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Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

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Pull vfs mount infrastructure updates from Al Viro:
 "The rest of core infrastructure; no new syscalls in that pile, but the
  old parts are switched to new infrastructure. At that point
  conversions of individual filesystems can happen independently; some
  are done here (afs, cgroup, procfs, etc.), there's also a large series
  outside of that pile dealing with NFS (quite a bit of option-parsing
  stuff is getting used there - it's one of the most convoluted
  filesystems in terms of mount-related logics), but NFS bits are the
  next cycle fodder.

  It got seriously simplified since the last cycle; documentation is
  probably the weakest bit at the moment - I considered dropping the
  commit introducing Documentation/filesystems/mount_api.txt (cutting
  the size increase by quarter ;-), but decided that it would be better
  to fix it up after -rc1 instead.

  That pile allows to do followup work in independent branches, which
  should make life much easier for the next cycle. fs/super.c size
  increase is unpleasant; there's a followup series that allows to
  shrink it considerably, but I decided to leave that until the next
  cycle"

* 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits)
  afs: Use fs_context to pass parameters over automount
  afs: Add fs_context support
  vfs: Add some logging to the core users of the fs_context log
  vfs: Implement logging through fs_context
  vfs: Provide documentation for new mount API
  vfs: Remove kern_mount_data()
  hugetlbfs: Convert to fs_context
  cpuset: Use fs_context
  kernfs, sysfs, cgroup, intel_rdt: Support fs_context
  cgroup: store a reference to cgroup_ns into cgroup_fs_context
  cgroup1_get_tree(): separate "get cgroup_root to use" into a separate helper
  cgroup_do_mount(): massage calling conventions
  cgroup: stash cgroup_root reference into cgroup_fs_context
  cgroup2: switch to option-by-option parsing
  cgroup1: switch to option-by-option parsing
  cgroup: take options parsing into ->parse_monolithic()
  cgroup: fold cgroup1_mount() into cgroup1_get_tree()
  cgroup: start switching to fs_context
  ipc: Convert mqueue fs to fs_context
  proc: Add fs_context support to procfs
  ...
This commit is contained in:
Linus Torvalds 2019-03-12 14:08:19 -07:00
commit 7b47a9e7c8
45 changed files with 4377 additions and 1352 deletions
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18
include/linux/security.h
View file

@ -53,6 +53,9 @@ struct msg_msg;
struct xattr;
struct xfrm_sec_ctx;
struct mm_struct;
struct fs_context;
struct fs_parameter;
enum fs_value_type;
/* Default (no) options for the capable function */
#define CAP_OPT_NONE 0x0
@ -61,7 +64,7 @@ struct mm_struct;
/* If capable is being called by a setid function */
#define CAP_OPT_INSETID BIT(2)
/* LSM Agnostic defines for sb_set_mnt_opts */
/* LSM Agnostic defines for fs_context::lsm_flags */
#define SECURITY_LSM_NATIVE_LABELS 1
struct ctl_table;
@ -223,6 +226,8 @@ int security_bprm_set_creds(struct linux_binprm *bprm);
int security_bprm_check(struct linux_binprm *bprm);
void security_bprm_committing_creds(struct linux_binprm *bprm);
void security_bprm_committed_creds(struct linux_binprm *bprm);
int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
void security_free_mnt_opts(void **mnt_opts);
@ -519,6 +524,17 @@ static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
{
}
static inline int security_fs_context_dup(struct fs_context *fc,
struct fs_context *src_fc)
{
return 0;
}
static inline int security_fs_context_parse_param(struct fs_context *fc,
struct fs_parameter *param)
{
return -ENOPARAM;
}
static inline int security_sb_alloc(struct super_block *sb)
{
return 0;