From: Jaegeuk Kim jaegeuk@kernel.org
commit 3aa51c61cb4a4dcb40df51ac61171e9ac5a35321 upstream.
If the storage gives a corrupted node block due to short power failure and reset, f2fs stops the entire operations by setting the checkpoint failure flag.
Let's give more chances to live by re-issuing IOs for a while in such critical path.
Cc: stable@vger.kernel.org Suggested-by: Randall Huang huangrandall@google.com Suggested-by: Chao Yu chao@kernel.org Reviewed-by: Chao Yu chao@kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/f2fs/inode.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-)
--- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -714,18 +714,19 @@ void f2fs_update_inode_page(struct inode { struct f2fs_sb_info *sbi = F2FS_I_SB(inode); struct page *node_page; + int count = 0; retry: node_page = f2fs_get_node_page(sbi, inode->i_ino); if (IS_ERR(node_page)) { int err = PTR_ERR(node_page);
- if (err == -ENOMEM) { - cond_resched(); + /* The node block was truncated. */ + if (err == -ENOENT) + return; + + if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT) goto retry; - } else if (err != -ENOENT) { - f2fs_stop_checkpoint(sbi, false, - STOP_CP_REASON_UPDATE_INODE); - } + f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE); return; } f2fs_update_inode(inode, node_page);