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Diffstat (limited to 'fs/xfs/linux-2.6/xfs_iops.c')
-rw-r--r--fs/xfs/linux-2.6/xfs_iops.c317
1 files changed, 158 insertions, 159 deletions
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index d7f6f2d8ac8e..149237304fb6 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -106,7 +106,7 @@ xfs_ichgtime(
xfs_inode_t *ip,
int flags)
{
- struct inode *inode = LINVFS_GET_IP(XFS_ITOV(ip));
+ struct inode *inode = vn_to_inode(XFS_ITOV(ip));
timespec_t tv;
nanotime(&tv);
@@ -198,22 +198,22 @@ xfs_ichgtime_fast(
* Pull the link count and size up from the xfs inode to the linux inode
*/
STATIC void
-validate_fields(
- struct inode *ip)
+xfs_validate_fields(
+ struct inode *ip,
+ struct vattr *vattr)
{
- vnode_t *vp = LINVFS_GET_VP(ip);
- vattr_t va;
+ vnode_t *vp = vn_from_inode(ip);
int error;
- va.va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
- VOP_GETATTR(vp, &va, ATTR_LAZY, NULL, error);
- if (likely(!error)) {
- ip->i_nlink = va.va_nlink;
- ip->i_blocks = va.va_nblocks;
+ vattr->va_mask = XFS_AT_NLINK|XFS_AT_SIZE|XFS_AT_NBLOCKS;
+ VOP_GETATTR(vp, vattr, ATTR_LAZY, NULL, error);
+ if (likely(!error)) {
+ ip->i_nlink = vattr->va_nlink;
+ ip->i_blocks = vattr->va_nblocks;
- /* we're under i_mutex so i_size can't change under us */
- if (i_size_read(ip) != va.va_size)
- i_size_write(ip, va.va_size);
+ /* we're under i_sem so i_size can't change under us */
+ if (i_size_read(ip) != vattr->va_size)
+ i_size_write(ip, vattr->va_size);
}
}
@@ -224,11 +224,11 @@ validate_fields(
* inode, of course, such that log replay can't cause these to be lost).
*/
STATIC int
-linvfs_init_security(
+xfs_init_security(
struct vnode *vp,
struct inode *dir)
{
- struct inode *ip = LINVFS_GET_IP(vp);
+ struct inode *ip = vn_to_inode(vp);
size_t length;
void *value;
char *name;
@@ -257,46 +257,46 @@ linvfs_init_security(
* XXX(hch): nfsd is broken, better fix it instead.
*/
STATIC inline int
-has_fs_struct(struct task_struct *task)
+xfs_has_fs_struct(struct task_struct *task)
{
return (task->fs != init_task.fs);
}
STATIC inline void
-cleanup_inode(
+xfs_cleanup_inode(
vnode_t *dvp,
vnode_t *vp,
- struct dentry *dentry,
+ struct dentry *dentry,
int mode)
{
struct dentry teardown = {};
- int err2;
+ int error;
/* Oh, the horror.
- * If we can't add the ACL or we fail in
- * linvfs_init_security we must back out.
+ * If we can't add the ACL or we fail in
+ * xfs_init_security we must back out.
* ENOSPC can hit here, among other things.
*/
- teardown.d_inode = LINVFS_GET_IP(vp);
+ teardown.d_inode = vn_to_inode(vp);
teardown.d_name = dentry->d_name;
if (S_ISDIR(mode))
- VOP_RMDIR(dvp, &teardown, NULL, err2);
+ VOP_RMDIR(dvp, &teardown, NULL, error);
else
- VOP_REMOVE(dvp, &teardown, NULL, err2);
+ VOP_REMOVE(dvp, &teardown, NULL, error);
VN_RELE(vp);
}
STATIC int
-linvfs_mknod(
+xfs_vn_mknod(
struct inode *dir,
struct dentry *dentry,
int mode,
dev_t rdev)
{
struct inode *ip;
- vattr_t va;
- vnode_t *vp = NULL, *dvp = LINVFS_GET_VP(dir);
+ vattr_t vattr = { 0 };
+ vnode_t *vp = NULL, *dvp = vn_from_inode(dir);
xfs_acl_t *default_acl = NULL;
attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
int error;
@@ -305,99 +305,98 @@ linvfs_mknod(
* Irix uses Missed'em'V split, but doesn't want to see
* the upper 5 bits of (14bit) major.
