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f2fs: introduce F2FS_IPU_HONOR_OPU_WRITE ipu policy
Once F2FS_IPU_FORCE policy is enabled in some cases: a) f2fs forces to use F2FS_IPU_FORCE in a small-sized volume b) user sets F2FS_IPU_FORCE policy via sysfs Then we may fail to defragment file due to IPU policy check, it doesn't make sense, let's introduce a new IPU policy to allow OPU during file defragmentation. In small-sized volume, let's enable F2FS_IPU_HONOR_OPU_WRITE policy by default. Signed-off-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu
Jaegeuk Kim
parent
430f163b01
commit
1018a5463a
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@ -55,8 +55,9 @@ Description: Controls the in-place-update policy.
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0x04 F2FS_IPU_UTIL
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0x08 F2FS_IPU_SSR_UTIL
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0x10 F2FS_IPU_FSYNC
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0x20 F2FS_IPU_ASYNC,
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0x20 F2FS_IPU_ASYNC
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0x40 F2FS_IPU_NOCACHE
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0x80 F2FS_IPU_HONOR_OPU_WRITE
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==== =================
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Refer segment.h for details.
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@ -2460,6 +2460,9 @@ static inline bool check_inplace_update_policy(struct inode *inode,
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struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
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unsigned int policy = SM_I(sbi)->ipu_policy;
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if (policy & (0x1 << F2FS_IPU_HONOR_OPU_WRITE) &&
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is_inode_flag_set(inode, FI_OPU_WRITE))
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return false;
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if (policy & (0x1 << F2FS_IPU_FORCE))
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return true;
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if (policy & (0x1 << F2FS_IPU_SSR) && f2fs_need_SSR(sbi))
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@ -2530,6 +2533,9 @@ bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio)
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if (is_inode_flag_set(inode, FI_ALIGNED_WRITE))
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return true;
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if (is_inode_flag_set(inode, FI_OPU_WRITE))
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return true;
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if (fio) {
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if (page_private_gcing(fio->page))
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return true;
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@ -3154,8 +3160,8 @@ static int __f2fs_write_data_pages(struct address_space *mapping,
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f2fs_available_free_memory(sbi, DIRTY_DENTS))
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goto skip_write;
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/* skip writing during file defragment */
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if (is_inode_flag_set(inode, FI_DO_DEFRAG))
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/* skip writing in file defragment preparing stage */
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if (is_inode_flag_set(inode, FI_SKIP_WRITES))
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goto skip_write;
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trace_f2fs_writepages(mapping->host, wbc, DATA);
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@ -3725,6 +3731,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
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filemap_invalidate_lock(inode->i_mapping);
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set_inode_flag(inode, FI_ALIGNED_WRITE);
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set_inode_flag(inode, FI_OPU_WRITE);
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for (; secidx < end_sec; secidx++) {
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f2fs_down_write(&sbi->pin_sem);
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@ -3733,7 +3740,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
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f2fs_allocate_new_section(sbi, CURSEG_COLD_DATA_PINNED, false);
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f2fs_unlock_op(sbi);
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set_inode_flag(inode, FI_DO_DEFRAG);
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set_inode_flag(inode, FI_SKIP_WRITES);
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for (blkofs = 0; blkofs < blk_per_sec; blkofs++) {
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struct page *page;
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@ -3750,7 +3757,7 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
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f2fs_put_page(page, 1);
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}
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clear_inode_flag(inode, FI_DO_DEFRAG);
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clear_inode_flag(inode, FI_SKIP_WRITES);
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ret = filemap_fdatawrite(inode->i_mapping);
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@ -3761,7 +3768,8 @@ static int f2fs_migrate_blocks(struct inode *inode, block_t start_blk,
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}
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done:
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clear_inode_flag(inode, FI_DO_DEFRAG);
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clear_inode_flag(inode, FI_SKIP_WRITES);
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clear_inode_flag(inode, FI_OPU_WRITE);
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clear_inode_flag(inode, FI_ALIGNED_WRITE);
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filemap_invalidate_unlock(inode->i_mapping);
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@ -740,7 +740,8 @@ enum {
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FI_DROP_CACHE, /* drop dirty page cache */
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FI_DATA_EXIST, /* indicate data exists */
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FI_INLINE_DOTS, /* indicate inline dot dentries */
