If there is not enough space left, f2fs_preallocate_blocks may only
preallocte partial blocks. As a result, the write operation fails
but i_blocks is not 0. To avoid this, f2fs should write data in
non-preallocation way and write as many data as the size of i_blocks.
Signed-off-by: Sheng Yong <shengyo...@huawei.com>
---
fs/f2fs/data.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index b0781edc9ada..e593df628158 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -862,8 +862,14 @@ int f2fs_preallocate_blocks(struct kiocb *iocb, struct
iov_iter *from)
if (err)
return err;
}
- if (!f2fs_has_inline_data(inode))
- return f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ if (!f2fs_has_inline_data(inode)) {
+ err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+ if (map.m_len > 0 && err == -ENOSPC) {
+ set_inode_flag(inode, FI_NO_PREALLOC);
+ err = 0;
+ }
+ return err;
+ }
return err;
}
--
2.11.0
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