dir.c File Reference

#include <linux/version.h>
#include <linux/cred.h>
#include <linux/uidgid.h>
#include <linux/xattr.h>
#include "lib/trace.h"
#include "lib/misc.h"
#include "lib/memory.h"
#include "lib/bob.h"
#include "fop/fop.h"
#include "rpc/rpclib.h"
#include "rpc/rpc_opcodes.h"
#include "conf/helpers.h"
#include "motr/magic.h"
#include "layout/layout.h"
#include "layout/layout_internal.h"
#include "layout/pdclust.h"
#include "m0t1fs/linux_kernel/m0t1fs.h"

Include dependency graph for dir.c:

Go to the source code of this file.

Data Structures
struct	cob_req
struct	cob_fop

Macros
#define	M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_M0T1FS

Enumerations
enum	{ COB_REQ_DEADLINE = 2000000 }

Functions
static void	cob_rpc_item_cb (struct m0_rpc_item *item)
M0_INTERNAL void	m0t1fs_inode_bob_init (struct m0t1fs_inode *bob)
M0_INTERNAL bool	m0t1fs_inode_bob_check (struct m0t1fs_inode *bob)
static int	file_lock_acquire (struct m0_rm_incoming *rm_in, struct m0t1fs_inode *ci)
static void	file_lock_release (struct m0_rm_incoming *rm_in)
static int	m0t1fs_component_objects_op (struct m0t1fs_inode *ci, struct m0t1fs_mdop *mop, int(*func)(struct cob_req *, const struct m0t1fs_inode *, const struct m0t1fs_mdop *, int idx))
static int	m0t1fs_ios_cob_create (struct cob_req *cr, const struct m0t1fs_inode *inode, const struct m0t1fs_mdop *mop, int idx)
static int	m0t1fs_ios_cob_delete (struct cob_req *cr, const struct m0t1fs_inode *inode, const struct m0t1fs_mdop *mop, int idx)
static int	m0t1fs_ios_cob_setattr (struct cob_req *cr, const struct m0t1fs_inode *inode, const struct m0t1fs_mdop *mop, int idx)
static int	m0t1fs_ios_cob_truncate (struct cob_req *cr, const struct m0t1fs_inode *inode, const struct m0t1fs_mdop *mop, int idx)
static int	name_mem2wire (struct m0_fop_str *tgt, const struct m0_buf *name)
static void	body_mem2wire (struct m0_fop_cob *body, const struct m0_cob_attr *attr, int valid)
static void	body_wire2mem (struct m0_cob_attr *attr, const struct m0_fop_cob *body)
M0_INTERNAL int	m0t1fs_fs_conf_lock (struct m0t1fs_sb *csb)
M0_INTERNAL void	m0t1fs_fs_conf_unlock (struct m0t1fs_sb *csb)
void	m0t1fs_fid_alloc (struct m0t1fs_sb *csb, struct m0_fid *out)
void	m0t1fs_fid_accept (struct m0t1fs_sb *csb, const struct m0_fid *fid)
int	m0t1fs_inode_set_layout_id (struct m0t1fs_inode *ci, struct m0t1fs_mdop *mo, int layout_id)
int	m0t1fs_setxattr (const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *name, const void *value, size_t size, int flags) int m0t1fs_setxattr(struct dentry *dentry
	M0_ENTRY ("Setting %.*s's xattr %s=%.*s", dentry->d_name.len,(char *) dentry->d_name.name, name,(int) size,(char *) value)
	if (value==NULL)
else	if (m0_streq(name, "writesize"))
m0_buf_init &	mo (void *) value, size
	m0_fop_put0_lock (rep_fop)
return	M0_RC (rc)
int	m0t1fs_fid_getxattr (const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size) ssize_t m0t1fs_fid_getxattr(struct dentry *dentry
return	M0_ERR (-EOPNOTSUPP)
int	m0t1fs_getxattr (const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *name, void *buffer, size_t size) ssize_t m0t1fs_getxattr(struct dentry *dentry
	M0_ENTRY ("Getting %.*s's xattr %s", dentry->d_name.len,(char *) dentry->d_name.name, name)
	if (rc !=0)
	if (m0_streq(name, "lid"))
	if (csb->csb_oostore)
m0_buf_init &	mo (char *) dentry->d_name.name, dentry->d_name.len
	if (rc==0)
ssize_t	m0t1fs_listxattr (struct dentry *dentry, char *buffer, size_t size)
int	m0t1fs_fid_removexattr (struct dentry *dentry, const char *name)
int	m0t1fs_removexattr (struct dentry *dentry, const char *name)
static int	m0t1fs_fid_create (struct inode *dir, struct dentry *dentry, umode_t mode, bool excl) static int m0t1fs_fid_create(struct inode *dir
static int	m0t1fs_fid_check (struct m0_fid *fid)
static int	m0t1fs_create (struct inode *dir, struct dentry *dentry, umode_t mode, bool excl) static int m0t1fs_create(struct inode *dir
	M0_LOG (M0_DEBUG, "Creating \s\in pdir %lu "FID_F,(char *) dentry->d_name.name, dir->i_ino, FID_P(m0t1fs_inode_fid(M0T1FS_I(dir))))
	M0_LOG (M0_DEBUG, "New fid = "FID_F, FID_P(&new_fid))
	if (dir->i_mode &S_ISGID)
	if (S_ISDIR(mode))
	M0_LOG (M0_INFO, "Creating \s\with pool version "FID_F,(char *) dentry->d_name.name, FID_P(&ci->ci_pver))
	m0t1fs_file_lock_init (ci, csb)
	if (!csb->csb_oostore)
	if (S_ISREG(mode) &&csb->csb_oostore)
	if (insert_inode_locked4(inode, inode->i_ino, &m0t1fs_inode_test, &gfid)< 0)
	unlock_new_inode (inode)
	mark_inode_dirty (dir)
	d_instantiate (dentry, inode)
	m0t1fs_fs_conf_unlock (csb)
	if (i_err)
