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authorTheodore Ts'o <tytso@mit.edu>2014-09-04 18:07:25 -0400
committerTheodore Ts'o <tytso@mit.edu>2014-09-04 18:07:25 -0400
commite3cf5d5d9a86df1c5e413bdd3725c25a16ff854c (patch)
tree77a44d159efb7807419e6443584cc67f28929c10 /fs/ext4/indirect.c
parenta521100231f816f8cdd9c8e77da14ff1e42c2b17 (diff)
downloadlinux-e3cf5d5d9a86df1c5e413bdd3725c25a16ff854c.tar.bz2
ext4: prepare to drop EXT4_STATE_DELALLOC_RESERVED
The EXT4_STATE_DELALLOC_RESERVED flag was originally implemented because it was too hard to make sure the mballoc and get_block flags could be reliably passed down through all of the codepaths that end up calling ext4_mb_new_blocks(). Since then, we have mb_flags passed down through most of the code paths, so getting rid of EXT4_STATE_DELALLOC_RESERVED isn't as tricky as it used to. This commit plumbs in the last of what is required, and then adds a WARN_ON check to make sure we haven't missed anything. If this passes a full regression test run, we can then drop EXT4_STATE_DELALLOC_RESERVED. Signed-off-by: Theodore Ts'o <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/ext4/indirect.c')
-rw-r--r--fs/ext4/indirect.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 69af0cd64724..36b369697a13 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -333,7 +333,9 @@ static int ext4_alloc_branch(handle_t *handle,
new_blocks[i] = ext4_mb_new_blocks(handle, ar, &err);
} else
ar->goal = new_blocks[i] = ext4_new_meta_blocks(handle,
- ar->inode, ar->goal, 0, NULL, &err);
+ ar->inode, ar->goal,
+ ar->flags & EXT4_MB_DELALLOC_RESERVED,
+ NULL, &err);
if (err) {
i--;
goto failed;
@@ -572,6 +574,8 @@ int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
ar.logical = map->m_lblk;
if (S_ISREG(inode->i_mode))
ar.flags = EXT4_MB_HINT_DATA;
+ if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
+ ar.flags |= EXT4_MB_DELALLOC_RESERVED;
ar.goal = ext4_find_goal(inode, map->m_lblk, partial);