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author | 2022-07-31 11:33:46 +0800 | |
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committer | 2022-08-05 04:20:55 -0700 | |
commit | 01fc4b9a6ed8eacb64e5609bab7ac963e1c7e486 (patch) | |
tree | fd9b29eea4542fca39e99bf244a1af141cee154f /fs | |
parent | f2fs: intorduce f2fs_all_cluster_page_ready (diff) | |
download | linux-01fc4b9a6ed8eacb64e5609bab7ac963e1c7e486.tar.gz linux-01fc4b9a6ed8eacb64e5609bab7ac963e1c7e486.tar.bz2 linux-01fc4b9a6ed8eacb64e5609bab7ac963e1c7e486.zip |
f2fs: use onstack pages instead of pvec
Since pvec have 15 pages, it not a multiple of 4, when write compressed
pages, write in 64K as a unit, it will call pagevec_lookup_range_tag
agagin, sometimes this will take a lot of time.
Use onstack pages instead of pvec to mitigate this problem.
Signed-off-by: Fengnan Chang <fengnanchang@gmail.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/f2fs/compress.c | 8 | ||||
-rw-r--r-- | fs/f2fs/data.c | 16 | ||||
-rw-r--r-- | fs/f2fs/f2fs.h | 4 |
3 files changed, 14 insertions, 14 deletions
diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 75886b493ec3..87bf06e15efe 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -841,10 +841,10 @@ bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index) return is_page_in_cluster(cc, index); } -bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct pagevec *pvec, +bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages, int index, int nr_pages, bool uptodate) { - unsigned long pgidx = pvec->pages[index]->index; + unsigned long pgidx = pages[index]->index; int i = uptodate ? 0 : 1; /* @@ -858,9 +858,9 @@ bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct pagevec *pvec, return false; for (; i < cc->cluster_size; i++) { - if (pvec->pages[index + i]->index != pgidx + i) + if (pages[index + i]->index != pgidx + i) return false; - if (uptodate && !PageUptodate(pvec->pages[index + i])) + if (uptodate && !PageUptodate(pages[index + i])) return false; } diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 34a7a9affea0..0b159c555069 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2916,7 +2916,7 @@ static int f2fs_write_cache_pages(struct address_space *mapping, { int ret = 0; int done = 0, retry = 0; - struct pagevec pvec; + struct page *pages[F2FS_ONSTACK_PAGES]; struct f2fs_sb_info *sbi = F2FS_M_SB(mapping); struct bio *bio = NULL; sector_t last_block; @@ -2947,8 +2947,6 @@ static int f2fs_write_cache_pages(struct address_space *mapping, int submitted = 0; int i; - pagevec_init(&pvec); - if (get_dirty_pages(mapping->host) <= SM_I(F2FS_M_SB(mapping))->min_hot_blocks) set_inode_flag(mapping->host, FI_HOT_DATA); @@ -2974,13 +2972,13 @@ retry: tag_pages_for_writeback(mapping, index, end); done_index = index; while (!done && !retry && (index <= end)) { - nr_pages = pagevec_lookup_range_tag(&pvec, mapping, &index, end, - tag); + nr_pages = find_get_pages_range_tag(mapping, &index, end, + tag, F2FS_ONSTACK_PAGES, pages); if (nr_pages == 0) break; for (i = 0; i < nr_pages; i++) { - struct page *page = pvec.pages[i]; + struct page *page = pages[i]; bool need_readd; readd: need_readd = false; @@ -3012,7 +3010,7 @@ readd: goto lock_page; if (f2fs_all_cluster_page_ready(&cc, - &pvec, i, nr_pages, true)) + pages, i, nr_pages, true)) goto lock_page; ret2 = f2fs_prepare_compress_overwrite( @@ -3026,7 +3024,7 @@ readd: (!f2fs_compress_write_end(inode, fsdata, page->index, 1) || !f2fs_all_cluster_page_ready(&cc, - &pvec, i, nr_pages, false))) { + pages, i, nr_pages, false))) { retry = 1; break; } @@ -3116,7 +3114,7 @@ next: if (need_readd) goto readd; } - pagevec_release(&pvec); + release_pages(pages, nr_pages); cond_resched(); } #ifdef CONFIG_F2FS_FS_COMPRESSION diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index 35383f5353a4..eddfd35eadb6 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -598,6 +598,8 @@ enum { #define RECOVERY_MAX_RA_BLOCKS BIO_MAX_VECS #define RECOVERY_MIN_RA_BLOCKS 1 +#define F2FS_ONSTACK_PAGES 16 /* nr of onstack pages */ + struct rb_entry { struct rb_node rb_node; /* rb node located in rb-tree */ union { @@ -4198,7 +4200,7 @@ void f2fs_end_read_compressed_page(struct page *page, bool failed, block_t blkaddr, bool in_task); bool f2fs_cluster_is_empty(struct compress_ctx *cc); bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index); -bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct pagevec *pvec, +bool f2fs_all_cluster_page_ready(struct compress_ctx *cc, struct page **pages, int index, int nr_pages, bool uptodate); bool f2fs_sanity_check_cluster(struct dnode_of_data *dn); void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page); |