Moved, renamed, and deleted files

The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.

1 files changed, 0 insertions, 946 deletions

diff --git a/ANDROID_3.4.5/fs/ceph/xattr.c b/ANDROID_3.4.5/fs/ceph/xattr.c
deleted file mode 100644
index 35b86331..00000000
--- a/ANDROID_3.4.5/fs/ceph/xattr.c
+++ /dev/null
@@ -1,946 +0,0 @@
-#include <linux/ceph/ceph_debug.h>
-
-#include "super.h"
-#include "mds_client.h"
-
-#include <linux/ceph/decode.h>
-
-#include <linux/xattr.h>
-#include <linux/slab.h>
-
-#define XATTR_CEPH_PREFIX "ceph."
-#define XATTR_CEPH_PREFIX_LEN (sizeof (XATTR_CEPH_PREFIX) - 1)
-
-static bool ceph_is_valid_xattr(const char *name)
-{
-	return !strncmp(name, XATTR_CEPH_PREFIX, XATTR_CEPH_PREFIX_LEN) ||
-	       !strncmp(name, XATTR_SECURITY_PREFIX,
-			XATTR_SECURITY_PREFIX_LEN) ||
-	       !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) ||
-	       !strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
-}
-
-/*
- * These define virtual xattrs exposing the recursive directory
- * statistics and layout metadata.
- */
-struct ceph_vxattr {
-	char *name;
-	size_t name_size;	/* strlen(name) + 1 (for '\0') */
-	size_t (*getxattr_cb)(struct ceph_inode_info *ci, char *val,
-			      size_t size);
-	bool readonly;
-};
-
-/* directories */
-
-static size_t ceph_vxattrcb_dir_entries(struct ceph_inode_info *ci, char *val,
-					size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_files + ci->i_subdirs);
-}
-
-static size_t ceph_vxattrcb_dir_files(struct ceph_inode_info *ci, char *val,
-				      size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_files);
-}
-
-static size_t ceph_vxattrcb_dir_subdirs(struct ceph_inode_info *ci, char *val,
-					size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_subdirs);
-}
-
-static size_t ceph_vxattrcb_dir_rentries(struct ceph_inode_info *ci, char *val,
-					 size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_rfiles + ci->i_rsubdirs);
-}
-
-static size_t ceph_vxattrcb_dir_rfiles(struct ceph_inode_info *ci, char *val,
-				       size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_rfiles);
-}
-
-static size_t ceph_vxattrcb_dir_rsubdirs(struct ceph_inode_info *ci, char *val,
-					 size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_rsubdirs);
-}
-
-static size_t ceph_vxattrcb_dir_rbytes(struct ceph_inode_info *ci, char *val,
-				       size_t size)
-{
-	return snprintf(val, size, "%lld", ci->i_rbytes);
-}
-
-static size_t ceph_vxattrcb_dir_rctime(struct ceph_inode_info *ci, char *val,
-				       size_t size)
-{
-	return snprintf(val, size, "%ld.09%ld", (long)ci->i_rctime.tv_sec,
-			(long)ci->i_rctime.tv_nsec);
-}
-
-#define CEPH_XATTR_NAME(_type, _name)	XATTR_CEPH_PREFIX #_type "." #_name
-
-#define XATTR_NAME_CEPH(_type, _name) \
-		{ \
-			.name = CEPH_XATTR_NAME(_type, _name), \
-			.name_size = sizeof (CEPH_XATTR_NAME(_type, _name)), \
-			.getxattr_cb = ceph_vxattrcb_ ## _type ## _ ## _name, \
-			.readonly = true, \
-		}
-
-static struct ceph_vxattr ceph_dir_vxattrs[] = {
-	XATTR_NAME_CEPH(dir, entries),