	M0_ADDB2_ADD (M0_AVI_FS_CREATE, new_fid.f_container, new_fid.f_key, mode, rc)
static int	m0t1fs_fid_mkdir (struct inode *dir, struct dentry *dentry, umode_t mode) static int m0t1fs_fid_mkdir(struct inode *dir
return	m0t1fs_fid_create (dir, dentry, mode|S_IFDIR, NULL)
static int	m0t1fs_mkdir (struct inode *dir, struct dentry *dentry, umode_t mode) static int m0t1fs_mkdir(struct inode *dir
return	m0t1fs_create (dir, dentry, mode|S_IFDIR, NULL)
static struct dentry *	m0t1fs_lookup (struct inode *dir, struct dentry *dentry, unsigned int flags) static struct dentry *m0t1fs_lookup(struct inode *dir
	m0_addb2_add (M0_AVI_FS_LOOKUP, M0_ADDB2_OBJ(&M0T1FS_I(dir) ->ci_fid))
	if (dentry->d_name.len > csb->csb_namelen)
	M0_LOG (M0_INFO, "Name: \s\,(char *) dentry->d_name.name)
	if (IS_ERR(inode))
	M0_LEAVE ()
return dcache_splice static d_splice_alias(inode, dentry) struct dentry *	m0t1fs_fid_lookup (struct inode *dir, struct dentry *dentry, unsigned int flags) static struct dentry *m0t1fs_fid_lookup(struct inode *dir
return	m0t1fs_lookup (dir, dentry, flags)
return	m0t1fs_lookup (dir, dentry, nd)
struct m0_dirent *	dirent_next (struct m0_dirent *ent)
struct m0_dirent *	dirent_first (struct m0_fop_readdir_rep *rep)
static int	m0t1fs_opendir (struct inode *inode, struct file *file)
static int	m0t1fs_fid_opendir (struct inode *inode, struct file *file)
static int	m0t1fs_releasedir (struct inode *inode, struct file *file)
static int	m0t1fs_fid_releasedir (struct inode *inode, struct file *file)
static int	m0t1fs_fid_readdir (struct file *f, struct dir_context *ctx)
static int	m0t1fs_fid_readdir (struct file *f, void *buf, filldir_t filldir)
static int	m0t1fs_readdir (struct file *f, struct dir_context *ctx) static int m0t1fs_readdir(struct file *f
	if (fd->fd_direof) return M0_RC(0)
	while (rc==0)
	if (++fd->fd_mds_index< csb->csb_pools_common.pc_nr_svcs[M0_CST_MDS])
static int	m0t1fs_fid_link (struct dentry *old, struct inode *dir, struct dentry *new)
static int	m0t1fs_link (struct dentry *old, struct inode *dir, struct dentry *new)
static int	m0t1fs_fid_unlink (struct inode *dir, struct dentry *dentry)
static int	m0t1fs_unlink (struct inode *dir, struct dentry *dentry)
static int	m0t1fs_fid_rmdir (struct inode *dir, struct dentry *dentry)
static int	m0t1fs_rmdir (struct inode *dir, struct dentry *dentry)
static int	m0t1fs_inode_update_stat (struct inode *inode, struct m0_fop_cob *body, struct kstat *stat)
M0_INTERNAL int	m0t1fs_fid_getattr (const struct path *path, struct kstat *stat, uint32_t request_mask, uint32_t query_flags) M0_INTERNAL int m0t1fs_fid_getattr(struct vfsmount *mnt
M0_INTERNAL int	m0t1fs_size_update (struct dentry *dentry, uint64_t newsize)
M0_INTERNAL int	m0t1fs_fid_setxattr (const struct xattr_handler *handler, struct dentry *dentry, struct inode *inode, const char *name, const void *value, size_t size, int flags) M0_INTERNAL int m0t1fs_fid_setxattr(struct dentry *dentry
M0_INTERNAL int	m0t1fs_setattr (struct dentry *dentry, struct iattr *attr)
static int	m0t1fs_mds_cob_fop_populate (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop *fop)
static int	m0t1fs_mds_cob_op (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop_type *ftype, struct m0_fop **rep_fop)
int	m0t1fs_mds_statfs (struct m0t1fs_sb *csb, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_create (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_unlink (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_link (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_lookup (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_getattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_setattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_readdir (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_setxattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_getxattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_listxattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
int	m0t1fs_mds_cob_delxattr (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mo, struct m0_fop **rep_fop)
static int	m0t1fs_ios_cob_fop_populate (struct m0t1fs_sb *csb, const struct m0t1fs_mdop *mop, struct m0_fop *fop, const struct m0_fid *cob_fid, const struct m0_fid *gob_fid, uint32_t cob_idx)
static void	cfop_release (struct m0_ref *ref)
static int	m0t1fs_ios_cob_op (struct cob_req *cr, const struct m0t1fs_inode *ci, const struct m0t1fs_mdop *mop, int idx, struct m0_fop_type *ftype)
M0_INTERNAL int	m0t1fs_cob_getattr (struct inode *inode)
M0_INTERNAL int	m0t1fs_cob_setattr (struct inode *inode, struct m0t1fs_mdop *mo)

