Commit 3bd6ad7b authored by Jan Kara's avatar Jan Kara Committed by Theodore Ts'o

ext4: pack ioend structure better

On 64-bit architectures we have two 4-byte holes in struct ext4_io_end.
Order entries better to avoid this and thus make the structure occupy
64 instead of 72 bytes for 64-bit architectures.
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent cb0d9d47
...@@ -182,9 +182,9 @@ typedef struct ext4_io_end { ...@@ -182,9 +182,9 @@ typedef struct ext4_io_end {
struct bio *bio; /* Linked list of completed struct bio *bio; /* Linked list of completed
* bios covering the extent */ * bios covering the extent */
unsigned int flag; /* unwritten or not */ unsigned int flag; /* unwritten or not */
atomic_t count; /* reference counter */
loff_t offset; /* offset in the file */ loff_t offset; /* offset in the file */
ssize_t size; /* size of the extent */ ssize_t size; /* size of the extent */
atomic_t count; /* reference counter */
} ext4_io_end_t; } ext4_io_end_t;
struct ext4_io_submit { struct ext4_io_submit {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment