diff options
| author | Jaegeuk Kim <jaegeuk@kernel.org> | 2016-06-02 15:24:24 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:33:44 +0200 |
| commit | d8a895984e4de73fcbc4addeec2f39e80633f96c (patch) | |
| tree | b9753b9c4b8df35076cdca1eba946552628038f5 /fs/f2fs/node.c | |
| parent | 6c333eebdd9a955a8411f0586c66d954b2711f7a (diff) | |
f2fs: control not to exceed # of cached nat entries
This is to avoid cache entry management overhead including radix tree.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/node.c')
| -rw-r--r-- | fs/f2fs/node.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 33c2d6c9c..da445f412 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -62,6 +62,10 @@ bool available_free_memory(struct f2fs_sb_info *sbi, int type) mem_size = (nm_i->nat_cnt * sizeof(struct nat_entry)) >> PAGE_SHIFT; res = mem_size < ((avail_ram * nm_i->ram_thresh / 100) >> 2); + if (excess_cached_nats(sbi)) + res = false; + if (nm_i->nat_cnt > DEF_NAT_CACHE_THRESHOLD) + res = false; } else if (type == DIRTY_DENTS) { if (sbi->sb->s_bdi->dirty_exceeded) return false; |