Variables
const struct m0_uint128	m0_rm_m0t1fs_group
static const struct m0_rpc_item_ops	cob_item_ops
int const char *	name = handler->name
int const char const void *	value
int const char const void size_t	size
int const char const void size_t int	flags
struct m0t1fs_sb *	csb = M0T1FS_SB(ci->ci_inode.i_sb)
int	layout_id
struct m0t1fs_mdop	mo
int	rc = m0t1fs_mds_cob_setxattr(csb, &mo, &rep_fop)
struct m0_fop *	rep_fop = NULL
	M0_THREAD_ENTER
	else
out	__pad0__
int const char void *	buffer
struct m0_fop_getxattr_rep *	rep = NULL
mo mo_attr	ca_tfid = *m0t1fs_inode_fid(ci)
mo mo_attr	ca_pver = ci->ci_pver
static int struct dentry *	dentry = f->f_path.dentry
static int struct dentry int	mode
static int struct dentry int struct nameidata *	nd
struct m0t1fs_inode *	ci = M0T1FS_I(inode)
struct inode *	inode = NULL
struct m0_fid	new_fid
struct m0_fid	gfid
struct m0_pool_version *	pv
bool	i_err = false
inode	i_ino = m0_fid_hash(&gfid)
ci	ci_fid = gfid
inode	i_mode = mode
inode	i_uid = current_fsuid()
else inode	i_gid = current_fsgid()
inode	i_mtime = inode->i_atime = inode->i_ctime = current_time(inode)
inode	i_blocks = 0
inode	i_fop = &m0t1fs_reg_file_operations
inode i_mapping	a_ops = &m0t1fs_aops
ci	ci_pver = pv->pv_id
ci	ci_layout_id = M0_DEFAULT_LAYOUT_ID
mo mo_attr	ca_uid = from_kuid(current_user_ns(), inode->i_uid)
mo mo_attr	ca_gid = from_kgid(current_user_ns(), inode->i_gid)
mo mo_attr	ca_atime = inode->i_atime.tv_sec
mo mo_attr	ca_ctime = inode->i_ctime.tv_sec
mo mo_attr	ca_mtime = inode->i_mtime.tv_sec
mo mo_attr	ca_mode = inode->i_mode
mo mo_attr	ca_blocks = inode->i_blocks
mo mo_attr	ca_pfid = *m0t1fs_inode_fid(M0T1FS_I(dir))
mo mo_attr	ca_lid = ci->ci_layout_id
mo mo_attr	ca_nlink = inode->i_nlink
mo mo_attr	ca_valid
out	__pad1__
void *	err_ptr = NULL
bool	dcache_splice = false
out	__pad2__
m0_fid_tassume &	fid
static int void *	buf
static int void filldir_t	filldir
struct inode *	dir = dentry->d_inode
struct m0_dirent *	ent
struct m0t1fs_filedata *	fd = f->private_data
int	type
ino_t	ino
int	i = ctx->pos
int	over
bool	dot_filled = false
bool	dotdot_filled = false
fd	fd_direof = 1
out	__pad3__
M0_INTERNAL int struct dentry struct kstat *	stat
struct m0_fop_cob *	body
const struct xattr_handler	m0t1fs_xattr_lid
const struct xattr_handler	m0t1fs_xattr_pver
const struct xattr_handler	m0t1fs_xattr_writesize
static const struct xattr_handler	m0t1fs_xattr_fid_lid
static const struct xattr_handler	m0t1fs_xattr_fid_writesize
const struct xattr_handler *	m0t1fs_xattr_handlers []
const struct file_operations	m0t1fs_dir_file_operations
const struct file_operations	m0t1fs_fid_dir_file_operations
const struct inode_operations	m0t1fs_dir_inode_operations
const struct inode_operations	m0t1fs_fid_dir_inode_operations

Macro Definition Documentation

M0_TRACE_SUBSYSTEM

#define M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_M0T1FS

Definition at line 31 of file dir.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

Cob create/delete fop send deadline (in ns). Used to utilize rpc formation when too many fops are sending to one ioservice.

Enumerator
COB_REQ_DEADLINE

Definition at line 56 of file dir.c.

Function Documentation

body_mem2wire()

static void body_mem2wire ( struct m0_fop_cob *  body, const struct m0_cob_attr *  attr, int  valid  )

static

Definition at line 158 of file dir.c.

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body_wire2mem()

static void body_wire2mem ( struct m0_cob_attr *  attr, const struct m0_fop_cob *  body  )

static

Definition at line 191 of file dir.c.

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cfop_release()

static void cfop_release ( struct m0_ref *  ref )

static

Definition at line 2242 of file dir.c.

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cob_rpc_item_cb()

static void cob_rpc_item_cb ( struct m0_rpc_item *  item )

static

Definition at line 72 of file dir.c.

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d_instantiate()

d_instantiate	(	dentry	,
		inode
	)

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dirent_first()

struct m0_dirent* dirent_first

(

struct m0_fop_readdir_rep *

rep

)

Definition at line 947 of file dir.c.

dirent_next()

struct m0_dirent* dirent_next

(

struct m0_dirent *

ent

)

Definition at line 937 of file dir.c.

file_lock_acquire()

static int file_lock_acquire ( struct m0_rm_incoming *  rm_in, struct m0t1fs_inode *  ci  )

static

Definition at line 1730 of file dir.c.

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file_lock_release()

static void file_lock_release ( struct m0_rm_incoming *  rm_in )

static

Definition at line 1749 of file dir.c.

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if() [1/16]

if

(

value

= = NULL

)

Definition at line 350 of file dir.c.

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if() [2/16]

else if

(

m0_streq(name, "writesize")

)

Definition at line 378 of file dir.c.

if() [3/16]

if

(

rc !

= 0

)

TODO: Entry type is unknown and ino is pretty random, should be fixed later.

Todo:

When we have rm locking working, this will be changed to revalidate inode with checking cached lock. If lock is cached (not canceled), which means inode did not change, then we don't have to do getattr and can just use cached data.

Definition at line 468 of file dir.c.

if() [4/16]

if

(

m0_streq(name, "lid")

)

Definition at line 485 of file dir.c.

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if() [5/16]

if

(

csb->

csb_oostore

)

Definition at line 501 of file dir.c.

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if() [6/16]

else if

(

rc

= = 0

)

Definition at line 514 of file dir.c.

