1 ext4: drop the EXT4_STATE_DELALLOC_RESERVED flag
3 Having done a full regression test, we can now drop the
4 DELALLOC_RESERVED state flag.
6 Signed-off-by: Theodore Ts'o <tytso@mit.edu>
7 Reviewed-by: Jan Kara <jack@suse.cz>
10 fs/ext4/inode.c | 20 ++++----------------
11 fs/ext4/mballoc.c | 10 ----------
12 3 files changed, 4 insertions(+), 27 deletions(-)
14 diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
15 index 00fd822..4855800 100644
18 @@ -1400,7 +1400,6 @@ enum {
19 EXT4_STATE_EXT_MIGRATE, /* Inode is migrating */
20 EXT4_STATE_DIO_UNWRITTEN, /* need convert on dio done*/
21 EXT4_STATE_NEWENTRY, /* File just added to dir */
22 - EXT4_STATE_DELALLOC_RESERVED, /* blks already reserved for delalloc */
23 EXT4_STATE_DIOREAD_LOCK, /* Disable support for dio read
25 EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */
26 diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
27 index 4a16b0c..d5dd7d4 100644
30 @@ -596,14 +596,6 @@ found:
31 down_write(&EXT4_I(inode)->i_data_sem);
34 - * if the caller is from delayed allocation writeout path
35 - * we have already reserved fs blocks for allocation
36 - * let the underlying get_block() function know to
37 - * avoid double accounting
39 - if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
40 - ext4_set_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED);
42 * We need to check for EXT4 here because migrate
43 * could have changed the inode type in between
45 @@ -631,8 +623,6 @@ found:
46 (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE))
47 ext4_da_update_reserve_space(inode, retval, 1);
49 - if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)
50 - ext4_clear_inode_state(inode, EXT4_STATE_DELALLOC_RESERVED);
54 @@ -2004,12 +1994,10 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
55 * in data loss. So use reserved blocks to allocate metadata if
58 - * We pass in the magic EXT4_GET_BLOCKS_DELALLOC_RESERVE if the blocks
59 - * in question are delalloc blocks. This affects functions in many
60 - * different parts of the allocation call path. This flag exists
61 - * primarily because we don't want to change *many* call functions, so
62 - * ext4_map_blocks() will set the EXT4_STATE_DELALLOC_RESERVED flag
63 - * once the inode's allocation semaphore is taken.
64 + * We pass in the magic EXT4_GET_BLOCKS_DELALLOC_RESERVE if
65 + * the blocks in question are delalloc blocks. This indicates
66 + * that the blocks and quotas has already been checked when
67 + * the data was copied into the page cache.
69 get_blocks_flags = EXT4_GET_BLOCKS_CREATE |
70 EXT4_GET_BLOCKS_METADATA_NOFAIL;
71 diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
72 index 15dffda..65cca28 100644
73 --- a/fs/ext4/mballoc.c
74 +++ b/fs/ext4/mballoc.c
75 @@ -4410,16 +4410,6 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
76 if (IS_NOQUOTA(ar->inode))
77 ar->flags |= EXT4_MB_USE_ROOT_BLOCKS;
80 - * For delayed allocation, we could skip the ENOSPC and
81 - * EDQUOT check, as blocks and quotas have been already
82 - * reserved when data being copied into pagecache.
84 - if (ext4_test_inode_state(ar->inode, EXT4_STATE_DELALLOC_RESERVED)) {
85 - WARN_ON((ar->flags & EXT4_MB_DELALLOC_RESERVED) == 0);
86 - ar->flags |= EXT4_MB_DELALLOC_RESERVED;
89 if ((ar->flags & EXT4_MB_DELALLOC_RESERVED) == 0) {
90 /* Without delayed allocation we need to verify
91 * there is enough free blocks to do block allocation