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authorChao Yu <chao2.yu@samsung.com>2015-07-28 12:36:47 +0200
committerJaegeuk Kim <jaegeuk@kernel.org>2015-08-05 17:19:21 +0200
commite90c2d2850d9d034e814a328725a4b15878f0357 (patch)
treeb9709c15f56af0c3d76dd717033a1e08e25ac2ee /fs/f2fs/recovery.c
parentf2fs: fix to release inode page correctly (diff)
downloadlinux-e90c2d2850d9d034e814a328725a4b15878f0357.tar.xz
linux-e90c2d2850d9d034e814a328725a4b15878f0357.zip
f2fs: invalidate temporary meta page
To avoid meeting garbage data in next free node block at the end of warm node chain when doing recovery, we will try to zero out that invalid block. If the device is not support discard, our way for zeroing out block is: grabbing a temporary zeroed page in meta inode, then, issue write request with this page. But, we forget to release that temporary page, so our memory usage will increase without gaining any hit ratio benefit, so it's better to free it for saving memory. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/recovery.c')
-rw-r--r--fs/f2fs/recovery.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 24a8c1d4f45f..07a36e413ace 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -561,11 +561,20 @@ out:
clear_sbi_flag(sbi, SBI_POR_DOING);
if (err) {
- discard_next_dnode(sbi, blkaddr);
+ bool invalidate = false;
+
+ if (discard_next_dnode(sbi, blkaddr))
+ invalidate = true;
/* Flush all the NAT/SIT pages */
while (get_pages(sbi, F2FS_DIRTY_META))
sync_meta_pages(sbi, META, LONG_MAX);
+
+ /* invalidate temporary meta page */
+ if (invalidate)
+ invalidate_mapping_pages(META_MAPPING(sbi),
+ blkaddr, blkaddr);
+
set_ckpt_flags(sbi->ckpt, CP_ERROR_FLAG);
mutex_unlock(&sbi->cp_mutex);
} else if (need_writecp) {