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authorEric Paris <eparis@redhat.com>2009-08-07 16:54:23 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-09-24 03:50:25 -0400
commite08b061ec0fca1f63bb1006bf1edc0556f36d0ae (patch)
tree71a286a55b7707f7bfdc759a7b1ab03e3f2a3755 /fs/xattr.c
parent94a8d5caba74211ec76dac80fc6e2d5c391530df (diff)
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Audit: reorganize struct audit_watch to save 8 bytes
pahole showed that struct audit_watch had two holes: struct audit_watch { atomic_t count; /* 0 4 */ /* XXX 4 bytes hole, try to pack */ char * path; /* 8 8 */ dev_t dev; /* 16 4 */ /* XXX 4 bytes hole, try to pack */ long unsigned int ino; /* 24 8 */ struct audit_parent * parent; /* 32 8 */ struct list_head wlist; /* 40 16 */ struct list_head rules; /* 56 16 */ /* --- cacheline 1 boundary (64 bytes) was 8 bytes ago --- */ /* size: 72, cachelines: 2, members: 7 */ /* sum members: 64, holes: 2, sum holes: 8 */ /* last cacheline: 8 bytes */ }; /* definitions: 1 */ by moving dev after count we save 8 bytes, actually improving cacheline usage. There are typically very few of these in the kernel so it won't be a large savings, but it's a good thing no matter what. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/xattr.c')
0 files changed, 0 insertions, 0 deletions