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| author | Theodore Ts'o <tytso@mit.edu> | 2011-01-10 12:13:42 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-01-10 12:13:42 -0500 |
| commit | 8a2005d3f84457b7d7d8646ab5195341d9e5f06a (patch) | |
| tree | 4d94161103e806435745e1544fb24e6398b2e06b /fs/ext4 | |
| parent | b05e6ae58a13b56e3e11882c1fc71948c9b29760 (diff) | |
| download | talos-op-linux-8a2005d3f84457b7d7d8646ab5195341d9e5f06a.tar.gz talos-op-linux-8a2005d3f84457b7d7d8646ab5195341d9e5f06a.zip | |
ext4: reorder ext4_inode_info structure elements to remove unneeded padding
By reordering the elements in the ext4_inode_info structure, we can
reduce the padding needed on an x86_64 system by 16 bytes.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4')
| -rw-r--r-- | fs/ext4/ext4.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index de937fc10503..50e3d24483fb 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -763,10 +763,10 @@ struct ext4_inode_info { * near to their parent directory's inode. */ ext4_group_t i_block_group; + ext4_lblk_t i_dir_start_lookup; unsigned long i_state_flags; /* Dynamic state flags */ unsigned long i_flags; - ext4_lblk_t i_dir_start_lookup; #ifdef CONFIG_EXT4_FS_XATTR /* * Extended attributes can be read independently of the main file @@ -835,7 +835,6 @@ struct ext4_inode_info { /* on-disk additional length */ __u16 i_extra_isize; - spinlock_t i_block_reservation_lock; #ifdef CONFIG_QUOTA /* quota space reservation, managed internally by quota code */ qsize_t i_reserved_quota; @@ -844,9 +843,11 @@ struct ext4_inode_info { /* completed IOs that might need unwritten extents handling */ struct list_head i_completed_io_list; spinlock_t i_completed_io_lock; + atomic_t i_ioend_count; /* Number of outstanding io_end structs */ /* current io_end structure for async DIO write*/ ext4_io_end_t *cur_aio_dio; - atomic_t i_ioend_count; /* Number of outstanding io_end structs */ + + spinlock_t i_block_reservation_lock; /* * Transactions that contain inode's metadata needed to complete |