*/
- if (!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff)
+ if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
return -EINVAL;
- if (test_default_acl && test_default_acl(dvp)) {
- if (!_ACL_ALLOC(default_acl))
+ if (unlikely(test_default_acl && test_default_acl(dvp))) {
+ if (!_ACL_ALLOC(default_acl)) {
return -ENOMEM;
+ }
if (!_ACL_GET_DEFAULT(dvp, default_acl)) {
_ACL_FREE(default_acl);
default_acl = NULL;
}
}
- if (IS_POSIXACL(dir) && !default_acl && has_fs_struct(current))
+ if (IS_POSIXACL(dir) && !default_acl && xfs_has_fs_struct(current))
mode &= ~current->fs->umask;
- memset(&va, 0, sizeof(va));
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
- va.va_mode = mode;
+ vattr.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+ vattr.va_mode = mode;
switch (mode & S_IFMT) {
case S_IFCHR: case S_IFBLK: case S_IFIFO: case S_IFSOCK:
- va.va_rdev = sysv_encode_dev(rdev);
- va.va_mask |= XFS_AT_RDEV;
+ vattr.va_rdev = sysv_encode_dev(rdev);
+ vattr.va_mask |= XFS_AT_RDEV;
/*FALLTHROUGH*/
case S_IFREG:
- VOP_CREATE(dvp, dentry, &va, &vp, NULL, error);
+ VOP_CREATE(dvp, dentry, &vattr, &vp, NULL, error);
break;
case S_IFDIR:
- VOP_MKDIR(dvp, dentry, &va, &vp, NULL, error);
+ VOP_MKDIR(dvp, dentry, &vattr, &vp, NULL, error);
break;
default:
error = EINVAL;
break;
}
- if (!error)
- {
- error = linvfs_init_security(vp, dir);
+ if (unlikely(!error)) {
+ error = xfs_init_security(vp, dir);
if (error)
- cleanup_inode(dvp, vp, dentry, mode);
+ xfs_cleanup_inode(dvp, vp, dentry, mode);
}
- if (default_acl) {
+ if (unlikely(default_acl)) {
if (!error) {
- error = _ACL_INHERIT(vp, &va, default_acl);
- if (!error)
+ error = _ACL_INHERIT(vp, &vattr, default_acl);
+ if (!error)
VMODIFY(vp);
else
- cleanup_inode(dvp, vp, dentry, mode);
+ xfs_cleanup_inode(dvp, vp, dentry, mode);
}
_ACL_FREE(default_acl);
}
- if (!error) {
+ if (likely(!error)) {
ASSERT(vp);
- ip = LINVFS_GET_IP(vp);
+ ip = vn_to_inode(vp);
if (S_ISCHR(mode) || S_ISBLK(mode))
ip->i_rdev = rdev;
else if (S_ISDIR(mode))
- validate_fields(ip);
+ xfs_validate_fields(ip, &vattr);
d_instantiate(dentry, ip);
- validate_fields(dir);
+ xfs_validate_fields(dir, &vattr);
}
return -error;
}
STATIC int
-linvfs_create(
+xfs_vn_create(
struct inode *dir,
struct dentry *dentry,
int mode,
struct nameidata *nd)
{
- return linvfs_mknod(dir, dentry, mode, 0);
+ return xfs_vn_mknod(dir, dentry, mode, 0);
}
STATIC int
-linvfs_mkdir(
+xfs_vn_mkdir(
struct inode *dir,
struct dentry *dentry,
int mode)
{
- return linvfs_mknod(dir, dentry, mode|S_IFDIR, 0);
+ return xfs_vn_mknod(dir, dentry, mode|S_IFDIR, 0);
}
STATIC struct dentry *
-linvfs_lookup(
+xfs_vn_lookup(
struct inode *dir,
struct dentry *dentry,
struct nameidata *nd)
{
- struct vnode *vp = LINVFS_GET_VP(dir), *cvp;
+ struct vnode *vp = vn_from_inode(dir), *cvp;
int error;
if (dentry->d_name.len >= MAXNAMELEN)
@@ -411,11 +410,11 @@ linvfs_lookup(
return NULL;
}
