#ifndef _FS_NFSD_PNFS_H
#define _FS_NFSD_PNFS_H 1

#ifdef CONFIG_NFSD_V4
#include <linux/exportfs.h>
#include <linux/nfsd/export.h>

#include "state.h"
#include "xdr4.h"

struct xdr_stream;

struct nfsd4_deviceid_map {
	struct list_head	hash;
	u64			idx;
	int			fsid_type;
	u32			fsid[];
};

struct nfsd4_layout_ops {
	u32		notify_types;
	bool		disable_recalls;

	__be32 (*proc_getdeviceinfo)(struct super_block *sb,
			struct svc_rqst *rqstp,
			struct nfs4_client *clp,
			struct nfsd4_getdeviceinfo *gdevp);
	__be32 (*encode_getdeviceinfo)(struct xdr_stream *xdr,
			struct nfsd4_getdeviceinfo *gdevp);

	__be32 (*proc_layoutget)(struct inode *, const struct svc_fh *fhp,
			struct nfsd4_layoutget *lgp);
	__be32 (*encode_layoutget)(struct xdr_stream *,
			struct nfsd4_layoutget *lgp);

	__be32 (*proc_layoutcommit)(struct inode *inode,
			struct nfsd4_layoutcommit *lcp);

	void (*fence_client)(struct nfs4_layout_stateid *ls);
};

extern const struct nfsd4_layout_ops *nfsd4_layout_ops[];
#ifdef CONFIG_NFSD_BLOCKLAYOUT
extern const struct nfsd4_layout_ops bl_layout_ops;
#endif
#ifdef CONFIG_NFSD_SCSILAYOUT
extern const struct nfsd4_layout_ops scsi_layout_ops;
#endif
#ifdef CONFIG_NFSD_FLEXFILELAYOUT
extern const struct nfsd4_layout_ops ff_layout_ops;
#endif

__be32 nfsd4_preprocess_layout_stateid(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *cstate, stateid_t *stateid,
		bool create, u32 layout_type, struct nfs4_layout_stateid **lsp);
__be32 nfsd4_insert_layout(struct nfsd4_layoutget *lgp,
		struct nfs4_layout_stateid *ls);
__be32 nfsd4_return_file_layouts(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *cstate,
		struct nfsd4_layoutreturn *lrp);
__be32 nfsd4_return_client_layouts(struct svc_rqst *rqstp,
		struct nfsd4_compound_state *cstate,
		struct nfsd4_layoutreturn *lrp);
int nfsd4_set_deviceid(struct nfsd4_deviceid *id, const struct svc_fh *fhp,
		u32 device_generation);
struct nfsd4_deviceid_map *nfsd4_find_devid_map(int idx);
#endif /* CONFIG_NFSD_V4 */

#ifdef CONFIG_NFSD_PNFS
void nfsd4_setup_layout_type(struct svc_export *exp);
void nfsd4_return_all_client_layouts(struct nfs4_client *);
void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
		struct nfs4_file *fp);
int nfsd4_init_pnfs(void);
void nfsd4_exit_pnfs(void);
#else
struct nfs4_client;
struct nfs4_file;

static inline void nfsd4_setup_layout_type(struct svc_export *exp)
{
}

static inline void nfsd4_return_all_client_layouts(struct nfs4_client *clp)
{
}
static inline void nfsd4_return_all_file_layouts(struct nfs4_client *clp,
		struct nfs4_file *fp)
{
}
static inline void nfsd4_exit_pnfs(void)
{
}
static inline int nfsd4_init_pnfs(void)
{
	return 0;
}
#endif /* CONFIG_NFSD_PNFS */
#endif /* _FS_NFSD_PNFS_H */
945551b63ecb1a349d50a6d69d1d6feb4a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/rdma?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>rdma</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/iw_cm.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>iw_cm.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='07cd12945551b63ecb1a349d50a6d69d1d6feb4a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>committer</th><td>Tejun Heo &lt;tj@kernel.org&gt;</td><td class='right'>2017-01-26 16:47:28 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/iw_cm.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>07cd12945551b63ecb1a349d50a6d69d1d6feb4a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/rdma/iw_cm.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>75f65eba7eac9277971082a2d5a4cf1370562c0c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/rdma/iw_cm.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>include/rdma/iw_cm.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/rdma/iw_cm.h?id=7ce7d89f48834cefece7804d38fc5d85382edf77'>7ce7d89f48834cefece7804d38fc5d85382edf77</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/rdma/iw_cm.h?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a&amp;id2=7ce7d89f48834cefece7804d38fc5d85382edf77'>diff</a>)</td></tr></table>
<div class='commit-subject'>cgroup: don't online subsystems before cgroup_name/path() are operational</div><div class='commit-msg'>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 &lt;tj@kernel.org&gt;
Reported-by: Konstantin Khlebnikov &lt;khlebnikov@yandex-team.ru&gt;
Fixes: a5bca2152036 ("cgroup: factor out cgroup_create() out of cgroup_mkdir()") 
Cc: stable@vger.kernel.org # v4.6+
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=07cd12945551b63ecb1a349d50a6d69d1d6feb4a'>Diffstat</a> (limited to 'include/rdma/iw_cm.h')</div><table summary='diffstat' class='diffstat'>