diff options
-rw-r--r-- | fs/f2fs/checkpoint.c | 26 | ||||
-rw-r--r-- | fs/f2fs/data.c | 4 | ||||
-rw-r--r-- | fs/f2fs/dir.c | 4 | ||||
-rw-r--r-- | fs/f2fs/f2fs.h | 8 | ||||
-rw-r--r-- | fs/f2fs/node.c | 16 | ||||
-rw-r--r-- | fs/f2fs/segment.h | 2 |
6 files changed, 33 insertions, 27 deletions
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c index 38f4a2245085..6b2106685b7a 100644 --- a/fs/f2fs/checkpoint.c +++ b/fs/f2fs/checkpoint.c @@ -82,13 +82,12 @@ static int f2fs_write_meta_page(struct page *page, struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb); /* Should not write any meta pages, if any IO error was occurred */ - if (wbc->for_reclaim || sbi->por_doing || - is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)) { - dec_page_count(sbi, F2FS_DIRTY_META); - wbc->pages_skipped++; - set_page_dirty(page); - return AOP_WRITEPAGE_ACTIVATE; - } + if (unlikely(sbi->por_doing || + is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG))) + goto redirty_out; + + if (wbc->for_reclaim) + goto redirty_out; wait_on_page_writeback(page); @@ -96,6 +95,12 @@ static int f2fs_write_meta_page(struct page *page, dec_page_count(sbi, F2FS_DIRTY_META); unlock_page(page); return 0; + +redirty_out: + dec_page_count(sbi, F2FS_DIRTY_META); + wbc->pages_skipped++; + set_page_dirty(page); + return AOP_WRITEPAGE_ACTIVATE; } static int f2fs_write_meta_pages(struct address_space *mapping, @@ -137,7 +142,7 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, nr_pages = pagevec_lookup_tag(&pvec, mapping, &index, PAGECACHE_TAG_DIRTY, min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1); - if (nr_pages == 0) + if (unlikely(nr_pages == 0)) break; for (i = 0; i < nr_pages; i++) { @@ -150,7 +155,8 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type, unlock_page(page); break; } - if (nwritten++ >= nr_to_write) + nwritten++; + if (unlikely(nwritten >= nr_to_write)) break; } pagevec_release(&pvec); @@ -200,7 +206,7 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi) max_orphans = (sbi->blocks_per_seg - 2 - NR_CURSEG_TYPE) * F2FS_ORPHANS_PER_BLOCK; mutex_lock(&sbi->orphan_inode_mutex); - if (sbi->n_orphans >= max_orphans) + if (unlikely(sbi->n_orphans >= max_orphans)) err = -ENOSPC; else sbi->n_orphans++; diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 4e2fc09f0e4f..2ce5a9ef508b 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -251,7 +251,7 @@ int reserve_new_block(struct dnode_of_data *dn) if (is_inode_flag_set(F2FS_I(dn->inode), FI_NO_ALLOC)) return -EPERM; - if (!inc_valid_block_count(sbi, dn->inode, 1)) + if (unlikely(!inc_valid_block_count(sbi, dn->inode, 1))) return -ENOSPC; trace_f2fs_reserve_new_block(dn->inode, dn->nid, dn->ofs_in_node); @@ -711,7 +711,7 @@ static int f2fs_write_data_page(struct page *page, zero_user_segment(page, offset, PAGE_CACHE_SIZE); write: - if (sbi->por_doing) { + if (unlikely(sbi->por_doing)) { err = AOP_WRITEPAGE_ACTIVATE; goto redirty_out; } diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 594fc1bb64ef..0cc26ba07c3b 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -190,7 +190,7 @@ struct f2fs_dir_entry *f2fs_find_entry(struct inode *dir, unsigned int max_depth; unsigned int level; - if (namelen > F2FS_NAME_LEN) + if (unlikely(namelen > F2FS_NAME_LEN)) return NULL; if (npages == 0) @@ -461,7 +461,7 @@ int __f2fs_add_link(struct inode *dir, const struct qstr *name, struct inode *in } start: - if (current_depth == MAX_DIR_HASH_DEPTH) + if (unlikely(current_depth == MAX_DIR_HASH_DEPTH)) return -ENOSPC; /* Increase the depth, if required */ diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 10eca022e1e1..dca18b3bcc62 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -574,7 +574,7 @@ static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi) static