- return d_splice_alias(LINVFS_GET_IP(cvp), dentry);
+ return d_splice_alias(vn_to_inode(cvp), dentry);
}
STATIC int
-linvfs_link(
+xfs_vn_link(
struct dentry *old_dentry,
struct inode *dir,
struct dentry *dentry)
@@ -423,99 +422,102 @@ linvfs_link(
struct inode *ip; /* inode of guy being linked to */
vnode_t *tdvp; /* target directory for new name/link */
vnode_t *vp; /* vp of name being linked */
+ vattr_t vattr;
int error;
ip = old_dentry->d_inode; /* inode being linked to */
if (S_ISDIR(ip->i_mode))
return -EPERM;
- tdvp = LINVFS_GET_VP(dir);
- vp = LINVFS_GET_VP(ip);
+ tdvp = vn_from_inode(dir);
+ vp = vn_from_inode(ip);
VOP_LINK(tdvp, vp, dentry, NULL, error);
- if (!error) {
+ if (likely(!error)) {
VMODIFY(tdvp);
VN_HOLD(vp);
- validate_fields(ip);
+ xfs_validate_fields(ip, &vattr);
d_instantiate(dentry, ip);
}
return -error;
}
STATIC int
-linvfs_unlink(
+xfs_vn_unlink(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode;
vnode_t *dvp; /* directory containing name to remove */
+ vattr_t vattr;
int error;
inode = dentry->d_inode;
- dvp = LINVFS_GET_VP(dir);
+ dvp = vn_from_inode(dir);
VOP_REMOVE(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(dir); /* For size only */
- validate_fields(inode);
+ if (likely(!error)) {
+ xfs_validate_fields(dir, &vattr); /* size needs update */
+ xfs_validate_fields(inode, &vattr);
}
-
return -error;
}
STATIC int
-linvfs_symlink(
+xfs_vn_symlink(
struct inode *dir,
struct dentry *dentry,
const char *symname)
{
struct inode *ip;
- vattr_t va;
+ vattr_t vattr = { 0 };
vnode_t *dvp; /* directory containing name of symlink */
vnode_t *cvp; /* used to lookup symlink to put in dentry */
int error;
- dvp = LINVFS_GET_VP(dir);
+ dvp = vn_from_inode(dir);
cvp = NULL;
- memset(&va, 0, sizeof(va));
- va.va_mode = S_IFLNK |
+ vattr.va_mode = S_IFLNK |
(irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
- va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
+ vattr.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
error = 0;
- VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
+ VOP_SYMLINK(dvp, dentry, &vattr, (char *)symname, &cvp, NULL, error);
if (likely(!error && cvp)) {
- error = linvfs_init_security(cvp, dir);
+ error = xfs_init_security(cvp, dir);
if (likely(!error)) {
- ip = LINVFS_GET_IP(cvp);
+ ip = vn_to_inode(cvp);
d_instantiate(dentry, ip);
- validate_fields(dir);
- validate_fields(ip);
+ xfs_validate_fields(dir, &vattr);
+ xfs_validate_fields(ip, &vattr);
+ } else {
+ xfs_cleanup_inode(dvp, cvp, dentry, 0);
}
}
return -error;
}
STATIC int
-linvfs_rmdir(
+xfs_vn_rmdir(
struct inode *dir,
struct dentry *dentry)
{
struct inode *inode = dentry->d_inode;
- vnode_t *dvp = LINVFS_GET_VP(dir);
+ vnode_t *dvp = vn_from_inode(dir);
+ vattr_t vattr;
int error;
VOP_RMDIR(dvp, dentry, NULL, error);
- if (!error) {
- validate_fields(inode);
- validate_fields(dir);
+ if (likely(!error)) {
+ xfs_validate_fields(inode, &vattr);
+ xfs_validate_fields(dir, &vattr);
