]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blobdiff - fs/xfs/linux-2.6/xfs_file.c
Merge branch 'linus'
[mirror_ubuntu-bionic-kernel.git] / fs / xfs / linux-2.6 / xfs_file.c
index ced4404339c7efd214255aed73ba6110d33d0eaf..185567a6a56118cb47dcf6da77b7df8de98f5af5 100644 (file)
 #include <linux/dcache.h>
 #include <linux/smp_lock.h>
 
-static struct vm_operations_struct linvfs_file_vm_ops;
+static struct vm_operations_struct xfs_file_vm_ops;
 #ifdef CONFIG_XFS_DMAPI
-static struct vm_operations_struct linvfs_dmapi_file_vm_ops;
+static struct vm_operations_struct xfs_dmapi_file_vm_ops;
 #endif
 
 STATIC inline ssize_t
-__linvfs_read(
+__xfs_file_read(
        struct kiocb            *iocb,
        char                    __user *buf,
        int                     ioflags,
@@ -58,7 +58,7 @@ __linvfs_read(
 {
        struct iovec            iov = {buf, count};
        struct file             *file = iocb->ki_filp;
-       vnode_t                 *vp = LINVFS_GET_VP(file->f_dentry->d_inode);
+       vnode_t                 *vp = vn_from_inode(file->f_dentry->d_inode);
        ssize_t                 rval;
 
        BUG_ON(iocb->ki_pos != pos);
@@ -71,28 +71,28 @@ __linvfs_read(
 
 
 STATIC ssize_t
-linvfs_aio_read(
+xfs_file_aio_read(
        struct kiocb            *iocb,
        char                    __user *buf,
        size_t                  count,
        loff_t                  pos)
 {
-       return __linvfs_read(iocb, buf, IO_ISAIO, count, pos);
+       return __xfs_file_read(iocb, buf, IO_ISAIO, count, pos);
 }
 
 STATIC ssize_t
-linvfs_aio_read_invis(
+xfs_file_aio_read_invis(
        struct kiocb            *iocb,
        char                    __user *buf,
        size_t                  count,
        loff_t                  pos)
 {
-       return __linvfs_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
+       return __xfs_file_read(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
 }
 
 
 STATIC inline ssize_t
-__linvfs_write(
+__xfs_file_write(
        struct kiocb    *iocb,
        const char      __user *buf,
        int             ioflags,
@@ -102,7 +102,7 @@ __linvfs_write(
        struct iovec    iov = {(void __user *)buf, count};
        struct file     *file = iocb->ki_filp;
        struct inode    *inode = file->f_mapping->host;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        ssize_t         rval;
 
        BUG_ON(iocb->ki_pos != pos);
@@ -115,28 +115,28 @@ __linvfs_write(
 
 
 STATIC ssize_t
-linvfs_aio_write(
+xfs_file_aio_write(
        struct kiocb            *iocb,
        const char              __user *buf,
        size_t                  count,
        loff_t                  pos)
 {
-       return __linvfs_write(iocb, buf, IO_ISAIO, count, pos);
+       return __xfs_file_write(iocb, buf, IO_ISAIO, count, pos);
 }
 
 STATIC ssize_t
-linvfs_aio_write_invis(
+xfs_file_aio_write_invis(
        struct kiocb            *iocb,
        const char              __user *buf,
        size_t                  count,
        loff_t                  pos)
 {
-       return __linvfs_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
+       return __xfs_file_write(iocb, buf, IO_ISAIO|IO_INVIS, count, pos);
 }
 
 
 STATIC inline ssize_t
-__linvfs_readv(
+__xfs_file_readv(
        struct file             *file,
        const struct iovec      *iov,
        int                     ioflags,
@@ -144,8 +144,8 @@ __linvfs_readv(
        loff_t                  *ppos)
 {
        struct inode    *inode = file->f_mapping->host;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
-       struct          kiocb kiocb;
+       vnode_t         *vp = vn_from_inode(inode);
+       struct kiocb    kiocb;
        ssize_t         rval;
 
        init_sync_kiocb(&kiocb, file);
@@ -160,28 +160,28 @@ __linvfs_readv(
 }
 
 STATIC ssize_t
-linvfs_readv(
+xfs_file_readv(
        struct file             *file,
        const struct iovec      *iov,
        unsigned long           nr_segs,
        loff_t                  *ppos)
 {
-       return __linvfs_readv(file, iov, 0, nr_segs, ppos);
+       return __xfs_file_readv(file, iov, 0, nr_segs, ppos);
 }
 