inline int check_nid_range(struct f2fs_sb_info *sbi, nid_t nid) { WARN_ON((nid >= NM_I(sbi)->max_nid)); - if (nid >= NM_I(sbi)->max_nid) + if (unlikely(nid >= NM_I(sbi)->max_nid)) return -EINVAL; return 0; } @@ -600,7 +600,7 @@ static inline bool inc_valid_block_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); valid_block_count = sbi->total_valid_block_count + (block_t)count; - if (valid_block_count > sbi->user_block_count) { + if (unlikely(valid_block_count > sbi->user_block_count)) { spin_unlock(&sbi->stat_lock); return false; } @@ -719,13 +719,13 @@ static inline bool inc_valid_node_count(struct f2fs_sb_info *sbi, spin_lock(&sbi->stat_lock); valid_block_count = sbi->total_valid_block_count + 1; - if (valid_block_count > sbi->user_block_count) { + if (unlikely(valid_block_count > sbi->user_block_count)) { spin_unlock(&sbi->stat_lock); return false; } valid_node_count = sbi->total_valid_node_count + 1; - if (valid_node_count > sbi->total_node_count) { + if (unlikely(valid_node_count > sbi->total_node_count)) { spin_unlock(&sbi->stat_lock); return false; } diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 099f06f84e29..2e41636be476 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -94,7 +94,7 @@ static void ra_nat_pages(struct f2fs_sb_info *sbi, int nid) int i; for (i = 0; i < FREE_NID_PAGES; i++, nid += NAT_ENTRY_PER_BLOCK) { - if (nid >= nm_i->max_nid) + if (unlikely(nid >= nm_i->max_nid)) nid = 0; index = current_nat_addr(sbi, nid); @@ -1160,7 +1160,7 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino) struct page *page = pvec.pages[i]; /* until radix tree lookup accepts end_index */ - if (page->index > end) + if (unlikely(page->index > end)) continue; if (ino && ino_of_node(page) == ino) { @@ -1190,7 +1190,7 @@ static int f2fs_write_node_page(struct page *page, block_t new_addr; struct node_info ni; - if (sbi->por_doing) + if (unlikely(sbi->por_doing)) goto redirty_out; wait_on_page_writeback(page); @@ -1326,7 +1326,7 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build) return -1; /* 0 nid should not be used */ - if (nid == 0) + if (unlikely(nid == 0)) return 0; if (build) { @@ -1379,7 +1379,7 @@ static void scan_nat_page(struct f2fs_nm_info *nm_i, for (; i < NAT_ENTRY_PER_BLOCK; i++, start_nid++) { - if (start_nid >= nm_i->max_nid) + if (unlikely(start_nid >= nm_i->max_nid)) break; blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr); @@ -1413,7 +1413,7 @@ static void build_free_nids(struct f2fs_sb_info *sbi) f2fs_put_page(page, 1); nid += (NAT_ENTRY_PER_BLOCK - (nid % NAT_ENTRY_PER_BLOCK)); - if (nid >= nm_i->max_nid) + if (unlikely(nid >= nm_i->max_nid)) nid = 0; if (i++ == FREE_NID_PAGES) @@ -1447,7 +1447,7 @@ bool alloc_nid(struct f2fs_sb_info *sbi, nid_t *nid) struct free_nid *i = NULL; struct list_head *this; retry: - if (sbi->total_valid_node_count + 1 >= nm_i->max_nid) + if (unlikely(sbi->total_valid_node_count + 1 >= nm_i->max_nid)) return false; spin_lock(&nm_i->free_nid_list_lock); @@ -1557,7 +1557,7 @@ int recover_inode_page(struct f2fs_sb_info *sbi, struct page *page) new_ni = old_ni; new_ni.ino = ino; - if (!inc_valid_node_count(sbi, NULL)) + if (unlikely(!inc_valid_node_count(sbi, NULL))) WARN_ON(1); set_node_addr(sbi, &new_ni, NEW_ADDR); inc_valid_inode_count(sbi); diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 26812fc0fa12..ea563760f4b7 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -457,7 +457,7 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi, int freed) int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES); int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS); - if (sbi->por_doing) + if (unlikely(sbi->por_doing)) return false; return ((free_sections(sbi) + freed) <= (node_secs + 2 * dent_secs + |