From 4c6d1d85ad89fd8e32dc9204b7f944854399bda9 Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 6 Apr 2015 13:17:20 -0700 Subject: [PATCH] btrfs: move struct io_ctl into ctree.h and rename it We'll need to put the io_ctl into the block_group cache struct, so name it struct btrfs_io_ctl and move it into ctree.h Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 11 ++++++++ fs/btrfs/free-space-cache.c | 55 +++++++++++++++---------------------- 2 files changed, 33 insertions(+), 33 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 6bf16d5134c5..e305ccd731fe 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1256,6 +1256,17 @@ struct btrfs_caching_control { atomic_t count; }; +struct btrfs_io_ctl { + void *cur, *orig; + struct page *page; + struct page **pages; + struct btrfs_root *root; + unsigned long size; + int index; + int num_pages; + unsigned check_crcs:1; +}; + struct btrfs_block_group_cache { struct btrfs_key key; struct btrfs_block_group_item item; diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index c51482031edf..47c2adb3ddf3 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -271,18 +271,7 @@ static int readahead_cache(struct inode *inode) return 0; } -struct io_ctl { - void *cur, *orig; - struct page *page; - struct page **pages; - struct btrfs_root *root; - unsigned long size; - int index; - int num_pages; - unsigned check_crcs:1; -}; - -static int io_ctl_init(struct io_ctl *io_ctl, struct inode *inode, +static int io_ctl_init(struct btrfs_io_ctl *io_ctl, struct inode *inode, struct btrfs_root *root, int write) { int num_pages; @@ -298,7 +287,7 @@ static int io_ctl_init(struct io_ctl *io_ctl, struct inode *inode, (num_pages * sizeof(u32)) >= PAGE_CACHE_SIZE) return -ENOSPC; - memset(io_ctl, 0, sizeof(struct io_ctl)); + memset(io_ctl, 0, sizeof(struct btrfs_io_ctl)); io_ctl->pages = kcalloc(num_pages, sizeof(struct page *), GFP_NOFS); if (!io_ctl->pages) @@ -311,12 +300,12 @@ static int io_ctl_init(struct io_ctl *io_ctl, struct inode *inode, return 0; } -static void io_ctl_free(struct io_ctl *io_ctl) +static void io_ctl_free(struct btrfs_io_ctl *io_ctl) { kfree(io_ctl->pages); } -static void io_ctl_unmap_page(struct io_ctl *io_ctl) +static void io_ctl_unmap_page(struct btrfs_io_ctl *io_ctl) { if (io_ctl->cur) { kunmap(io_ctl->page); @@ -325,7 +314,7 @@ static void io_ctl_unmap_page(struct io_ctl *io_ctl) } } -static void io_ctl_map_page(struct io_ctl *io_ctl, int clear) +static void io_ctl_map_page(struct btrfs_io_ctl *io_ctl, int clear) { ASSERT(io_ctl->index < io_ctl->num_pages); io_ctl->page = io_ctl->pages[io_ctl->index++]; @@ -336,7 +325,7 @@ static void io_ctl_map_page(struct io_ctl *io_ctl, int clear) memset(io_ctl->cur, 0, PAGE_CACHE_SIZE); } -static void io_ctl_drop_pages(struct io_ctl *io_ctl) +static void io_ctl_drop_pages(struct btrfs_io_ctl *io_ctl) { int i; @@ -351,7 +340,7 @@ static void io_ctl_drop_pages(struct io_ctl *io_ctl) } } -static int io_ctl_prepare_pages(struct io_ctl *io_ctl, struct inode *inode, +static int io_ctl_prepare_pages(struct btrfs_io_ctl *io_ctl, struct inode *inode, int uptodate) { struct page *page; @@ -385,7 +374,7 @@ static int io_ctl_prepare_pages(struct io_ctl *io_ctl, struct inode *inode, return 0; } -static void io_ctl_set_generation(struct io_ctl *io_ctl, u64 generation) +static void io_ctl_set_generation(struct btrfs_io_ctl *io_ctl, u64 generation) { __le64 *val; @@ -408,7 +397,7 @@ static void io_ctl_set_generation(struct io_ctl *io_ctl, u64 generation) io_ctl->cur += sizeof(u64); } -static int io_ctl_check_generation(struct io_ctl *io_ctl, u64 generation) +static int io_ctl_check_generation(struct btrfs_io_ctl *io_ctl, u64 generation) { __le64 *gen; @@ -437,7 +426,7 @@ static int io_ctl_check_generation(struct io_ctl *io_ctl, u64 generation) return 0; } -static void io_ctl_set_crc(struct io_ctl *io_ctl, int index) +static void io_ctl_set_crc(struct btrfs_io_ctl *io_ctl, int index) { u32 *tmp; u32 crc = ~(u32)0; @@ -461,7 +450,7 @@ static void io_ctl_set_crc(struct io_ctl *io_ctl, int index) kunmap(io_ctl->pages[0]); } -static int io_ctl_check_crc(struct io_ctl *io_ctl, int index) +static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index) { u32 *tmp, val; u32 crc = ~(u32)0; @@ -494,7 +483,7 @@ static int io_ctl_check_crc(struct io_ctl *io_ctl, int index) return 0; } -static int io_ctl_add_entry(struct io_ctl *io_ctl, u64 offset, u64 bytes, +static int io_ctl_add_entry(struct btrfs_io_ctl *io_ctl, u64 offset, u64 bytes, void *bitmap) { struct btrfs_free_space_entry *entry; @@ -524,7 +513,7 @@ static int io_ctl_add_entry(struct io_ctl *io_ctl, u64 offset, u64 bytes, return 0; } -static int io_ctl_add_bitmap(struct io_ctl *io_ctl, void *bitmap) +static int io_ctl_add_bitmap(struct btrfs_io_ctl *io_ctl, void *bitmap) { if (!io_ctl->cur) return -ENOSPC; @@ -547,7 +536,7 @@ static int io_ctl_add_bitmap(struct io_ctl *io_ctl, void *bitmap) return 0; } -static void io_ctl_zero_remaining_pages(struct io_ctl *io_ctl) +static void io_ctl_zero_remaining_pages(struct btrfs_io_ctl *io_ctl) { /* * If we're not on the boundary we know we've modified the page and we @@ -564,7 +553,7 @@ static void io_ctl_zero_remaining_pages(struct io_ctl *io_ctl) } } -static int io_ctl_read_entry(struct io_ctl *io_ctl, +static int io_ctl_read_entry(struct btrfs_io_ctl *io_ctl, struct btrfs_free_space *entry, u8 *type) { struct btrfs_free_space_entry *e; @@ -591,7 +580,7 @@ static int io_ctl_read_entry(struct io_ctl *io_ctl, return 0; } -static int io_ctl_read_bitmap(struct io_ctl *io_ctl, +static int io_ctl_read_bitmap(struct btrfs_io_ctl *io_ctl, struct btrfs_free_space *entry) { int ret; @@ -650,7 +639,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, { struct btrfs_free_space_header *header; struct extent_buffer *leaf; - struct io_ctl io_ctl; + struct btrfs_io_ctl io_ctl; struct btrfs_key key; struct btrfs_free_space *e, *n; LIST_HEAD(bitmaps); @@ -879,7 +868,7 @@ out: } static noinline_for_stack -int write_cache_extent_entries(struct io_ctl *io_ctl, +int write_cache_extent_entries(struct btrfs_io_ctl *io_ctl, struct btrfs_free_space_ctl *ctl, struct btrfs_block_group_cache *block_group, int *entries, int *bitmaps, @@ -1002,7 +991,7 @@ fail: static noinline_for_stack int write_pinned_extent_entries(struct btrfs_root *root, struct btrfs_block_group_cache *block_group, - struct io_ctl *io_ctl, + struct btrfs_io_ctl *io_ctl, int *entries) { u64 start, extent_start, extent_end, len; @@ -1052,7 +1041,7 @@ write_pinned_extent_entries(struct btrfs_root *root, } static noinline_for_stack int -write_bitmap_entries(struct io_ctl *io_ctl, struct list_head *bitmap_list) +write_bitmap_entries(struct btrfs_io_ctl *io_ctl, struct list_head *bitmap_list) { struct list_head *pos, *n; int ret; @@ -1086,7 +1075,7 @@ static int flush_dirty_cache(struct inode *inode) static void noinline_for_stack cleanup_write_cache_enospc(struct inode *inode, - struct io_ctl *io_ctl, + struct btrfs_io_ctl *io_ctl, struct extent_state **cached_state, struct list_head *bitmap_list) { @@ -1123,7 +1112,7 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode, struct btrfs_path *path, u64 offset) { struct extent_state *cached_state = NULL; - struct io_ctl io_ctl; + struct btrfs_io_ctl io_ctl; LIST_HEAD(bitmap_list); int entries = 0; int bitmaps = 0; -- 2.20.1