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FI_DO_DEFRAG, /* indicate defragment is running */
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FI_SKIP_WRITES, /* should skip data page writeback */
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FI_OPU_WRITE, /* used for opu per file */
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FI_DIRTY_FILE, /* indicate regular/symlink has dirty pages */
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FI_PREALLOCATED_ALL, /* all blocks for write were preallocated */
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FI_HOT_DATA, /* indicate file is hot */
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@ -2559,10 +2559,6 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
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bool fragmented = false;
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int err;
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/* if in-place-update policy is enabled, don't waste time here */
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if (f2fs_should_update_inplace(inode, NULL))
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return -EINVAL;
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pg_start = range->start >> PAGE_SHIFT;
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pg_end = (range->start + range->len) >> PAGE_SHIFT;
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@ -2570,6 +2566,13 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
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inode_lock(inode);
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/* if in-place-update policy is enabled, don't waste time here */
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set_inode_flag(inode, FI_OPU_WRITE);
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if (f2fs_should_update_inplace(inode, NULL)) {
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err = -EINVAL;
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goto out;
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}
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/* writeback all dirty pages in the range */
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err = filemap_write_and_wait_range(inode->i_mapping, range->start,
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range->start + range->len - 1);
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@ -2651,7 +2654,7 @@ do_map:
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goto check;
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}
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set_inode_flag(inode, FI_DO_DEFRAG);
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set_inode_flag(inode, FI_SKIP_WRITES);
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idx = map.m_lblk;
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while (idx < map.m_lblk + map.m_len && cnt < blk_per_seg) {
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@ -2676,15 +2679,16 @@ check:
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if (map.m_lblk < pg_end && cnt < blk_per_seg)
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goto do_map;
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clear_inode_flag(inode, FI_DO_DEFRAG);
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clear_inode_flag(inode, FI_SKIP_WRITES);
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err = filemap_fdatawrite(inode->i_mapping);
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if (err)
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goto out;
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}
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clear_out:
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clear_inode_flag(inode, FI_DO_DEFRAG);
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clear_inode_flag(inode, FI_SKIP_WRITES);
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out:
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clear_inode_flag(inode, FI_OPU_WRITE);
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inode_unlock(inode);
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if (!err)
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range->len = (u64)total << PAGE_SHIFT;
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@ -651,7 +651,9 @@ static inline int utilization(struct f2fs_sb_info *sbi)
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* pages over min_fsync_blocks. (=default option)
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* F2FS_IPU_ASYNC - do IPU given by asynchronous write requests.
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* F2FS_IPU_NOCACHE - disable IPU bio cache.
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* F2FS_IPUT_DISABLE - disable IPU. (=default option in LFS mode)
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* F2FS_IPU_HONOR_OPU_WRITE - use OPU write prior to IPU write if inode has
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* FI_OPU_WRITE flag.
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* F2FS_IPU_DISABLE - disable IPU. (=default option in LFS mode)
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*/
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#define DEF_MIN_IPU_UTIL 70
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#define DEF_MIN_FSYNC_BLOCKS 8
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@ -667,6 +669,7 @@ enum {
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F2FS_IPU_FSYNC,
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F2FS_IPU_ASYNC,
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F2FS_IPU_NOCACHE,
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F2FS_IPU_HONOR_OPU_WRITE,
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};
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static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
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@ -3957,7 +3957,8 @@ static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
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F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
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if (f2fs_block_unit_discard(sbi))
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sm_i->dcc_info->discard_granularity = 1;
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sm_i->ipu_policy = 1 << F2FS_IPU_FORCE;
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sm_i->ipu_policy = 1 << F2FS_IPU_FORCE |
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1 << F2FS_IPU_HONOR_OPU_WRITE;
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}
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sbi->readdir_ra = 1;
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