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if() [7/16]

if

(

dir->i_mode &

S_ISGID

)

Definition at line 676 of file dir.c.

if() [8/16]

if

(

S_ISDIR(mode)

)

Definition at line 688 of file dir.c.

if() [9/16]

if

(

!csb->

csb_oostore

)

Definition at line 736 of file dir.c.

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if() [10/16]

if

(

S_ISREG(mode) &&csb->

csb_oostore

)

Definition at line 743 of file dir.c.

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if() [11/16]

if

(

)

Definition at line 751 of file dir.c.

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if() [12/16]

if

(

i_err

)

Definition at line 768 of file dir.c.

if() [13/16]

if	(	dentry->d_name.	len,
		csb->	csb_namelen
	)

Definition at line 824 of file dir.c.

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if() [14/16]

if

(

IS_ERR(inode)

)

Definition at line 891 of file dir.c.

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if() [15/16]

if

(

fd->

fd_direof

)

if() [16/16]

if

(

++fd->fd_mds_index< csb->csb_pools_common.

pc_nr_svcs[M0_CST_MDS]

)

Definition at line 1165 of file dir.c.

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M0_ADDB2_ADD()

M0_ADDB2_ADD	(	M0_AVI_FS_CREATE	,
		new_fid.	f_container,
		new_fid.	f_key,
		mode	,
		rc
	)

m0_addb2_add()

m0_addb2_add	(	M0_AVI_FS_LOOKUP	,
		M0_ADDB2_OBJ(&dir ->	ci_fid
	)

M0_ENTRY() [1/2]

M0_ENTRY

(

)

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M0_ENTRY() [2/2]

M0_ENTRY	(	"Getting %.*s's xattr %s"	,
		dentry->d_name.	len,
		(char *) dentry->d_name.	name,
		name
	)

M0_ERR()

return M0_ERR

(

-

EOPNOTSUPP

)

m0_fop_put0_lock()

m0_fop_put0_lock

(

rep_fop

)

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M0_LEAVE()

M0_LEAVE

(

)

M0_LOG() [1/4]

M0_LOG	(	M0_DEBUG	,
		"Creating \n pdir %lu "	FID_F,
		(char *) dentry->d_name.	name,
		dir->	i_ino,
		FID_P(m0t1fs_inode_fid(M0T1FS_I(dir)))
	)

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M0_LOG() [2/4]

M0_LOG

(

M0_DEBUG

)

M0_LOG() [3/4]

M0_LOG	(	M0_INFO	,
		"Creating \ith pool version "	FID_F,
		(char *) dentry->d_name.	name,
		FID_P &->	ci_pver
	)

M0_LOG() [4/4]

M0_LOG	(	M0_INFO	,
		"Name: \	,
		(char *) dentry->d_name.	name
	)

M0_RC()

return M0_RC

(

rc

)

m0t1fs_cob_getattr()

M0_INTERNAL int m0t1fs_cob_getattr

(

struct inode *

inode

)

Definition at line 2386 of file dir.c.

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m0t1fs_cob_setattr()

M0_INTERNAL int m0t1fs_cob_setattr	(	struct inode *	inode,
		struct m0t1fs_mdop *	mo
	)

Definition at line 2477 of file dir.c.

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m0t1fs_component_objects_op()

static int m0t1fs_component_objects_op ( struct m0t1fs_inode *  ci, struct m0t1fs_mdop *  mop, int(*)(struct cob_req *, const struct m0t1fs_inode *, const struct m0t1fs_mdop *, int idx)  func  )

static

Definition at line 1755 of file dir.c.

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m0t1fs_create() [1/2]

static int m0t1fs_create ( struct inode *  dir, struct dentry *  dentry, umode_t  mode, bool  excl  )

static

m0t1fs_create() [2/2]

return m0t1fs_create	(	dir	,
		dentry	,
		mode|	S_IFDIR,
		NULL
	)

m0t1fs_fid_accept()

void m0t1fs_fid_accept	(	struct m0t1fs_sb *	csb,
		const struct m0_fid *	fid
	)

Given a fid of an existing file, update "fid allocator" so that this fid is not given out to another file.

Definition at line 265 of file dir.c.

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m0t1fs_fid_alloc()

void m0t1fs_fid_alloc	(	struct m0t1fs_sb *	csb,
		struct m0_fid *	out
	)

Allocate fid of global file.

See "Containers and component objects" section in m0t1fs.h for more information.

XXX temporary.

Definition at line 252 of file dir.c.

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m0t1fs_fid_check()

static int m0t1fs_fid_check ( struct m0_fid *  fid )

static

Definition at line 597 of file dir.c.

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m0t1fs_fid_create() [1/2]

static int m0t1fs_fid_create ( struct inode *  dir, struct dentry *  dentry, umode_t  mode, bool  excl  )

static

m0t1fs_fid_create() [2/2]

return m0t1fs_fid_create	(	dir	,
		dentry	,
		mode|	S_IFDIR,
		NULL
	)

m0t1fs_fid_getattr()

M0_INTERNAL int m0t1fs_fid_getattr	(	const struct path *	path,
		struct kstat *	stat,
		uint32_t	request_mask,
		uint32_t	query_flags
	)

m0t1fs_fid_getxattr()

int m0t1fs_fid_getxattr	(	const struct xattr_handler *	handler,
		struct dentry *	dentry,
		struct inode *	inode,
		const char *	name,
		void *	buffer,
		size_t	size
	)

m0t1fs_fid_link()

static int m0t1fs_fid_link ( struct dentry *  old, struct inode *  dir, struct dentry *  new  )

static

Definition at line 1183 of file dir.c.