-	XATTR_NAME_CEPH(dir, files),
-	XATTR_NAME_CEPH(dir, subdirs),
-	XATTR_NAME_CEPH(dir, rentries),
-	XATTR_NAME_CEPH(dir, rfiles),
-	XATTR_NAME_CEPH(dir, rsubdirs),
-	XATTR_NAME_CEPH(dir, rbytes),
-	XATTR_NAME_CEPH(dir, rctime),
-	{ 0 }	/* Required table terminator */
-};
-static size_t ceph_dir_vxattrs_name_size;	/* total size of all names */
-
-/* files */
-
-static size_t ceph_vxattrcb_file_layout(struct ceph_inode_info *ci, char *val,
-				   size_t size)
-{
-	int ret;
-
-	ret = snprintf(val, size,
-		"chunk_bytes=%lld\nstripe_count=%lld\nobject_size=%lld\n",
-		(unsigned long long)ceph_file_layout_su(ci->i_layout),
-		(unsigned long long)ceph_file_layout_stripe_count(ci->i_layout),
-		(unsigned long long)ceph_file_layout_object_size(ci->i_layout));
-
-	if (ceph_file_layout_pg_preferred(ci->i_layout) >= 0) {
-		val += ret;
-		size -= ret;
-		ret += snprintf(val, size, "preferred_osd=%lld\n",
-			    (unsigned long long)ceph_file_layout_pg_preferred(
-				    ci->i_layout));
-	}
-
-	return ret;
-}
-
-static struct ceph_vxattr ceph_file_vxattrs[] = {
-	XATTR_NAME_CEPH(file, layout),
-	/* The following extended attribute name is deprecated */
-	{
-		.name = XATTR_CEPH_PREFIX "layout",
-		.name_size = sizeof (XATTR_CEPH_PREFIX "layout"),
-		.getxattr_cb = ceph_vxattrcb_file_layout,
-		.readonly = true,
-	},
-	{ 0 }	/* Required table terminator */
-};
-static size_t ceph_file_vxattrs_name_size;	/* total size of all names */
-
-static struct ceph_vxattr *ceph_inode_vxattrs(struct inode *inode)
-{
-	if (S_ISDIR(inode->i_mode))
-		return ceph_dir_vxattrs;
-	else if (S_ISREG(inode->i_mode))
-		return ceph_file_vxattrs;
-	return NULL;
-}
-
-static size_t ceph_vxattrs_name_size(struct ceph_vxattr *vxattrs)
-{
-	if (vxattrs == ceph_dir_vxattrs)
-		return ceph_dir_vxattrs_name_size;
-	if (vxattrs == ceph_file_vxattrs)
-		return ceph_file_vxattrs_name_size;
-	BUG();
-
-	return 0;
-}
-
-/*
- * Compute the aggregate size (including terminating '\0') of all
- * virtual extended attribute names in the given vxattr table.
- */
-static size_t __init vxattrs_name_size(struct ceph_vxattr *vxattrs)
-{
-	struct ceph_vxattr *vxattr;
-	size_t size = 0;
-
-	for (vxattr = vxattrs; vxattr->name; vxattr++)
-		size += vxattr->name_size;
-
-	return size;
-}
-
-/* Routines called at initialization and exit time */
-
-void __init ceph_xattr_init(void)
-{
-	ceph_dir_vxattrs_name_size = vxattrs_name_size(ceph_dir_vxattrs);
-	ceph_file_vxattrs_name_size = vxattrs_name_size(ceph_file_vxattrs);
-}
-
-void ceph_xattr_exit(void)
-{
-	ceph_dir_vxattrs_name_size = 0;
-	ceph_file_vxattrs_name_size = 0;
-}
-
-static struct ceph_vxattr *ceph_match_vxattr(struct inode *inode,
-						const char *name)
-{
-	struct ceph_vxattr *vxattr = ceph_inode_vxattrs(inode);
-
-	if (vxattr) {
-		while (vxattr->name) {
-			if (!strcmp(vxattr->name, name))
-				return vxattr;
-			vxattr++;
-		}
-	}
-
-	return NULL;
-}
-
-static int __set_xattr(struct ceph_inode_info *ci,
-			   const char *name, int name_len,
-			   const char *val, int val_len,
