/* * Definitions of structures for vfsv0 quota format */ #ifndef _LINUX_QUOTAIO_V2_H #define _LINUX_QUOTAIO_V2_H #include #include /* * Definitions of magics and versions of current quota files */ #define V2_INITQMAGICS {\ 0xd9c01f11, /* USRQUOTA */\ 0xd9c01927, /* GRPQUOTA */\ 0xd9c03f14, /* PRJQUOTA */\ } #define V2_INITQVERSIONS {\ 1, /* USRQUOTA */\ 1, /* GRPQUOTA */\ 1, /* PRJQUOTA */\ } /* First generic header */ struct v2_disk_dqheader { __le32 dqh_magic; /* Magic number identifying file */ __le32 dqh_version; /* File version */ }; /* * The following structure defines the format of the disk quota file * (as it appears on disk) - the file is a radix tree whose leaves point * to blocks of these structures. */ struct v2r0_disk_dqblk { __le32 dqb_id; /* id this quota applies to */ __le32 dqb_ihardlimit; /* absolute limit on allocated inodes */ __le32 dqb_isoftlimit; /* preferred inode limit */ __le32 dqb_curinodes; /* current # allocated inodes */ __le32 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ __le32 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ __le64 dqb_curspace; /* current space occupied (in bytes) */ __le64 dqb_btime; /* time limit for excessive disk use */ __le64 dqb_itime; /* time limit for excessive inode use */ }; struct v2r1_disk_dqblk { __le32 dqb_id; /* id this quota applies to */ __le32 dqb_pad; __le64 dqb_ihardlimit; /* absolute limit on allocated inodes */ __le64 dqb_isoftlimit; /* preferred inode limit */ __le64 dqb_curinodes; /* current # allocated inodes */ __le64 dqb_bhardlimit; /* absolute limit on disk space (in QUOTABLOCK_SIZE) */ __le64 dqb_bsoftlimit; /* preferred limit on disk space (in QUOTABLOCK_SIZE) */ __le64 dqb_curspace; /* current space occupied (in bytes) */ __le64 dqb_btime; /* time limit for excessive disk use */ __le64 dqb_itime; /* time limit for excessive inode use */ }; /* Header with type and version specific information */ struct v2_disk_dqinfo { __le32 dqi_bgrace; /* Time before block soft limit becomes hard limit */ __le32 dqi_igrace; /* Time before inode soft limit becomes hard limit */ __le32 dqi_flags; /* Flags for quotafile (DQF_*) */ __le32 dqi_blocks; /* Number of blocks in file */ __le32 dqi_free_blk; /* Number of first free block in the list */ __le32 dqi_free_entry; /* Number of block with at least one free entry */ }; #define V2_DQINFOOFF sizeof(struct v2_disk_dqheader) /* Offset of info header in file */ #define V2_DQBLKSIZE_BITS 10 /* Size of leaf block in tree */ #endif /* _LINUX_QUOTAIO_V2_H */ r'>author
path: root/include/net/nexthop.h
diff options
context:
space:
mode:
authorTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
committerTejun Heo <tj@kernel.org>2017-01-26 16:47:28 -0500
commit07cd12945551b63ecb1a349d50a6d69d1d6feb4a (patch)
tree75f65eba7eac9277971082a2d5a4cf1370562c0c /include/net/nexthop.h
parent7ce7d89f48834cefece7804d38fc5d85382edf77 (diff)
cgroup: don't online subsystems before cgroup_name/path() are operational
While refactoring cgroup creation, a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") incorrectly onlined subsystems before the new cgroup is associated with it kernfs_node. This is fine for cgroup proper but cgroup_name/path() depend on the associated kernfs_node and if a subsystem makes the new cgroup_subsys_state visible, which they're allowed to after onlining, it can lead to NULL dereference. The current code performs cgroup creation and subsystem onlining in cgroup_create() and cgroup_mkdir() makes the cgroup and subsystems visible afterwards. There's no reason to online the subsystems early and we can simply drop cgroup_apply_control_enable() call from cgroup_create() so that the subsystems are onlined and made visible at the same time. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") Cc: stable@vger.kernel.org # v4.6+
Diffstat (limited to 'include/net/nexthop.h')