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m0t1fs_fid_lookup()

return dcache_splice static d_splice_alias (inode, dentry) struct dentry* m0t1fs_fid_lookup ( struct inode *  dir, struct dentry *  dentry, unsigned int  flags  )

static

m0t1fs_fid_mkdir()

static int m0t1fs_fid_mkdir ( struct inode *  dir, struct dentry *  dentry, umode_t  mode  )

static

m0t1fs_fid_opendir()

static int m0t1fs_fid_opendir ( struct inode *  inode, struct file *  file  )

static

Definition at line 976 of file dir.c.

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m0t1fs_fid_readdir() [1/2]

static int m0t1fs_fid_readdir ( struct file *  f, struct dir_context *  ctx  )

static

Definition at line 1000 of file dir.c.

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m0t1fs_fid_readdir() [2/2]

static int m0t1fs_fid_readdir ( struct file *  f, void *  buf, filldir_t  filldir  )

static

Definition at line 1006 of file dir.c.

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m0t1fs_fid_releasedir()

static int m0t1fs_fid_releasedir ( struct inode *  inode, struct file *  file  )

static

Definition at line 993 of file dir.c.

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m0t1fs_fid_removexattr()

int m0t1fs_fid_removexattr	(	struct dentry *	dentry,
		const char *	name
	)

Definition at line 544 of file dir.c.

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m0t1fs_fid_rmdir()

static int m0t1fs_fid_rmdir ( struct inode *  dir, struct dentry *  dentry  )

static

Definition at line 1368 of file dir.c.

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m0t1fs_fid_setxattr()

M0_INTERNAL int m0t1fs_fid_setxattr	(	const struct xattr_handler *	handler,
		struct dentry *	dentry,
		struct inode *	inode,
		const char *	name,
		const void *	value,
		size_t	size,
		int	flags
	)

m0t1fs_fid_unlink()

static int m0t1fs_fid_unlink ( struct inode *  dir, struct dentry *  dentry  )

static

Definition at line 1247 of file dir.c.

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m0t1fs_file_lock_init()

m0t1fs_file_lock_init	(	ci	,
		csb
	)

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m0t1fs_fs_conf_lock()

M0_INTERNAL int m0t1fs_fs_conf_lock

(

struct m0t1fs_sb *

csb

)

Definition at line 227 of file dir.c.

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m0t1fs_fs_conf_unlock() [1/2]

M0_INTERNAL void m0t1fs_fs_conf_unlock

(

struct m0t1fs_sb *

csb

)

Definition at line 239 of file dir.c.

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m0t1fs_fs_conf_unlock() [2/2]

m0t1fs_fs_conf_unlock

(

csb

)

m0t1fs_getxattr()

int m0t1fs_getxattr	(	const struct xattr_handler *	handler,
		struct dentry *	dentry,
		struct inode *	inode,
		const char *	name,
		void *	buffer,
		size_t	size
	)

m0t1fs_inode_bob_check()

M0_INTERNAL bool m0t1fs_inode_bob_check

(

struct m0t1fs_inode *

bob

)

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m0t1fs_inode_bob_init()

M0_INTERNAL void m0t1fs_inode_bob_init

(

struct m0t1fs_inode *

bob

)

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m0t1fs_inode_set_layout_id()

int m0t1fs_inode_set_layout_id	(	struct m0t1fs_inode *	ci,
		struct m0t1fs_mdop *	mo,
		int	layout_id
	)

Definition at line 272 of file dir.c.

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m0t1fs_inode_update_stat()

static int m0t1fs_inode_update_stat ( struct inode *  inode, struct m0_fop_cob *  body, struct kstat *  stat  )

static

Now its time to return inode stat data to user.

Definition at line 1388 of file dir.c.

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m0t1fs_ios_cob_create()

static int m0t1fs_ios_cob_create ( struct cob_req *  cr, const struct m0t1fs_inode *  inode, const struct m0t1fs_mdop *  mop, int  idx  )

static

Definition at line 2353 of file dir.c.

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m0t1fs_ios_cob_delete()

static int m0t1fs_ios_cob_delete ( struct cob_req *  cr, const struct m0t1fs_inode *  inode, const struct m0t1fs_mdop *  mop, int  idx  )

static

Definition at line 2361 of file dir.c.

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m0t1fs_ios_cob_fop_populate()

static int m0t1fs_ios_cob_fop_populate ( struct m0t1fs_sb *  csb, const struct m0t1fs_mdop *  mop, struct m0_fop *  fop, const struct m0_fid *  cob_fid, const struct m0_fid *  gob_fid, uint32_t  cob_idx  )

static

Definition at line 2203 of file dir.c.

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m0t1fs_ios_cob_op()

static int m0t1fs_ios_cob_op ( struct cob_req *  cr, const struct m0t1fs_inode *  ci, const struct m0t1fs_mdop *  mop, int  idx, struct m0_fop_type *  ftype  )

static

Definition at line 2264 of file dir.c.

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m0t1fs_ios_cob_setattr()

static int m0t1fs_ios_cob_setattr ( struct cob_req *  cr, const struct m0t1fs_inode *  inode, const struct m0t1fs_mdop *  mop, int  idx  )

static

Definition at line 2378 of file dir.c.

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m0t1fs_ios_cob_truncate()

static int m0t1fs_ios_cob_truncate ( struct cob_req *  cr, const struct m0t1fs_inode *  inode, const struct m0t1fs_mdop *  mop, int  idx  )

static

Definition at line 2369 of file dir.c.

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m0t1fs_link()

static int m0t1fs_link ( struct dentry *  old, struct inode *  dir, struct dentry *  new  )

static

Definition at line 1190 of file dir.c.

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m0t1fs_listxattr()

ssize_t m0t1fs_listxattr	(	struct dentry *	dentry,
		char *	buffer,
		size_t	size
	)

Definition at line 538 of file dir.c.

