Hi,
with current git version 1.10 (79536f4f9587703c7136d2654824630689880f5c):
struct btrfs_path {
struct extent_buffer * nodes[8]; /* 0 64 */
/* --- cacheline 1 boundary (64 bytes) --- */
int slots[8]; /* 64 32 */
int locks[8]; /* 96 32 */
/* --- cacheline 2 boundary (128 bytes) --- */
u8 reada; /* 128 1 */
u8 lowest_level; /* 129 1 */
/* Bitfield combined with previous fields */
unsigned int search_for_split:1; /* 128:15 4 */
unsigned int keep_locks:1; /* 128:14 4 */
unsigned int skip_locking:1; /* 128:13 4 */
unsigned int leave_spinning:1; /* 128:12 4 */
unsigned int search_commit_root:1; /* 128:11 4 */
unsigned int need_commit_sem:1; /* 128:10 4 */
unsigned int skip_release_on_error:1; /* 128: 9 4 */
/* size: 136, cachelines: 3, members: 12 */
/* padding: 4 */
/* bit_padding: 25 bits */
/* last cacheline: 8 bytes */
/* BRAIN FART ALERT! 136 != 136 + 0(holes), diff = 0 */
};
Looks like it's the bitfield combining.
$ gcc --version
gcc (SUSE Linux) 4.5.1 20101208 [gcc-4_5-branch revision 167585]
binutils-2.23.2
Let me know if you need more information.
Thanks.
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