-			   int dirty,
-			   int should_free_name, int should_free_val,
-			   struct ceph_inode_xattr **newxattr)
-{
-	struct rb_node **p;
-	struct rb_node *parent = NULL;
-	struct ceph_inode_xattr *xattr = NULL;
-	int c;
-	int new = 0;
-
-	p = &ci->i_xattrs.index.rb_node;
-	while (*p) {
-		parent = *p;
-		xattr = rb_entry(parent, struct ceph_inode_xattr, node);
-		c = strncmp(name, xattr->name, min(name_len, xattr->name_len));
-		if (c < 0)
-			p = &(*p)->rb_left;
-		else if (c > 0)
-			p = &(*p)->rb_right;
-		else {
-			if (name_len == xattr->name_len)
-				break;
-			else if (name_len < xattr->name_len)
-				p = &(*p)->rb_left;
-			else
-				p = &(*p)->rb_right;
-		}
-		xattr = NULL;
-	}
-
-	if (!xattr) {
-		new = 1;
-		xattr = *newxattr;
-		xattr->name = name;
-		xattr->name_len = name_len;
-		xattr->should_free_name = should_free_name;
-
-		ci->i_xattrs.count++;
-		dout("__set_xattr count=%d\n", ci->i_xattrs.count);
-	} else {
-		kfree(*newxattr);
-		*newxattr = NULL;
-		if (xattr->should_free_val)
-			kfree((void *)xattr->val);
-
-		if (should_free_name) {
-			kfree((void *)name);
-			name = xattr->name;
-		}
-		ci->i_xattrs.names_size -= xattr->name_len;
-		ci->i_xattrs.vals_size -= xattr->val_len;
-	}
-	ci->i_xattrs.names_size += name_len;
-	ci->i_xattrs.vals_size += val_len;
-	if (val)
-		xattr->val = val;
-	else
-		xattr->val = "";
-
-	xattr->val_len = val_len;
-	xattr->dirty = dirty;
-	xattr->should_free_val = (val && should_free_val);
-
-	if (new) {
-		rb_link_node(&xattr->node, parent, p);
-		rb_insert_color(&xattr->node, &ci->i_xattrs.index);
-		dout("__set_xattr_val p=%p\n", p);
-	}
-
-	dout("__set_xattr_val added %llx.%llx xattr %p %s=%.*s\n",
-	     ceph_vinop(&ci->vfs_inode), xattr, name, val_len, val);
-
-	return 0;
-}
-
-static struct ceph_inode_xattr *__get_xattr(struct ceph_inode_info *ci,
-			   const char *name)
-{
-	struct rb_node **p;
-	struct rb_node *parent = NULL;
-	struct ceph_inode_xattr *xattr = NULL;
-	int name_len = strlen(name);
-	int c;
-
-	p = &ci->i_xattrs.index.rb_node;
-	while (*p) {
-		parent = *p;
-		xattr = rb_entry(parent, struct ceph_inode_xattr, node);
-		c = strncmp(name, xattr->name, xattr->name_len);
-		if (c == 0 && name_len > xattr->name_len)
-			c = 1;
-		if (c < 0)
-			p = &(*p)->rb_left;
-		else if (c > 0)
-			p = &(*p)->rb_right;
-		else {
-			dout("__get_xattr %s: found %.*s\n", name,
-			     xattr->val_len, xattr->val);
-			return xattr;
-		}
-	}
-
-	dout("__get_xattr %s: not found\n", name);
-
-	return NULL;
-}
-
-static void __free_xattr(struct ceph_inode_xattr *xattr)
-{
-	BUG_ON(!xattr);
-
-	if (xattr->should_free_name)
-		kfree((void *)xattr->name);
-	if (xattr->should_free_val)
-		kfree((void *)xattr->val);
-
-	kfree(xattr);
-}
-
-static int __remove_xattr(struct ceph_inode_info *ci,
-			  struct ceph_inode_xattr *xattr)
-{
-	if (!xattr)
-		return -EOPNOTSUPP;
-
-	rb_erase(&xattr->node, &ci->i_xattrs.index);
-
-	if (xattr->should_free_name)
-		kfree((void *)xattr->name);
-	if (xattr->should_free_val)
-		kfree((void *)xattr->val);
-
-	ci->i_xattrs.names_size -= xattr->name_len;
-	ci->i_xattrs.vals_size -= xattr->val_len;
-	ci->i_xattrs.count--;
-	kfree(xattr);
-
-	return 0;
-}
-
-static int __remove_xattr_by_name(struct ceph_inode_info *ci,
-			   const char *name)
-{
-	struct rb_node **p;
-	struct ceph_inode_xattr *xattr;
-	int err;
-
-	p = &ci->i_xattrs.index.rb_node;
-	xattr = __get_xattr(ci, name);
-	err = __remove_xattr(ci, xattr);
-	return err;
-}
-
-static char *__copy_xattr_names(struct ceph_inode_info *ci,
-				char *dest)
-{
-	struct rb_node *p;
-	struct ceph_inode_xattr *xattr = NULL;
-
-	p = rb_first(&ci->i_xattrs.index);
-	dout("__copy_xattr_names count=%d\n", ci->i_xattrs.count);
-
-	while (p) {
-		xattr = rb_entry(p, struct ceph_inode_xattr, node);
-		memcpy(dest, xattr->name, xattr->name_len);
-		dest[xattr->name_len] = '\0';
-
-		dout("dest=%s %p (%s) (%d/%d)\n", dest, xattr, xattr->name,
-		     xattr->name_len, ci->i_xattrs.names_size);
-
-		dest += xattr->name_len + 1;
-		p = rb_next(p);
-	}
-
-	return dest;
-}
-
-void __ceph_destroy_xattrs(struct ceph_inode_info *ci)
-{
-	struct rb_node *p, *tmp;
-	struct ceph_inode_xattr *xattr = NULL;
-
-	p = rb_first(&ci->i_xattrs.index);
-
-	dout("__ceph_destroy_xattrs p=%p\n", p);
-
-	while (p) {
-		xattr = rb_entry(p, struct ceph_inode_xattr, node);
-		tmp = p;
-		p = rb_next(tmp);
-		dout("__ceph_destroy_xattrs next p=%p (%.*s)\n", p,
-		     xattr->name_len, xattr->name);
-		rb_erase(tmp, &ci->i_xattrs.index);
-
-		__free_xattr(xattr);
-	}
-
-	ci->i_xattrs.names_size = 0;
-	ci->i_xattrs.vals_size = 0;
-	ci->i_xattrs.index_version = 0;
-	ci->i_xattrs.count = 0;
-	ci->i_xattrs.index = RB_ROOT;
-}
-
-static int __build_xattrs(struct inode *inode)
-	__releases(ci->i_ceph_lock)
-	__acquires(ci->i_ceph_lock)
-{
-	u32 namelen;
-	u32 numattr = 0;
-	void *p, *end;
-	u32 len;
-	const char *name, *val;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	int xattr_version;
-	struct ceph_inode_xattr **xattrs = NULL;
-	int err = 0;
-	int i;
-
-	dout("__build_xattrs() len=%d\n",
-	     ci->i_xattrs.blob ? (int)ci->i_xattrs.blob->vec.iov_len : 0);
-
-	if (ci->i_xattrs.index_version >= ci->i_xattrs.version)
-		return 0; /* already built */
-
-	__ceph_destroy_xattrs(ci);
-
-start:
-	/* updated internal xattr rb tree */
-	if (ci->i_xattrs.blob && ci->i_xattrs.blob->vec.iov_len > 4) {
-		p = ci->i_xattrs.blob->vec.iov_base;
-		end = p + ci->i_xattrs.blob->vec.iov_len;
-		ceph_decode_32_safe(&p, end, numattr, bad);
-		xattr_version = ci->i_xattrs.version;
-		spin_unlock(&ci->i_ceph_lock);
-
-		xattrs = kcalloc(numattr, sizeof(struct ceph_xattr *),
-				 GFP_NOFS);
-		err = -ENOMEM;
-		if (!xattrs)
-			goto bad_lock;
-		memset(xattrs, 0, numattr*sizeof(struct ceph_xattr *));
-		for (i = 0; i < numattr; i++) {
-			xattrs[i] = kmalloc(sizeof(struct ceph_inode_xattr),
-					    GFP_NOFS);
-			if (!xattrs[i])
-				goto bad_lock;
-		}
-
-		spin_lock(&ci->i_ceph_lock);
-		if (ci->i_xattrs.version != xattr_version) {
-			/* lost a race, retry */
-			for (i = 0; i < numattr; i++)
-				kfree(xattrs[i]);