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m0t1fs_lookup() [1/3]

static struct dentry* m0t1fs_lookup ( struct inode *  dir, struct dentry *  dentry, unsigned int  flags  )

static

m0t1fs_lookup() [2/3]

return m0t1fs_lookup	(	dir	,
		dentry	,
		flags
	)

m0t1fs_lookup() [3/3]

return m0t1fs_lookup	(	dir	,
		dentry	,
		nd
	)

m0t1fs_mds_cob_create()

int m0t1fs_mds_cob_create	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2126 of file dir.c.

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m0t1fs_mds_cob_delxattr()

int m0t1fs_mds_cob_delxattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2196 of file dir.c.

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m0t1fs_mds_cob_fop_populate()

static int m0t1fs_mds_cob_fop_populate ( struct m0t1fs_sb *  csb, const struct m0t1fs_mdop *  mo, struct m0_fop *  fop  )

static

Definition at line 1833 of file dir.c.

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m0t1fs_mds_cob_getattr()

int m0t1fs_mds_cob_getattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2154 of file dir.c.

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m0t1fs_mds_cob_getxattr()

int m0t1fs_mds_cob_getxattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2182 of file dir.c.

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m0t1fs_mds_cob_link()

int m0t1fs_mds_cob_link	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2140 of file dir.c.

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m0t1fs_mds_cob_listxattr()

int m0t1fs_mds_cob_listxattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2189 of file dir.c.

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m0t1fs_mds_cob_lookup()

int m0t1fs_mds_cob_lookup	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2147 of file dir.c.

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m0t1fs_mds_cob_op()

static int m0t1fs_mds_cob_op ( struct m0t1fs_sb *  csb, const struct m0t1fs_mdop *  mo, struct m0_fop_type *  ftype, struct m0_fop **  rep_fop  )

static

Todo:

remid can be found generically, outside of this switch through the use of 'm0_xcode_find()' - this function should be cleaned up later.

Definition at line 1949 of file dir.c.

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m0t1fs_mds_cob_readdir()

int m0t1fs_mds_cob_readdir	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2168 of file dir.c.

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m0t1fs_mds_cob_setattr()

int m0t1fs_mds_cob_setattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2161 of file dir.c.

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m0t1fs_mds_cob_setxattr()

int m0t1fs_mds_cob_setxattr	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2175 of file dir.c.

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m0t1fs_mds_cob_unlink()

int m0t1fs_mds_cob_unlink	(	struct m0t1fs_sb *	csb,
		const struct m0t1fs_mdop *	mo,
		struct m0_fop **	rep_fop
	)

Definition at line 2133 of file dir.c.

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m0t1fs_mds_statfs()

int m0t1fs_mds_statfs	(	struct m0t1fs_sb *	csb,
		struct m0_fop **	rep_fop
	)

Definition at line 2119 of file dir.c.

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m0t1fs_mkdir()

static int m0t1fs_mkdir ( struct inode *  dir, struct dentry *  dentry, umode_t  mode  )

static

m0t1fs_opendir()

static int m0t1fs_opendir ( struct inode *  inode, struct file *  file  )

static

Setup readdir initial pos with "." and max possible namelen.

Definition at line 953 of file dir.c.

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m0t1fs_readdir()

static int m0t1fs_readdir ( struct file *  f, struct dir_context *  ctx  )

static

m0t1fs_releasedir()

static int m0t1fs_releasedir ( struct inode *  inode, struct file *  file  )

static

Definition at line 982 of file dir.c.

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m0t1fs_removexattr()

int m0t1fs_removexattr	(	struct dentry *	dentry,
		const char *	name
	)

Definition at line 550 of file dir.c.

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m0t1fs_rmdir()

static int m0t1fs_rmdir ( struct inode *  dir, struct dentry *  dentry  )

static

Definition at line 1374 of file dir.c.

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m0t1fs_setattr()

M0_INTERNAL int m0t1fs_setattr	(	struct dentry *	dentry,
		struct iattr *	attr
	)

Definition at line 1586 of file dir.c.

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m0t1fs_setxattr()

int m0t1fs_setxattr	(	const struct xattr_handler *	handler,
		struct dentry *	dentry,
		struct inode *	inode,
		const char *	name,
		const void *	value,
		size_t	size,
		int	flags
	)

m0t1fs_size_update()

M0_INTERNAL int m0t1fs_size_update	(	struct dentry *	dentry,
		uint64_t	newsize
	)

Definition at line 1525 of file dir.c.

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m0t1fs_unlink()

static int m0t1fs_unlink ( struct inode *  dir, struct dentry *  dentry  )

static

Update ctime and mtime on parent dir.

Definition at line 1253 of file dir.c.

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mark_inode_dirty()

mark_inode_dirty

(

dir

)

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mo() [1/2]

m0_buf_init& mo

(

void *

)

mo() [2/2]

m0_buf_init& mo

(

char *

)

-> d_name.name, dentry->d_name.len

name_mem2wire()

static int name_mem2wire ( struct m0_fop_str *  tgt, const struct m0_buf *  name  )

static

Definition at line 147 of file dir.c.

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unlock_new_inode()

unlock_new_inode

(

inode

)

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while()

while

(

rc

= =0

)

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Variable Documentation

__pad0__

out __pad0__

Definition at line 424 of file dir.c.

__pad1__

out __pad1__

Definition at line 766 of file dir.c.

__pad2__

out __pad2__

Definition at line 898 of file dir.c.