 STATIC ssize_t
-linvfs_readv_invis(
+xfs_file_readv_invis(
        struct file             *file,
        const struct iovec      *iov,
        unsigned long           nr_segs,
        loff_t                  *ppos)
 {
-       return __linvfs_readv(file, iov, IO_INVIS, nr_segs, ppos);
+       return __xfs_file_readv(file, iov, IO_INVIS, nr_segs, ppos);
 }
 
 
 STATIC inline ssize_t
-__linvfs_writev(
+__xfs_file_writev(
        struct file             *file,
        const struct iovec      *iov,
        int                     ioflags,
@@ -189,8 +189,8 @@ __linvfs_writev(
        loff_t                  *ppos)
 {
        struct inode    *inode = file->f_mapping->host;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
-       struct          kiocb kiocb;
+       vnode_t         *vp = vn_from_inode(inode);
+       struct kiocb    kiocb;
        ssize_t         rval;
 
        init_sync_kiocb(&kiocb, file);
@@ -206,34 +206,34 @@ __linvfs_writev(
 
 
 STATIC ssize_t
-linvfs_writev(
+xfs_file_writev(
        struct file             *file,
        const struct iovec      *iov,
        unsigned long           nr_segs,
        loff_t                  *ppos)
 {
-       return __linvfs_writev(file, iov, 0, nr_segs, ppos);
+       return __xfs_file_writev(file, iov, 0, nr_segs, ppos);
 }
 
 STATIC ssize_t
-linvfs_writev_invis(
+xfs_file_writev_invis(
        struct file             *file,
        const struct iovec      *iov,
        unsigned long           nr_segs,
        loff_t                  *ppos)
 {
-       return __linvfs_writev(file, iov, IO_INVIS, nr_segs, ppos);
+       return __xfs_file_writev(file, iov, IO_INVIS, nr_segs, ppos);
 }
 
 STATIC ssize_t
-linvfs_sendfile(
+xfs_file_sendfile(
        struct file             *filp,
        loff_t                  *ppos,
        size_t                  count,
        read_actor_t            actor,
        void                    *target)
 {
-       vnode_t                 *vp = LINVFS_GET_VP(filp->f_dentry->d_inode);
+       vnode_t                 *vp = vn_from_inode(filp->f_dentry->d_inode);
        ssize_t                 rval;
 
        VOP_SENDFILE(vp, filp, ppos, 0, count, actor, target, NULL, rval);
@@ -242,11 +242,11 @@ linvfs_sendfile(
 
 
 STATIC int
-linvfs_open(
+xfs_file_open(
        struct inode    *inode,
        struct file     *filp)
 {
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        int             error;
 
        if (!(filp->f_flags & O_LARGEFILE) && i_size_read(inode) > MAX_NON_LFS)
@@ -259,11 +259,11 @@ linvfs_open(
 
 
 STATIC int
-linvfs_release(
+xfs_file_release(
        struct inode    *inode,
        struct file     *filp)
 {
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        int             error = 0;
 
        if (vp)
@@ -273,13 +273,13 @@ linvfs_release(
 
 
 STATIC int
-linvfs_fsync(
+xfs_file_fsync(
        struct file     *filp,
        struct dentry   *dentry,
        int             datasync)
 {
        struct inode    *inode = dentry->d_inode;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        int             error;
        int             flags = FSYNC_WAIT;
 
@@ -292,7 +292,7 @@ linvfs_fsync(
 }
 
 /*
- * linvfs_readdir maps to VOP_READDIR().
+ * xfs_file_readdir maps to VOP_READDIR().
  * We need to build a uio, cred, ...
  */
 
@@ -301,13 +301,13 @@ linvfs_fsync(
 #ifdef CONFIG_XFS_DMAPI
 
 STATIC struct page *
-linvfs_filemap_nopage(
+xfs_vm_nopage(
        struct vm_area_struct   *area,
        unsigned long           address,
        int                     *type)
 {
        struct inode    *inode = area->vm_file->f_dentry->d_inode;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        xfs_mount_t     *mp = XFS_VFSTOM(vp->v_vfsp);
        int             error;
 