}
return -error;
}
STATIC int
-linvfs_rename(
+xfs_vn_rename(
struct inode *odir,
struct dentry *odentry,
struct inode *ndir,
@@ -524,22 +526,21 @@ linvfs_rename(
struct inode *new_inode = ndentry->d_inode;
vnode_t *fvp; /* from directory */
vnode_t *tvp; /* target directory */
+ vattr_t vattr;
int error;
- fvp = LINVFS_GET_VP(odir);
- tvp = LINVFS_GET_VP(ndir);
+ fvp = vn_from_inode(odir);
+ tvp = vn_from_inode(ndir);
VOP_RENAME(fvp, odentry, tvp, ndentry, NULL, error);
- if (error)
- return -error;
-
- if (new_inode)
- validate_fields(new_inode);
-
- validate_fields(odir);
- if (ndir != odir)
- validate_fields(ndir);
- return 0;
+ if (likely(!error)) {
+ if (new_inode)
+ xfs_validate_fields(new_inode, &vattr);
+ xfs_validate_fields(odir, &vattr);
+ if (ndir != odir)
+ xfs_validate_fields(ndir, &vattr);
+ }
+ return -error;
}
/*
@@ -548,7 +549,7 @@ linvfs_rename(
* uio is kmalloced for this reason...
*/
STATIC void *
-linvfs_follow_link(
+xfs_vn_follow_link(
struct dentry *dentry,
struct nameidata *nd)
{
@@ -574,7 +575,7 @@ linvfs_follow_link(
return NULL;
}
- vp = LINVFS_GET_VP(dentry->d_inode);
+ vp = vn_from_inode(dentry->d_inode);
iov.iov_base = link;
iov.iov_len = MAXPATHLEN;
@@ -599,7 +600,7 @@ linvfs_follow_link(
}
STATIC void
-linvfs_put_link(
+xfs_vn_put_link(
struct dentry *dentry,
struct nameidata *nd,
void *p)
@@ -612,12 +613,12 @@ linvfs_put_link(
#ifdef CONFIG_XFS_POSIX_ACL
STATIC int
-linvfs_permission(
+xfs_vn_permission(
struct inode *inode,
int mode,
struct nameidata *nd)
{
- vnode_t *vp = LINVFS_GET_VP(inode);
+ vnode_t *vp = vn_from_inode(inode);
int error;
mode <<= 6; /* convert from linux to vnode access bits */
@@ -625,17 +626,17 @@ linvfs_permission(
return -error;
}
#else
-#define linvfs_permission NULL
+#define xfs_vn_permission NULL
#endif
STATIC int
-linvfs_getattr(
+xfs_vn_getattr(
struct vfsmount *mnt,
struct dentry *dentry,
struct kstat *stat)
{
struct inode *inode = dentry->d_inode;
- vnode_t *vp = LINVFS_GET_VP(inode);
+ vnode_t *vp = vn_from_inode(inode);
int error = 0;
if (unlikely(vp->v_flag & VMODIFIED))
@@ -646,18 +647,17 @@ linvfs_getattr(
}
STATIC int
-linvfs_setattr(
+xfs_vn_setattr(
struct dentry *dentry,
struct iattr *attr)
{
struct inode *inode = dentry->d_inode;
unsigned int ia_valid = attr->ia_valid;
- vnode_t *vp = LINVFS_GET_VP(inode);
- vattr_t vattr;
+ vnode_t *vp = vn_from_inode(inode);
+ vattr_t vattr = { 0 };
int flags = 0;
int error;
- memset(&vattr, 0, sizeof(vattr_t));
if (ia_valid & ATTR_UID) {
vattr.va_mask |= XFS_AT_UID;
vattr.va_uid = attr->ia_uid;
@@ -699,28 +699,27 @@ linvfs_setattr(
#endif
VOP_SETATTR(vp, &vattr, flags, NULL, error);
- if (error)
- return -error;
- vn_revalidate(vp);
- return error;
+ if (likely(!error))
+ __vn_revalidate(vp, &vattr);
+ return -error;
}
STATIC void
-linvfs_truncate(
+xfs_vn_truncate(
struct inode *inode)
{
- block_truncate_page(inode->i_mapping, inode->i_size, linvfs_get_block);