__pad3__

out __pad3__

Definition at line 1178 of file dir.c.

a_ops

inode i_mapping a_ops = &m0t1fs_aops

Definition at line 695 of file dir.c.

body

struct m0_fop_cob* body

Definition at line 1436 of file dir.c.

buf

int void* buf

Definition at line 1019 of file dir.c.

buffer

int const char void * buffer

Definition at line 435 of file dir.c.

ca_atime

mo mo_attr ca_atime = inode->i_atime.tv_sec

Definition at line 719 of file dir.c.

ca_blocks

mo mo_attr ca_blocks = inode->i_blocks

Definition at line 723 of file dir.c.

ca_ctime

mo mo_attr ca_ctime = inode->i_ctime.tv_sec

Definition at line 720 of file dir.c.

ca_gid

mo mo_attr ca_gid = from_kgid(current_user_ns(), inode->i_gid)

Definition at line 714 of file dir.c.

ca_lid

mo mo_attr ca_lid = ci->ci_layout_id

Definition at line 727 of file dir.c.

ca_mode

mo mo_attr ca_mode = inode->i_mode

Definition at line 722 of file dir.c.

ca_mtime

mo mo_attr ca_mtime = inode->i_mtime.tv_sec

Definition at line 721 of file dir.c.

ca_nlink

mo mo_attr ca_nlink = inode->i_nlink

Definition at line 728 of file dir.c.

ca_pfid

mo mo_attr ca_pfid = *m0t1fs_inode_fid(M0T1FS_I(dir))

Definition at line 724 of file dir.c.

ca_pver

mo mo_attr ca_pver = ci->ci_pver

Definition at line 511 of file dir.c.

ca_tfid

mo mo_attr ca_tfid = *m0t1fs_inode_fid(ci)

Definition at line 507 of file dir.c.

ca_uid

mo mo_attr ca_uid = from_kuid(current_user_ns(), inode->i_uid)

Definition at line 713 of file dir.c.

ca_valid

mo mo_attr ca_valid

Initial value:

= (M0_COB_UID    | M0_COB_GID   | M0_COB_ATIME |
                                   M0_COB_CTIME  | M0_COB_MTIME | M0_COB_MODE  |
                                   M0_COB_BLOCKS | M0_COB_SIZE  | M0_COB_LID   |
                                   M0_COB_NLINK  | M0_COB_PVER)

Definition at line 729 of file dir.c.

ci

ci = M0T1FS_I(inode)

Definition at line 622 of file dir.c.

ci_fid

ci ci_fid = gfid

Definition at line 672 of file dir.c.

ci_layout_id

ci ci_layout_id = M0_DEFAULT_LAYOUT_ID

Definition at line 702 of file dir.c.

ci_pver

ci ci_pver = pv->pv_id

Definition at line 698 of file dir.c.

cob_item_ops

const struct m0_rpc_item_ops cob_item_ops

static

Initial value:

= {
        .rio_replied = cob_rpc_item_cb,
}

Definition at line 110 of file dir.c.

csb

struct m0t1fs_sb * csb = M0T1FS_SB(ci->ci_inode.i_sb)

Definition at line 330 of file dir.c.

dcache_splice

dcache_splice = false

Definition at line 815 of file dir.c.

dentry

struct dentry * dentry = f->f_path.dentry

Definition at line 589 of file dir.c.

dir

dir = dentry->d_inode

Definition at line 1028 of file dir.c.

dot_filled

bool dot_filled = false

Definition at line 1036 of file dir.c.

dotdot_filled

bool dotdot_filled = false

Definition at line 1037 of file dir.c.

else

else

Initial value:

{
                if (csb->csb_oostore) {
                        rc = -EOPNOTSUPP;
                        goto out;
                }
                m0_buf_init(&mo.mo_attr.ca_eakey, (void*)name, strlen(name))

Definition at line 413 of file dir.c.

ent

struct m0_dirent* ent

Definition at line 1029 of file dir.c.

err_ptr

void* err_ptr = NULL

Definition at line 813 of file dir.c.

fd

fd = f->private_data

Definition at line 1030 of file dir.c.

fd_direof

fd fd_direof = 1

Definition at line 1174 of file dir.c.

fid

m0_fid_tassume& fid

Definition at line 928 of file dir.c.

filldir

int void filldir_t filldir

Initial value:

{
        struct m0t1fs_inode       *ci

Definition at line 1022 of file dir.c.

flags

M0_INTERNAL int const char const void size_t int flags

Initial value:

{
        struct m0t1fs_inode *ci = M0T1FS_I(dentry->d_inode)

Definition at line 328 of file dir.c.

gfid

m0_fid_gob_make & gfid

Definition at line 626 of file dir.c.

i

i = ctx->pos

Definition at line 1033 of file dir.c.

i_blocks

inode i_blocks = 0

Definition at line 687 of file dir.c.

i_err

bool i_err = false

Definition at line 630 of file dir.c.

i_fop

inode i_fop = &m0t1fs_reg_file_operations

Definition at line 694 of file dir.c.

i_gid

else inode i_gid = current_fsgid()

Definition at line 681 of file dir.c.

i_ino

inode i_ino = m0_fid_hash(&gfid)

Definition at line 670 of file dir.c.

i_mode

inode i_mode = mode

Definition at line 674 of file dir.c.

i_mtime

inode i_mtime = inode->i_atime = inode->i_ctime = current_time(inode)

Definition at line 683 of file dir.c.

i_uid

inode i_uid = current_fsuid()

Definition at line 675 of file dir.c.

ino

ino_t ino

Definition at line 1032 of file dir.c.

inode

struct inode * inode = NULL

Definition at line 624 of file dir.c.

layout_id

int layout_id

Definition at line 331 of file dir.c.

m0_rm_m0t1fs_group

const struct m0_uint128 m0_rm_m0t1fs_group

Definition at line 59 of file inode.c.

