diff options
| author | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-18 13:47:11 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2014-03-18 16:37:53 +0900 |
| commit | 50c8cdb35ad8016c52fb2326ef9d65542e3a3e1b (patch) | |
| tree | db261148aaa96080b35d61f8b1ac09d1fecb87a4 /fs/f2fs/node.c | |
| parent | d3baf95da5b0bce9fe980eeff6140817d63fabdf (diff) | |
| download | talos-obmc-linux-50c8cdb35ad8016c52fb2326ef9d65542e3a3e1b.tar.gz talos-obmc-linux-50c8cdb35ad8016c52fb2326ef9d65542e3a3e1b.zip | |
f2fs: introduce nr_pages_to_write for segment alignment
This patch introduces nr_pages_to_write to align page writes to the segment
or other operational unit size, which can be tuned according to the system
environment.
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 7cc146bcbfed..5e9c38e846a5 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1202,7 +1202,7 @@ static int f2fs_write_node_pages(struct address_space *mapping, struct writeback_control *wbc) { struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb); - long nr_to_write = wbc->nr_to_write; + long diff; /* balancing f2fs's metadata in background */ f2fs_balance_fs_bg(sbi); @@ -1211,12 +1211,10 @@ static int f2fs_write_node_pages(struct address_space *mapping, if (get_pages(sbi, F2FS_DIRTY_NODES) < nr_pages_to_skip(sbi, NODE)) goto skip_write; - /* if mounting is failed, skip writing node pages */ - wbc->nr_to_write = 3 * max_hw_blocks(sbi); + diff = nr_pages_to_write(sbi, NODE, wbc); wbc->sync_mode = WB_SYNC_NONE; sync_node_pages(sbi, 0, wbc); - wbc->nr_to_write = nr_to_write - (3 * max_hw_blocks(sbi) - - wbc->nr_to_write); + wbc->nr_to_write = max((long)0, wbc->nr_to_write - diff); return 0; skip_write: |
