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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-12-06 04:18:15 +0300 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2014-12-08 21:35:15 +0300 |
| commit | 8dcf2ff72120707f960d9b3b15ce6e50705b13a6 (patch) | |
| tree | bfc57918d72b70aeae3f7d6b79de8a06e20ed772 /fs/f2fs | |
| parent | 126622343a8488917c5e0891eae1bc936a63f49a (diff) | |
| download | linux-8dcf2ff72120707f960d9b3b15ce6e50705b13a6.tar.xz | |
f2fs: count the number of inmemory pages
This patch adds counting # of inmemory pages in the page cache.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/debug.c | 3 | ||||
| -rw-r--r-- | fs/f2fs/f2fs.h | 3 | ||||
| -rw-r--r-- | fs/f2fs/segment.c | 3 |
3 files changed, 8 insertions, 1 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 40b679ce35d9..4e2e39c0ba69 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -39,6 +39,7 @@ static void update_general_status(struct f2fs_sb_info *sbi) si->ndirty_dent = get_pages(sbi, F2FS_DIRTY_DENTS); si->ndirty_dirs = sbi->n_dirty_dirs; si->ndirty_meta = get_pages(sbi, F2FS_DIRTY_META); + si->inmem_pages = get_pages(sbi, F2FS_INMEM_PAGES); si->total_count = (int)sbi->user_block_count / sbi->blocks_per_seg; si->rsvd_segs = reserved_segments(sbi); si->overp_segs = overprovision_segments(sbi); @@ -249,6 +250,8 @@ static int stat_show(struct seq_file *s, void *v) seq_printf(s, "\nExtent Hit Ratio: %d / %d\n", si->hit_ext, si->total_ext); seq_puts(s, "\nBalancing F2FS Async:\n"); + seq_printf(s, " - inmem: %4d\n", + si->inmem_pages); seq_printf(s, " - nodes: %4d in %4d\n", si->ndirty_node, si->node_pages); seq_printf(s, " - dents: %4d in dirs:%4d\n", diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h index c787fe302918..f60b817a7f0d 100644 --- a/fs/f2fs/f2fs.h +++ b/fs/f2fs/f2fs.h @@ -462,6 +462,7 @@ enum count_type { F2FS_DIRTY_DENTS, F2FS_DIRTY_NODES, F2FS_DIRTY_META, + F2FS_INMEM_PAGES, NR_COUNT_TYPE, }; @@ -1498,7 +1499,7 @@ struct f2fs_stat_info { int ndirty_node, ndirty_dent, ndirty_dirs, ndirty_meta; int nats, sits, fnids; int total_count, utilization; - int bg_gc, inline_inode, inline_dir; + int bg_gc, inline_inode, inline_dir, inmem_pages; unsigned int valid_count, valid_node_count, valid_inode_count; unsigned int bimodal, avg_vblocks; int util_free, util_valid, util_invalid; diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c index 3ebcf96bc5f3..42607a679923 100644 --- a/fs/f2fs/segment.c +++ b/fs/f2fs/segment.c @@ -201,6 +201,7 @@ retry: } get_page(page); list_add_tail(&new->list, &fi->inmem_pages); + inc_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); mutex_unlock(&fi->inmem_lock); } @@ -216,6 +217,7 @@ void invalidate_inmem_page(struct inode *inode, struct page *page) f2fs_put_page(cur->page, 0); list_del(&cur->list); kmem_cache_free(inmem_entry_slab, cur); + dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); } mutex_unlock(&fi->inmem_lock); } @@ -257,6 +259,7 @@ void commit_inmem_pages(struct inode *inode, bool abort) f2fs_put_page(cur->page, 1); list_del(&cur->list); kmem_cache_free(inmem_entry_slab, cur); + dec_page_count(F2FS_I_SB(inode), F2FS_INMEM_PAGES); } if (submit_bio) f2fs_submit_merged_bio(sbi, DATA, WRITE); |