@@ -324,7 +324,7 @@ linvfs_filemap_nopage(
 
 
 STATIC int
-linvfs_readdir(
+xfs_file_readdir(
        struct file     *filp,
        void            *dirent,
        filldir_t       filldir)
@@ -340,7 +340,7 @@ linvfs_readdir(
        xfs_off_t       start_offset, curr_offset;
        xfs_dirent_t    *dbp = NULL;
 
-       vp = LINVFS_GET_VP(filp->f_dentry->d_inode);
+       vp = vn_from_inode(filp->f_dentry->d_inode);
        ASSERT(vp);
 
        /* Try fairly hard to get memory */
@@ -404,39 +404,40 @@ done:
 
 
 STATIC int
-linvfs_file_mmap(
+xfs_file_mmap(
        struct file     *filp,
        struct vm_area_struct *vma)
 {
        struct inode    *ip = filp->f_dentry->d_inode;
-       vnode_t         *vp = LINVFS_GET_VP(ip);
-       vattr_t         va = { .va_mask = XFS_AT_UPDATIME };
+       vnode_t         *vp = vn_from_inode(ip);
+       vattr_t         vattr;
        int             error;
 
-       vma->vm_ops = &linvfs_file_vm_ops;
+       vma->vm_ops = &xfs_file_vm_ops;
 
 #ifdef CONFIG_XFS_DMAPI
        if (vp->v_vfsp->vfs_flag & VFS_DMI) {
-               vma->vm_ops = &linvfs_dmapi_file_vm_ops;
+               vma->vm_ops = &xfs_dmapi_file_vm_ops;
        }
 #endif /* CONFIG_XFS_DMAPI */
 
-       VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
-       if (!error)
-               vn_revalidate(vp);      /* update Linux inode flags */
+       vattr.va_mask = XFS_AT_UPDATIME;
+       VOP_SETATTR(vp, &vattr, XFS_AT_UPDATIME, NULL, error);
+       if (likely(!error))
+               __vn_revalidate(vp, &vattr);    /* update flags */
        return 0;
 }
 
 
 STATIC long
-linvfs_ioctl(
+xfs_file_ioctl(
        struct file     *filp,
        unsigned int    cmd,
        unsigned long   arg)
 {
        int             error;
-       struct inode *inode = filp->f_dentry->d_inode;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       struct inode    *inode = filp->f_dentry->d_inode;
+       vnode_t         *vp = vn_from_inode(inode);
 
        VOP_IOCTL(vp, inode, filp, 0, cmd, (void __user *)arg, error);
        VMODIFY(vp);
@@ -451,14 +452,14 @@ linvfs_ioctl(
 }
 
 STATIC long
-linvfs_ioctl_invis(
+xfs_file_ioctl_invis(
        struct file     *filp,
        unsigned int    cmd,
        unsigned long   arg)
 {
        int             error;
-       struct inode *inode = filp->f_dentry->d_inode;
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       struct inode    *inode = filp->f_dentry->d_inode;
+       vnode_t         *vp = vn_from_inode(inode);
 
        ASSERT(vp);
        VOP_IOCTL(vp, inode, filp, IO_INVIS, cmd, (void __user *)arg, error);
@@ -476,11 +477,11 @@ linvfs_ioctl_invis(
 #ifdef CONFIG_XFS_DMAPI
 #ifdef HAVE_VMOP_MPROTECT
 STATIC int
-linvfs_mprotect(
+xfs_vm_mprotect(
        struct vm_area_struct *vma,
        unsigned int    newflags)
 {
-       vnode_t         *vp = LINVFS_GET_VP(vma->vm_file->f_dentry->d_inode);
+       vnode_t         *vp = vn_from_inode(vma->vm_file->f_dentry->d_inode);
        int             error = 0;
 
        if (vp->v_vfsp->vfs_flag & VFS_DMI) {
@@ -503,10 +504,10 @@ linvfs_mprotect(
  * it back online.
  */
 STATIC int
-linvfs_open_exec(
+xfs_file_open_exec(
        struct inode    *inode)
 {
-       vnode_t         *vp = LINVFS_GET_VP(inode);
+       vnode_t         *vp = vn_from_inode(inode);
        xfs_mount_t     *mp = XFS_VFSTOM(vp->v_vfsp);
        int             error = 0;
        xfs_inode_t     *ip;
@@ -527,69 +528,69 @@ open_exec_out:
 }
 #endif /* HAVE_FOP_OPEN_EXEC */
 
