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| author | Zheng Liu <wenqing.lz@taobao.com> | 2013-02-18 00:28:04 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2013-02-18 00:28:04 -0500 |
| commit | a25a4e1a5d5dc0f97dddbca44e695c532d8228c1 (patch) | |
| tree | 4c2c484e8f0fe68835f859ff85c66b1a3a6a5497 /fs/ext4/inode.c | |
| parent | be401363ac5ec652c706263a59b0bd0acc3612e8 (diff) | |
ext4: let ext4_ext_map_blocks return EXT4_MAP_UNWRITTEN flag
This commit lets ext4_ext_map_blocks return EXT4_MAP_UNWRITTEN flag
because in later commit ext4_map_blocks needs to use this flag to
determine the extent status.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4/inode.c')
| -rw-r--r-- | fs/ext4/inode.c | 12 |
1 files changed, 3 insertions, 9 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index e0e1cb0863f..084b8212cf9 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -559,16 +559,10 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode, return retval; /* - * When we call get_blocks without the create flag, the - * BH_Unwritten flag could have gotten set if the blocks - * requested were part of a uninitialized extent. We need to - * clear this flag now that we are committed to convert all or - * part of the uninitialized extent to be an initialized - * extent. This is because we need to avoid the combination - * of BH_Unwritten and BH_Mapped flags being simultaneously - * set on the buffer_head. + * Here we clear m_flags because after allocating an new extent, + * it will be set again. */ - map->m_flags &= ~EXT4_MAP_UNWRITTEN; + map->m_flags &= ~EXT4_MAP_FLAGS; /* * New blocks allocate and/or writing to uninitialized extent |