Signed-off-by: Li Wang <liw...@ubuntukylin.com>
Signed-off-by: Yunchuan Wen <yunchuan...@ubuntukylin.com>
---
mm/fadvise.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 3bcfd81..644d32d 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -113,6 +113,10 @@ SYSCALL_DEFINE4(fadvise64_64, int, fd, loff_t, offset,
loff_t, len, int, advice)
case POSIX_FADV_NOREUSE:
break;
case POSIX_FADV_DONTNEED:
+ if (S_ISDIR(file_inode(f.file)->i_mode)) {
+ shrink_pagecache_parent(f.file->f_dentry);
+ goto out;
+ }
if (!bdi_write_congested(mapping->backing_dev_info))
__filemap_fdatawrite_range(mapping, offset, endbyte,
WB_SYNC_NONE);
--
1.7.9.5
--
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