-struct file_operations linvfs_file_operations = {
+struct file_operations xfs_file_operations = {
        .llseek         = generic_file_llseek,
        .read           = do_sync_read,
        .write          = do_sync_write,
-       .readv          = linvfs_readv,
-       .writev         = linvfs_writev,
-       .aio_read       = linvfs_aio_read,
-       .aio_write      = linvfs_aio_write,
-       .sendfile       = linvfs_sendfile,
-       .unlocked_ioctl = linvfs_ioctl,
+       .readv          = xfs_file_readv,
+       .writev         = xfs_file_writev,
+       .aio_read       = xfs_file_aio_read,
+       .aio_write      = xfs_file_aio_write,
+       .sendfile       = xfs_file_sendfile,
+       .unlocked_ioctl = xfs_file_ioctl,
 #ifdef CONFIG_COMPAT
-       .compat_ioctl   = linvfs_compat_ioctl,
+       .compat_ioctl   = xfs_file_compat_ioctl,
 #endif
-       .mmap           = linvfs_file_mmap,
-       .open           = linvfs_open,
-       .release        = linvfs_release,
-       .fsync          = linvfs_fsync,
+       .mmap           = xfs_file_mmap,
+       .open           = xfs_file_open,
+       .release        = xfs_file_release,
+       .fsync          = xfs_file_fsync,
 #ifdef HAVE_FOP_OPEN_EXEC
-       .open_exec      = linvfs_open_exec,
+       .open_exec      = xfs_file_open_exec,
 #endif
 };
 
-struct file_operations linvfs_invis_file_operations = {
+struct file_operations xfs_invis_file_operations = {
        .llseek         = generic_file_llseek,
        .read           = do_sync_read,
        .write          = do_sync_write,
-       .readv          = linvfs_readv_invis,
-       .writev         = linvfs_writev_invis,
-       .aio_read       = linvfs_aio_read_invis,
-       .aio_write      = linvfs_aio_write_invis,
-       .sendfile       = linvfs_sendfile,
-       .unlocked_ioctl = linvfs_ioctl_invis,
+       .readv          = xfs_file_readv_invis,
+       .writev         = xfs_file_writev_invis,
+       .aio_read       = xfs_file_aio_read_invis,
+       .aio_write      = xfs_file_aio_write_invis,
+       .sendfile       = xfs_file_sendfile,
+       .unlocked_ioctl = xfs_file_ioctl_invis,
 #ifdef CONFIG_COMPAT
-       .compat_ioctl   = linvfs_compat_invis_ioctl,
+       .compat_ioctl   = xfs_file_compat_invis_ioctl,
 #endif
-       .mmap           = linvfs_file_mmap,
-       .open           = linvfs_open,
-       .release        = linvfs_release,
-       .fsync          = linvfs_fsync,
+       .mmap           = xfs_file_mmap,
+       .open           = xfs_file_open,
+       .release        = xfs_file_release,
+       .fsync          = xfs_file_fsync,
 };
 
 
-struct file_operations linvfs_dir_operations = {
+struct file_operations xfs_dir_file_operations = {
        .read           = generic_read_dir,
-       .readdir        = linvfs_readdir,
-       .unlocked_ioctl = linvfs_ioctl,
+       .readdir        = xfs_file_readdir,
+       .unlocked_ioctl = xfs_file_ioctl,
 #ifdef CONFIG_COMPAT
-       .compat_ioctl   = linvfs_compat_ioctl,
+       .compat_ioctl   = xfs_file_compat_ioctl,
 #endif
-       .fsync          = linvfs_fsync,
+       .fsync          = xfs_file_fsync,
 };
 
-static struct vm_operations_struct linvfs_file_vm_ops = {
+static struct vm_operations_struct xfs_file_vm_ops = {
        .nopage         = filemap_nopage,
        .populate       = filemap_populate,
 };
 
 #ifdef CONFIG_XFS_DMAPI
-static struct vm_operations_struct linvfs_dmapi_file_vm_ops = {
-       .nopage         = linvfs_filemap_nopage,
+static struct vm_operations_struct xfs_dmapi_file_vm_ops = {
+       .nopage         = xfs_vm_nopage,
        .populate       = filemap_populate,
 #ifdef HAVE_VMOP_MPROTECT
-       .mprotect       = linvfs_mprotect,
+       .mprotect       = xfs_vm_mprotect,
 #endif
 };
 #endif /* CONFIG_XFS_DMAPI */