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| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-19 04:05:57 +0200 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2017-10-26 10:44:21 +0200 |
| commit | 57864ae5ce3ab5c6e3137dd03edefdb2e5531ba1 (patch) | |
| tree | 759d8b6d20e4c1eae6ea718708288ba484b0e778 /fs/f2fs/super.c | |
| parent | f2fs: update ctx->pos correctly when hitting hole in directory (diff) | |
| download | linux-57864ae5ce3ab5c6e3137dd03edefdb2e5531ba1.tar.xz linux-57864ae5ce3ab5c6e3137dd03edefdb2e5531ba1.zip | |
f2fs: limit # of inmemory pages
If some abnormal users try lots of atomic write operations, f2fs is able to
produce pinned pages in the main memory which affects system performance.
This patch limits that as 20% over total memory size, and if f2fs reaches
to the limit, it will drop all the inmemory pages.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | fs/f2fs/super.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index dce5c4e48e23..21e524ecdb1d 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -625,6 +625,7 @@ static struct inode *f2fs_alloc_inode(struct super_block *sb) init_rwsem(&fi->i_sem); INIT_LIST_HEAD(&fi->dirty_list); INIT_LIST_HEAD(&fi->gdirty_list); + INIT_LIST_HEAD(&fi->inmem_ilist); INIT_LIST_HEAD(&fi->inmem_pages); mutex_init(&fi->inmem_lock); init_rwsem(&fi->dio_rwsem[READ]); |