From 0080c5076409d211fbe28d6f07966f7d39e58bad Mon Sep 17 00:00:00 2001 From: Jaegeuk Kim Date: Sat, 7 May 2016 08:52:57 -0700 Subject: [PATCH] f2fs: do not preallocate block unaligned to 4KB Previously f2fs_preallocate_blocks() tries to allocate unaligned blocks. In f2fs_write_begin(), however, prepare_write_begin() does not skip its allocation due to (len != 4KB). So, it needs locking node page twice unexpectedly. Signed-off-by: Jaegeuk Kim --- fs/f2fs/data.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 96b035319889..369d953bd770 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -582,8 +582,8 @@ ssize_t f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *from) struct f2fs_map_blocks map; ssize_t ret = 0; - map.m_lblk = F2FS_BYTES_TO_BLK(iocb->ki_pos); - map.m_len = F2FS_BLK_ALIGN(iov_iter_count(from)); + map.m_lblk = F2FS_BLK_ALIGN(iocb->ki_pos); + map.m_len = F2FS_BYTES_TO_BLK(iov_iter_count(from)); map.m_next_pgofs = NULL; if (f2fs_encrypted_inode(inode)) -- 2.30.2