-			kfree(xattrs);
-			goto start;
-		}
-		err = -EIO;
-		while (numattr--) {
-			ceph_decode_32_safe(&p, end, len, bad);
-			namelen = len;
-			name = p;
-			p += len;
-			ceph_decode_32_safe(&p, end, len, bad);
-			val = p;
-			p += len;
-
-			err = __set_xattr(ci, name, namelen, val, len,
-					  0, 0, 0, &xattrs[numattr]);
-
-			if (err < 0)
-				goto bad;
-		}
-		kfree(xattrs);
-	}
-	ci->i_xattrs.index_version = ci->i_xattrs.version;
-	ci->i_xattrs.dirty = false;
-
-	return err;
-bad_lock:
-	spin_lock(&ci->i_ceph_lock);
-bad:
-	if (xattrs) {
-		for (i = 0; i < numattr; i++)
-			kfree(xattrs[i]);
-		kfree(xattrs);
-	}
-	ci->i_xattrs.names_size = 0;
-	return err;
-}
-
-static int __get_required_blob_size(struct ceph_inode_info *ci, int name_size,
-				    int val_size)
-{
-	/*
-	 * 4 bytes for the length, and additional 4 bytes per each xattr name,
-	 * 4 bytes per each value
-	 */
-	int size = 4 + ci->i_xattrs.count*(4 + 4) +
-			     ci->i_xattrs.names_size +
-			     ci->i_xattrs.vals_size;
-	dout("__get_required_blob_size c=%d names.size=%d vals.size=%d\n",
-	     ci->i_xattrs.count, ci->i_xattrs.names_size,
-	     ci->i_xattrs.vals_size);
-
-	if (name_size)
-		size += 4 + 4 + name_size + val_size;
-
-	return size;
-}
-
-/*
- * If there are dirty xattrs, reencode xattrs into the prealloc_blob
- * and swap into place.
- */
-void __ceph_build_xattrs_blob(struct ceph_inode_info *ci)
-{
-	struct rb_node *p;
-	struct ceph_inode_xattr *xattr = NULL;
-	void *dest;
-
-	dout("__build_xattrs_blob %p\n", &ci->vfs_inode);
-	if (ci->i_xattrs.dirty) {
-		int need = __get_required_blob_size(ci, 0, 0);
-
-		BUG_ON(need > ci->i_xattrs.prealloc_blob->alloc_len);
-
-		p = rb_first(&ci->i_xattrs.index);
-		dest = ci->i_xattrs.prealloc_blob->vec.iov_base;
-
-		ceph_encode_32(&dest, ci->i_xattrs.count);
-		while (p) {
-			xattr = rb_entry(p, struct ceph_inode_xattr, node);
-
-			ceph_encode_32(&dest, xattr->name_len);
-			memcpy(dest, xattr->name, xattr->name_len);
-			dest += xattr->name_len;
-			ceph_encode_32(&dest, xattr->val_len);
-			memcpy(dest, xattr->val, xattr->val_len);
-			dest += xattr->val_len;
-
-			p = rb_next(p);
-		}
-
-		/* adjust buffer len; it may be larger than we need */
-		ci->i_xattrs.prealloc_blob->vec.iov_len =
-			dest - ci->i_xattrs.prealloc_blob->vec.iov_base;
-
-		if (ci->i_xattrs.blob)
-			ceph_buffer_put(ci->i_xattrs.blob);
-		ci->i_xattrs.blob = ci->i_xattrs.prealloc_blob;
-		ci->i_xattrs.prealloc_blob = NULL;
-		ci->i_xattrs.dirty = false;
-		ci->i_xattrs.version++;
-	}
-}
-
-ssize_t ceph_getxattr(struct dentry *dentry, const char *name, void *value,
-		      size_t size)
-{
-	struct inode *inode = dentry->d_inode;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	int err;
-	struct ceph_inode_xattr *xattr;
-	struct ceph_vxattr *vxattr = NULL;
-
-	if (!ceph_is_valid_xattr(name))
-		return -ENODATA;
-
-	/* let's see if a virtual xattr was requested */
-	vxattr = ceph_match_vxattr(inode, name);
-
-	spin_lock(&ci->i_ceph_lock);
-	dout("getxattr %p ver=%lld index_ver=%lld\n", inode,
