When write total cluster, all pages is uptodate, there is not need to call
f2fs_prepare_compress_overwrite, intorduce f2fs_all_cluster_page_ready
to avoid this.
Signed-off-by: Fengnan Chang
---
fs/f2fs/compress.c | 11 ---
fs/f2fs/data.c | 9 +++--
fs/f2fs/f2fs.h | 4 ++--
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
---
fs/f2fs/compre
Try to support compressed file write and amplifiction accounting.
Signed-off-by: Fengnan Chang
---
fs/f2fs/data.c | 19 +++
fs/f2fs/debug.c | 7 +--
fs/f2fs/f2fs.h | 34 ++
3 files changed, 54 insertions(+), 6 deletions(-)
diff --git a/fs/f
Optimise f2fs_write_cache_pages, and support compressed file write/read
amplifiction accounting.
Fengnan Chang (3):
f2fs: intorduce f2fs_all_cluster_page_ready
f2fs: use onstack pages instead of pvec
f2fs: support compressed file write/read amplifiction
fs/f2fs/compress.c | 15 ++--