M0_THREAD_ENTER

M0_THREAD_ENTER

Definition at line 336 of file dir.c.

m0t1fs_dir_file_operations

const struct file_operations m0t1fs_dir_file_operations

Initial value:

= {
        .read    = generic_read_dir,    
        .open    = m0t1fs_opendir,
        .release = m0t1fs_releasedir,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)
        .iterate = m0t1fs_readdir,
#else
        .readdir = m0t1fs_readdir,
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
        .fsync          = generic_file_fsync,  
#else
        .fsync          = simple_fsync, 
#endif
        .llseek         = generic_file_llseek, 
}

Definition at line 2539 of file dir.c.

m0t1fs_dir_inode_operations

const struct inode_operations m0t1fs_dir_inode_operations

Initial value:

= {
        .create         = m0t1fs_create,
        .lookup         = m0t1fs_lookup,
        .unlink         = m0t1fs_unlink,
        .link           = m0t1fs_link,
        .mkdir          = m0t1fs_mkdir,
        .rmdir          = m0t1fs_rmdir,
        .setattr        = m0t1fs_setattr,
        .getattr        = m0t1fs_getattr,

#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0)
        .setxattr       = m0t1fs_setxattr,
        .getxattr       = m0t1fs_getxattr,
        .removexattr    = m0t1fs_removexattr,
#endif
        .listxattr      = m0t1fs_listxattr,
}

Definition at line 2574 of file dir.c.

m0t1fs_fid_dir_file_operations

const struct file_operations m0t1fs_fid_dir_file_operations

Initial value:

= {
        .read    = generic_read_dir,    
        .open    = m0t1fs_fid_opendir,
        .release = m0t1fs_fid_releasedir,
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0)
        .iterate = m0t1fs_fid_readdir,
#else
        .readdir = m0t1fs_fid_readdir,
#endif
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
        .fsync   = generic_file_fsync,  
#else
        .fsync   = simple_fsync,        
#endif
        .llseek  = generic_file_llseek, 
}

Definition at line 2557 of file dir.c.

m0t1fs_fid_dir_inode_operations

const struct inode_operations m0t1fs_fid_dir_inode_operations

Initial value:

= {
        .create         = m0t1fs_fid_create,
        .lookup         = m0t1fs_fid_lookup,
        .unlink         = m0t1fs_fid_unlink,
        .link           = m0t1fs_fid_link,
        .mkdir          = m0t1fs_fid_mkdir,
        .rmdir          = m0t1fs_fid_rmdir,
        .setattr        = m0t1fs_fid_setattr,
        .getattr        = m0t1fs_fid_getattr,
#if LINUX_VERSION_CODE < KERNEL_VERSION(4,9,0)
        .setxattr       = m0t1fs_fid_setxattr,
        .getxattr       = m0t1fs_fid_getxattr,
        .removexattr    = m0t1fs_fid_removexattr,
#endif
        .listxattr      = m0t1fs_fid_listxattr,
}

Definition at line 2592 of file dir.c.

m0t1fs_xattr_fid_lid

const struct xattr_handler m0t1fs_xattr_fid_lid

static

Initial value:

= {
        .name   = "fid_lid",
        .flags  = 0,
        .get    = m0t1fs_fid_getxattr,
        .set    = m0t1fs_fid_setxattr,
}

Definition at line 2515 of file dir.c.

m0t1fs_xattr_fid_writesize

const struct xattr_handler m0t1fs_xattr_fid_writesize

static

Initial value:

= {
        .name   = "fid_writesize",
        .flags  = 0,
        .get    = m0t1fs_fid_getxattr,
        .set    = m0t1fs_fid_setxattr,
}

Definition at line 2522 of file dir.c.

m0t1fs_xattr_handlers

const struct xattr_handler* m0t1fs_xattr_handlers[]

Initial value:

= {
        &m0t1fs_xattr_lid,
        &m0t1fs_xattr_writesize,
        &m0t1fs_xattr_fid_lid,
        &m0t1fs_xattr_fid_writesize,
        &m0t1fs_xattr_pver,
        NULL
}

Definition at line 2529 of file dir.c.

m0t1fs_xattr_lid

const struct xattr_handler m0t1fs_xattr_lid

Initial value:

= {
        .name   = "lid",
        .flags  = 0,
        .get    = m0t1fs_getxattr,
        .set    = m0t1fs_setxattr,
}

Definition at line 2496 of file dir.c.

m0t1fs_xattr_pver

const struct xattr_handler m0t1fs_xattr_pver

Initial value:

= {
        .name   = "pver",
        .flags  = 0,
        .get    = m0t1fs_getxattr,
}

Definition at line 2503 of file dir.c.

m0t1fs_xattr_writesize

const struct xattr_handler m0t1fs_xattr_writesize

Initial value:

= {
        .name   = "writesize",
        .flags  = 0,
        .get    = m0t1fs_getxattr,
        .set    = m0t1fs_setxattr,
}

Definition at line 2509 of file dir.c.

mo

struct m0t1fs_mdop mo

Definition at line 332 of file dir.c.

mode

static int struct dentry int mode

Initial value:

{
        M0_THREAD_ENTER

Definition at line 589 of file dir.c.

name

M0_INTERNAL int const char* name = handler->name

Definition at line 325 of file dir.c.

nd

static struct dentry struct dentry struct nameidata * nd

Initial value:

{
        return M0_ERR(-EOPNOTSUPP)

Definition at line 593 of file dir.c.

new_fid

struct m0_fid new_fid

Definition at line 625 of file dir.c.

over

int over

Definition at line 1035 of file dir.c.

pv

struct m0_pool_version* pv

Definition at line 629 of file dir.c.

rc

rc = m0t1fs_mds_cob_setxattr(csb, &mo, &rep_fop)

Definition at line 333 of file dir.c.

rep

struct m0_fop_readdir_rep * rep = NULL

Definition at line 455 of file dir.c.

rep_fop

struct m0_fop * rep_fop = NULL

Definition at line 334 of file dir.c.

size

M0_INTERNAL int const char const void size_t size

Initial value:

{
        M0_THREAD_ENTER

Definition at line 325 of file dir.c.

stat

M0_INTERNAL int struct dentry struct kstat* stat

Initial value:

{
        struct m0t1fs_sb    *csb

Definition at line 1433 of file dir.c.

type

int type

Definition at line 1031 of file dir.c.

value

M0_INTERNAL int const char const void * value

Definition at line 325 of file dir.c.