-	     ci->i_xattrs.version, ci->i_xattrs.index_version);
-
-	if (__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 1) &&
-	    (ci->i_xattrs.index_version >= ci->i_xattrs.version)) {
-		goto get_xattr;
-	} else {
-		spin_unlock(&ci->i_ceph_lock);
-		/* get xattrs from mds (if we don't already have them) */
-		err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR);
-		if (err)
-			return err;
-	}
-
-	spin_lock(&ci->i_ceph_lock);
-
-	if (vxattr && vxattr->readonly) {
-		err = vxattr->getxattr_cb(ci, value, size);
-		goto out;
-	}
-
-	err = __build_xattrs(inode);
-	if (err < 0)
-		goto out;
-
-get_xattr:
-	err = -ENODATA;  /* == ENOATTR */
-	xattr = __get_xattr(ci, name);
-	if (!xattr) {
-		if (vxattr)
-			err = vxattr->getxattr_cb(ci, value, size);
-		goto out;
-	}
-
-	err = -ERANGE;
-	if (size && size < xattr->val_len)
-		goto out;
-
-	err = xattr->val_len;
-	if (size == 0)
-		goto out;
-
-	memcpy(value, xattr->val, xattr->val_len);
-
-out:
-	spin_unlock(&ci->i_ceph_lock);
-	return err;
-}
-
-ssize_t ceph_listxattr(struct dentry *dentry, char *names, size_t size)
-{
-	struct inode *inode = dentry->d_inode;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	struct ceph_vxattr *vxattrs = ceph_inode_vxattrs(inode);
-	u32 vir_namelen = 0;
-	u32 namelen;
-	int err;
-	u32 len;
-	int i;
-
-	spin_lock(&ci->i_ceph_lock);
-	dout("listxattr %p ver=%lld index_ver=%lld\n", inode,
-	     ci->i_xattrs.version, ci->i_xattrs.index_version);
-
-	if (__ceph_caps_issued_mask(ci, CEPH_CAP_XATTR_SHARED, 1) &&
-	    (ci->i_xattrs.index_version >= ci->i_xattrs.version)) {
-		goto list_xattr;
-	} else {
-		spin_unlock(&ci->i_ceph_lock);
-		err = ceph_do_getattr(inode, CEPH_STAT_CAP_XATTR);
-		if (err)
-			return err;
-	}
-
-	spin_lock(&ci->i_ceph_lock);
-
-	err = __build_xattrs(inode);
-	if (err < 0)
-		goto out;
-
-list_xattr:
-	/*
-	 * Start with virtual dir xattr names (if any) (including
-	 * terminating '\0' characters for each).
-	 */
-	vir_namelen = ceph_vxattrs_name_size(vxattrs);
-
-	/* adding 1 byte per each variable due to the null termination */
-	namelen = vir_namelen + ci->i_xattrs.names_size + ci->i_xattrs.count;
-	err = -ERANGE;
-	if (size && namelen > size)
-		goto out;
-
-	err = namelen;
-	if (size == 0)
-		goto out;
-
-	names = __copy_xattr_names(ci, names);
-
-	/* virtual xattr names, too */
-	if (vxattrs)
-		for (i = 0; vxattrs[i].name; i++) {
-			len = sprintf(names, "%s", vxattrs[i].name);
-			names += len + 1;
-		}
-
-out:
-	spin_unlock(&ci->i_ceph_lock);
-	return err;
-}
-
-static int ceph_sync_setxattr(struct dentry *dentry, const char *name,
-			      const char *value, size_t size, int flags)
-{
-	struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
-	struct inode *inode = dentry->d_inode;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	struct inode *parent_inode;
-	struct ceph_mds_request *req;
-	struct ceph_mds_client *mdsc = fsc->mdsc;
-	int err;
-	int i, nr_pages;
-	struct page **pages = NULL;
-	void *kaddr;
-
-	/* copy value into some pages */