+ block_truncate_page(inode->i_mapping, inode->i_size, xfs_get_blocks);
}
STATIC int
-linvfs_setxattr(
+xfs_vn_setxattr(
struct dentry *dentry,
const char *name,
const void *data,
size_t size,
int flags)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
@@ -744,13 +743,13 @@ linvfs_setxattr(
}
STATIC ssize_t
-linvfs_getxattr(
+xfs_vn_getxattr(
struct dentry *dentry,
const char *name,
void *data,
size_t size)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
@@ -774,12 +773,12 @@ linvfs_getxattr(
}
STATIC ssize_t
-linvfs_listxattr(
+xfs_vn_listxattr(
struct dentry *dentry,
char *data,
size_t size)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
int error, xflags = ATTR_KERNAMELS;
ssize_t result;
@@ -794,11 +793,11 @@ linvfs_listxattr(
}
STATIC int
-linvfs_removexattr(
+xfs_vn_removexattr(
struct dentry *dentry,
const char *name)
{
- vnode_t *vp = LINVFS_GET_VP(dentry->d_inode);
+ vnode_t *vp = vn_from_inode(dentry->d_inode);
char *attr = (char *)name;
attrnames_t *namesp;
int xflags = 0;
@@ -816,45 +815,45 @@ linvfs_removexattr(
}
-struct inode_operations linvfs_file_inode_operations = {
- .permission = linvfs_permission,
- .truncate = linvfs_truncate,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+struct inode_operations xfs_inode_operations = {
+ .permission = xfs_vn_permission,
+ .truncate = xfs_vn_truncate,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
};
-struct inode_operations linvfs_dir_inode_operations = {
- .create = linvfs_create,
- .lookup = linvfs_lookup,
- .link = linvfs_link,
- .unlink = linvfs_unlink,
- .symlink = linvfs_symlink,
- .mkdir = linvfs_mkdir,
- .rmdir = linvfs_rmdir,
- .mknod = linvfs_mknod,
- .rename = linvfs_rename,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+struct inode_operations xfs_dir_inode_operations = {
+ .create = xfs_vn_create,
+ .lookup = xfs_vn_lookup,
+ .link = xfs_vn_link,
+ .unlink = xfs_vn_unlink,
+ .symlink = xfs_vn_symlink,
+ .mkdir = xfs_vn_mkdir,
+ .rmdir = xfs_vn_rmdir,
+ .mknod = xfs_vn_mknod,
+ .rename = xfs_vn_rename,
+ .permission = xfs_vn_permission,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
};
-struct inode_operations linvfs_symlink_inode_operations = {
+struct inode_operations xfs_symlink_inode_operations = {
.readlink = generic_readlink,
- .follow_link = linvfs_follow_link,
- .put_link = linvfs_put_link,
- .permission = linvfs_permission,
- .getattr = linvfs_getattr,
- .setattr = linvfs_setattr,
- .setxattr = linvfs_setxattr,
- .getxattr = linvfs_getxattr,
- .listxattr = linvfs_listxattr,
- .removexattr = linvfs_removexattr,
+ .follow_link = xfs_vn_follow_link,
+ .put_link = xfs_vn_put_link,
+ .permission = xfs_vn_permission,
+ .getattr = xfs_vn_getattr,
+ .setattr = xfs_vn_setattr,
+ .setxattr = xfs_vn_setxattr,
+ .getxattr = xfs_vn_getxattr,
+ .listxattr = xfs_vn_listxattr,
+ .removexattr = xfs_vn_removexattr,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 23:27:31 +0000