int ll_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags)
{
struct inode *inode = d_inode(dentry);
LASSERT(inode);
LASSERT(name);
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
inode->i_ino, inode->i_generation, inode, name);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_SETXATTR, 1);
if ((strncmp(name, XATTR_TRUSTED_PREFIX,
sizeof(XATTR_TRUSTED_PREFIX) - 1) == 0 &&
strcmp(name + sizeof(XATTR_TRUSTED_PREFIX) - 1, "lov") == 0) ||
(strncmp(name, XATTR_LUSTRE_PREFIX,
sizeof(XATTR_LUSTRE_PREFIX) - 1) == 0 &&
strcmp(name + sizeof(XATTR_LUSTRE_PREFIX) - 1, "lov") == 0)) {
struct lov_user_md *lump = (struct lov_user_md *)value;
int rc = 0;
if (size != 0 && size < sizeof(struct lov_user_md))
return -EINVAL;
/* Attributes that are saved via getxattr will always have
* the stripe_offset as 0. Instead, the MDS should be
* allowed to pick the starting OST index. b=17846
*/
if (lump && lump->lmm_stripe_offset == 0)
lump->lmm_stripe_offset = -1;
if (lump && S_ISREG(inode->i_mode)) {
int flags = FMODE_WRITE;
int lum_size = (lump->lmm_magic == LOV_USER_MAGIC_V1) ?
sizeof(*lump) : sizeof(struct lov_user_md_v3);
rc = ll_lov_setstripe_ea_info(inode, dentry, flags, lump,
lum_size);
/* b10667: rc always be 0 here for now */
rc = 0;
} else if (S_ISDIR(inode->i_mode)) {
rc = ll_dir_setstripe(inode, lump, 0);
}
return rc;
} else if (strcmp(name, XATTR_NAME_LMA) == 0 ||
strcmp(name, XATTR_NAME_LINK) == 0)
return 0;
return ll_setxattr_common(inode, name, value, size, flags,
OBD_MD_FLXATTR);
}
int ll_removexattr(struct dentry *dentry, const char *name)
{
struct inode *inode = dentry->d_inode;
LASSERT(inode);
LASSERT(name);
CDEBUG(D_VFSTRACE, "VFS Op:inode=%lu/%u(%p), xattr %s\n",
inode->i_ino, inode->i_generation, inode, name);
ll_stats_ops_tally(ll_i2sbi(inode), LPROC_LL_REMOVEXATTR, 1);
return ll_setxattr_common(inode, name, NULL, 0, 0,
OBD_MD_FLXATTRRM);
}