f2fs: clean up discard_cmd_control structure

Avoid long variable name in discard_cmd_control structure, no logic
change.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ee7d610..c1faf6d 100644 (file)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -220,12 +220,12 @@ struct discard_cmd {
 
 struct discard_cmd_control {
        struct task_struct *f2fs_issue_discard; /* discard thread */
-       struct list_head discard_entry_list;    /* 4KB discard entry list */
-       int nr_discards;                        /* # of discards in the list */
-       struct list_head discard_pend_list;     /* store pending entries */
-       struct list_head discard_wait_list;     /* store on-flushing entries */
+       struct list_head entry_list;            /* 4KB discard entry list */
+       struct list_head pend_list;             /* store pending entries */
+       struct list_head wait_list;             /* store on-flushing entries */
        wait_queue_head_t discard_wait_queue;   /* waiting queue for wake-up */
        struct mutex cmd_lock;
+       int nr_discards;                        /* # of discards in the list */
        int max_discards;                       /* max. discards to be issued */
        atomic_t issued_discard;                /* # of issued discard */
        atomic_t issing_discard;                /* # of issing discard */

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d137a08..c23a52a 100644 (file)
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -677,7 +677,7 @@ static struct discard_cmd *__create_discard_cmd(struct f2fs_sb_info *sbi,
                block_t start, block_t len)
 {
        struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
-       struct list_head *pend_list = &(dcc->discard_pend_list);
+       struct list_head *pend_list = &(dcc->pend_list);
        struct discard_cmd *dc;
 
        dc = f2fs_kmem_cache_alloc(discard_cmd_slab, GFP_NOFS);
@@ -773,7 +773,7 @@ static void __submit_discard_cmd(struct f2fs_sb_info *sbi,
                        bio->bi_end_io = f2fs_submit_discard_endio;
                        bio->bi_opf |= REQ_SYNC;
                        submit_bio(bio);
-                       list_move_tail(&dc->list, &dcc->discard_wait_list);
+                       list_move_tail(&dc->list, &dcc->wait_list);
                }
        } else {
                __remove_discard_cmd(sbi, dc);
@@ -961,8 +961,8 @@ void f2fs_wait_discard_bio(struct f2fs_sb_info *sbi, block_t blkaddr)
 void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
 {
        struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
-       struct list_head *pend_list = &(dcc->discard_pend_list);
-       struct list_head *wait_list = &(dcc->discard_wait_list);
+       struct list_head *pend_list = &(dcc->pend_list);
+       struct list_head *wait_list = &(dcc->wait_list);
        struct discard_cmd *dc, *tmp;
        struct blk_plug plug;
 
@@ -986,8 +986,8 @@ static int issue_discard_thread(void *data)
        struct f2fs_sb_info *sbi = data;
        struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
        wait_queue_head_t *q = &dcc->discard_wait_queue;
-       struct list_head *pend_list = &dcc->discard_pend_list;
-       struct list_head *wait_list = &dcc->discard_wait_list;
+       struct list_head *pend_list = &dcc->pend_list;
+       struct list_head *wait_list = &dcc->wait_list;
        struct discard_cmd *dc, *tmp;
        struct blk_plug plug;
        int iter = 0;
@@ -1135,7 +1135,7 @@ static bool add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc,
        unsigned int start = 0, end = -1;
        bool force = (cpc->reason == CP_DISCARD);
        struct discard_entry *de = NULL;
-       struct list_head *head = &SM_I(sbi)->dcc_info->discard_entry_list;
+       struct list_head *head = &SM_I(sbi)->dcc_info->entry_list;
        int i;
 
        if (se->valid_blocks == max_blocks || !f2fs_discard_en(sbi))
@@ -1184,7 +1184,7 @@ static bool add_discard_addrs(struct f2fs_sb_info *sbi, struct cp_control *cpc,
 
 void release_discard_addrs(struct f2fs_sb_info *sbi)
 {
-       struct list_head *head = &(SM_I(sbi)->dcc_info->discard_entry_list);
+       struct list_head *head = &(SM_I(sbi)->dcc_info->entry_list);
        struct discard_entry *entry, *this;
 
        /* drop caches */
@@ -1210,7 +1210,7 @@ static void set_prefree_as_free_segments(struct f2fs_sb_info *sbi)
 
 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 {
-       struct list_head *head = &(SM_I(sbi)->dcc_info->discard_entry_list);
+       struct list_head *head = &(SM_I(sbi)->dcc_info->entry_list);
        struct discard_entry *entry, *this;
        struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
        unsigned long *prefree_map = dirty_i->dirty_segmap[PRE];
@@ -1311,9 +1311,9 @@ static int create_discard_cmd_control(struct f2fs_sb_info *sbi)
        if (!dcc)
                return -ENOMEM;
 
-       INIT_LIST_HEAD(&dcc->discard_entry_list);
-       INIT_LIST_HEAD(&dcc->discard_pend_list);
-       INIT_LIST_HEAD(&dcc->discard_wait_list);
+       INIT_LIST_HEAD(&dcc->entry_list);
+       INIT_LIST_HEAD(&dcc->pend_list);
+       INIT_LIST_HEAD(&dcc->wait_list);
        mutex_init(&dcc->cmd_lock);
        atomic_set(&dcc->issued_discard, 0);
        atomic_set(&dcc->issing_discard, 0);