-	nr_pages = calc_pages_for(0, size);
-	if (nr_pages) {
-		pages = kmalloc(sizeof(pages[0])*nr_pages, GFP_NOFS);
-		if (!pages)
-			return -ENOMEM;
-		err = -ENOMEM;
-		for (i = 0; i < nr_pages; i++) {
-			pages[i] = __page_cache_alloc(GFP_NOFS);
-			if (!pages[i]) {
-				nr_pages = i;
-				goto out;
-			}
-			kaddr = kmap(pages[i]);
-			memcpy(kaddr, value + i*PAGE_CACHE_SIZE,
-			       min(PAGE_CACHE_SIZE, size-i*PAGE_CACHE_SIZE));
-		}
-	}
-
-	dout("setxattr value=%.*s\n", (int)size, value);
-
-	/* do request */
-	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_SETXATTR,
-				       USE_AUTH_MDS);
-	if (IS_ERR(req)) {
-		err = PTR_ERR(req);
-		goto out;
-	}
-	req->r_inode = inode;
-	ihold(inode);
-	req->r_inode_drop = CEPH_CAP_XATTR_SHARED;
-	req->r_num_caps = 1;
-	req->r_args.setxattr.flags = cpu_to_le32(flags);
-	req->r_path2 = kstrdup(name, GFP_NOFS);
-
-	req->r_pages = pages;
-	req->r_num_pages = nr_pages;
-	req->r_data_len = size;
-
-	dout("xattr.ver (before): %lld\n", ci->i_xattrs.version);
-	parent_inode = ceph_get_dentry_parent_inode(dentry);
-	err = ceph_mdsc_do_request(mdsc, parent_inode, req);
-	iput(parent_inode);
-	ceph_mdsc_put_request(req);
-	dout("xattr.ver (after): %lld\n", ci->i_xattrs.version);
-
-out:
-	if (pages) {
-		for (i = 0; i < nr_pages; i++)
-			__free_page(pages[i]);
-		kfree(pages);
-	}
-	return err;
-}
-
-int ceph_setxattr(struct dentry *dentry, const char *name,
-		  const void *value, size_t size, int flags)
-{
-	struct inode *inode = dentry->d_inode;
-	struct ceph_vxattr *vxattr;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	int issued;
-	int err;
-	int dirty;
-	int name_len = strlen(name);
-	int val_len = size;
-	char *newname = NULL;
-	char *newval = NULL;
-	struct ceph_inode_xattr *xattr = NULL;
-	int required_blob_size;
-
-	if (ceph_snap(inode) != CEPH_NOSNAP)
-		return -EROFS;
-
-	if (!ceph_is_valid_xattr(name))
-		return -EOPNOTSUPP;
-
-	vxattr = ceph_match_vxattr(inode, name);
-	if (vxattr && vxattr->readonly)
-		return -EOPNOTSUPP;
-
-	/* preallocate memory for xattr name, value, index node */
-	err = -ENOMEM;
-	newname = kmemdup(name, name_len + 1, GFP_NOFS);
-	if (!newname)
-		goto out;
-
-	if (val_len) {
-		newval = kmemdup(value, val_len, GFP_NOFS);
-		if (!newval)
-			goto out;
-	}
-
-	xattr = kmalloc(sizeof(struct ceph_inode_xattr), GFP_NOFS);
-	if (!xattr)
-		goto out;
-
-	spin_lock(&ci->i_ceph_lock);
-retry:
-	issued = __ceph_caps_issued(ci, NULL);
-	dout("setxattr %p issued %s\n", inode, ceph_cap_string(issued));
-	if (!(issued & CEPH_CAP_XATTR_EXCL))
-		goto do_sync;
-	__build_xattrs(inode);
-
-	required_blob_size = __get_required_blob_size(ci, name_len, val_len);
-
-	if (!ci->i_xattrs.prealloc_blob ||
-	    required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {
-		struct ceph_buffer *blob;
-
-		spin_unlock(&ci->i_ceph_lock);
-		dout(" preaallocating new blob size=%d\n", required_blob_size);
-		blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
-		if (!blob)
-			goto out;
-		spin_lock(&ci->i_ceph_lock);
-		if (ci->i_xattrs.prealloc_blob)
