Messages in this thread Patch in this message | | | From | Jaegeuk Kim <> | Subject | [PATCH 2/2] f2fs: avoid writepage lock when many threads call fsync | Date | Fri, 11 Mar 2016 16:14:37 -0800 |
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If many threads try to write small number of data and fsync, we should avoid writepages lock contention.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org> --- fs/f2fs/data.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index e5c762b..fb75699 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1400,7 +1400,8 @@ static int f2fs_write_data_pages(struct address_space *mapping, diff = nr_pages_to_write(sbi, DATA, wbc); - if (!S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_ALL) { + if (!S_ISDIR(inode->i_mode) && wbc->sync_mode == WB_SYNC_ALL && + !is_inode_flag_set(F2FS_I(inode), FI_NEED_IPU)) { mutex_lock(&sbi->writepages); locked = true; } -- 2.6.3
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