mask) if (!state) return state; state->state = 0; - state->private = 0; + state->failrec = NULL; RB_CLEAR_NODE(&state->rb_node); btrfs_leak_debug_add(&state->leak_list, &states); atomic_set(&state->refs, 1); @@ -1844,7 +1844,8 @@ out: * set the private field for a given byte offset in the tree. If there isn't * an extent_state there already, this does nothing. */ -static int set_state_private(struct extent_io_tree *tree, u64 start, u64 private) +static int set_state_failrec(struct extent_io_tree *tree, u64 start, + struct io_failure_record *failrec) { struct rb_node *node; struct extent_state *state; @@ -1865,13 +1866,14 @@ static int set_state_private(struct extent_io_tree *tree, u64 start, u64 private ret = -ENOENT; goto out; } - state->private = private; + state->failrec = failrec; out: spin_unlock(&tree->lock); return ret; } -int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private) +static int get_state_failrec(struct extent_io_tree *tree, u64 start, + struct io_failure_record **failrec) { struct rb_node *node; struct extent_state *state; @@ -1892,7 +1894,7 @@ int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private) ret = -ENOENT; goto out; } - *private = state->private; + *failrec = state->failrec; out: spin_unlock(&tree->lock); return ret; @@ -1972,7 +1974,7 @@ int free_io_failure(struct inode *inode, struct io_failure_record *rec) int err = 0; struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree; - set_state_private(failure_tree, rec->start, 0); + set_state_failrec(failure_tree, rec->start, NULL); ret = clear_extent_bits(failure_tree, rec->start, rec->start + rec->len - 1, EXTENT_LOCKED | EXTENT_DIRTY, GFP_NOFS); @@ -2089,7 +2091,6 @@ int clean_io_failure(struct inode *inode, u64 start, struct page *page, unsigned int pg_offset) { u64 private; - u64 private_failure; struct io_failure_record *failrec; struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; struct extent_state *state; @@ -2102,12 +2103,11 @@ int clean_io_failure(struct inode *inode, u64 start, struct page *page, if (!ret) return 0; - ret = get_state_private(&BTRFS_I(inode)->io_failure_tree, start, - &private_failure); + ret = get_state_failrec(&BTRFS_I(inode)->io_failure_tree, start, + &failrec); if (ret) return 0; - failrec = (struct io_failure_record *)(unsigned long) private_failure; BUG_ON(!failrec->this_mirror); if (failrec->in_validation) { @@ -2167,7 +2167,7 @@ void btrfs_free_io_failure_record(struct inode *inode, u64 start, u64 end) next = next_state(state); - failrec = (struct io_failure_record *)(unsigned long)state->private; + failrec = state->failrec; free_extent_state(state); kfree(failrec); @@ -2177,10 +2177,9 @@ void btrfs_free_io_failure_record(struct inode *inode, u64 start, u64 end) } int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end, - struct io_failure_record **failrec_ret) + struct io_failure_record **failrec_ret) { struct io_failure_record *failrec; - u64 private; struct extent_map *em; struct extent_io_tree *failure_tree = &BTRFS_I(inode)->io_failure_tree; struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree; @@ -2188,7 +2187,7 @@ int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end, int ret; u64 logical; - ret = get_state_private(failure_tree, start, &private); + ret = get_state_failrec(failure_tree, start, &failrec); if (ret) { failrec = kzalloc(sizeof(*failrec), GFP_NOFS); if (!failrec) @@ -2237,8 +2236,7 @@ int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end, ret = set_extent_bits(failure_tree, start, end, EXTENT_LOCKED | EXTENT_DIRTY, GFP_NOFS); if (ret >= 0) - ret = set_state_private(failure_tree, start, - (u64)(unsigned long)failrec); + ret = set_state_failrec(failure_tree, start, failrec); /* set the bits in the inode's tree */ if (ret >= 0) ret = set_extent_bits(tree, start, end, EXTENT_DAMAGED, @@ -2248,7 +2246,6 @@ int btrfs_get_io_failure_record(struct inode *inode, u64 start, u64 end, return ret; } } else { - failrec = (struct io_failure_record *)(unsigned long)private; pr_debug("Get IO Failure Record: (found) logical=%llu, start=%llu, len=%llu, validation=%d\n", failrec->logical, failrec->start, failrec->len, failrec->in_validation); diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h index 0377413bd4b9..98a25a100674 100644 --- a/fs/btrfs/extent_io.h +++ b/fs/btrfs/extent_io.h @@ -62,6 +62,7 @@ struct extent_state; struct btrfs_root; struct btrfs_io_bio; +struct io_failure_record; typedef int (extent_submit_bio_hook_t)(struct inode *inode, int rw, struct bio *bio, int mirror_num, @@ -112,8 +113,7 @@ struct extent_state { atomic_t refs; unsigned state; - /* for use by the FS */ - u64 private; + struct io_failure_record *failrec; #ifdef CONFIG_BTRFS_DEBUG struct list_head leak_list; @@ -345,7 +345,6 @@ int extent_readpages(struct extent_io_tree *tree, get_extent_t get_extent); int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, __u64 start, __u64 len, get_extent_t *get_extent); -int get_state_private(struct extent_io_tree *tree, u64 start, u64 *private); void set_page_extent_mapped(struct page *page); struct extent_buffer *alloc_extent_buffer(struct btrfs_fs_info *fs_info, |