-			ceph_buffer_put(ci->i_xattrs.prealloc_blob);
-		ci->i_xattrs.prealloc_blob = blob;
-		goto retry;
-	}
-
-	err = __set_xattr(ci, newname, name_len, newval,
-			  val_len, 1, 1, 1, &xattr);
-
-	dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL);
-	ci->i_xattrs.dirty = true;
-	inode->i_ctime = CURRENT_TIME;
-
-	spin_unlock(&ci->i_ceph_lock);
-	if (dirty)
-		__mark_inode_dirty(inode, dirty);
-	return err;
-
-do_sync:
-	spin_unlock(&ci->i_ceph_lock);
-	err = ceph_sync_setxattr(dentry, name, value, size, flags);
-out:
-	kfree(newname);
-	kfree(newval);
-	kfree(xattr);
-	return err;
-}
-
-static int ceph_send_removexattr(struct dentry *dentry, const char *name)
-{
-	struct ceph_fs_client *fsc = ceph_sb_to_client(dentry->d_sb);
-	struct ceph_mds_client *mdsc = fsc->mdsc;
-	struct inode *inode = dentry->d_inode;
-	struct inode *parent_inode;
-	struct ceph_mds_request *req;
-	int err;
-
-	req = ceph_mdsc_create_request(mdsc, CEPH_MDS_OP_RMXATTR,
-				       USE_AUTH_MDS);
-	if (IS_ERR(req))
-		return PTR_ERR(req);
-	req->r_inode = inode;
-	ihold(inode);
-	req->r_inode_drop = CEPH_CAP_XATTR_SHARED;
-	req->r_num_caps = 1;
-	req->r_path2 = kstrdup(name, GFP_NOFS);
-
-	parent_inode = ceph_get_dentry_parent_inode(dentry);
-	err = ceph_mdsc_do_request(mdsc, parent_inode, req);
-	iput(parent_inode);
-	ceph_mdsc_put_request(req);
-	return err;
-}
-
-int ceph_removexattr(struct dentry *dentry, const char *name)
-{
-	struct inode *inode = dentry->d_inode;
-	struct ceph_vxattr *vxattr;
-	struct ceph_inode_info *ci = ceph_inode(inode);
-	int issued;
-	int err;
-	int required_blob_size;
-	int dirty;
-
-	if (ceph_snap(inode) != CEPH_NOSNAP)
-		return -EROFS;
-
-	if (!ceph_is_valid_xattr(name))
-		return -EOPNOTSUPP;
-
-	vxattr = ceph_match_vxattr(inode, name);
-	if (vxattr && vxattr->readonly)
-		return -EOPNOTSUPP;
-
-	err = -ENOMEM;
-	spin_lock(&ci->i_ceph_lock);
-retry:
-	issued = __ceph_caps_issued(ci, NULL);
-	dout("removexattr %p issued %s\n", inode, ceph_cap_string(issued));
-
-	if (!(issued & CEPH_CAP_XATTR_EXCL))
-		goto do_sync;
-	__build_xattrs(inode);
-
-	required_blob_size = __get_required_blob_size(ci, 0, 0);
-
-	if (!ci->i_xattrs.prealloc_blob ||
-	    required_blob_size > ci->i_xattrs.prealloc_blob->alloc_len) {
-		struct ceph_buffer *blob;
-
-		spin_unlock(&ci->i_ceph_lock);
-		dout(" preaallocating new blob size=%d\n", required_blob_size);
-		blob = ceph_buffer_new(required_blob_size, GFP_NOFS);
-		if (!blob)
-			goto out;
-		spin_lock(&ci->i_ceph_lock);
-		if (ci->i_xattrs.prealloc_blob)
-			ceph_buffer_put(ci->i_xattrs.prealloc_blob);
-		ci->i_xattrs.prealloc_blob = blob;
-		goto retry;
-	}
-
-	err = __remove_xattr_by_name(ceph_inode(inode), name);
-
-	dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL);
-	ci->i_xattrs.dirty = true;
-	inode->i_ctime = CURRENT_TIME;
-	spin_unlock(&ci->i_ceph_lock);
-	if (dirty)
-		__mark_inode_dirty(inode, dirty);
-	return err;
-do_sync:
-	spin_unlock(&ci->i_ceph_lock);
-	err = ceph_send_removexattr(dentry, name);
-out:
-	return err;
-}
-