/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
#include <linux/ext2_fs.h>
#include <linux/crc32.h>
#include <linux/iflags.h>
-#include <asm/semaphore.h>
#include <asm/uaccess.h>
#include "gfs2.h"
int gfs2_internal_read(struct gfs2_inode *ip, struct file_ra_state *ra_state,
char *buf, loff_t *pos, unsigned size)
{
- struct inode *inode = ip->i_vnode;
+ struct inode *inode = &ip->i_inode;
read_descriptor_t desc;
desc.written = 0;
desc.arg.buf = buf;
static loff_t gfs2_llseek(struct file *file, loff_t offset, int origin)
{
- struct gfs2_inode *ip = file->f_mapping->host->u.generic_ip;
+ struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
struct gfs2_holder i_gh;
loff_t error;
unsigned long nr_segs, loff_t *ppos)
{
struct file *filp = iocb->ki_filp;
- struct gfs2_inode *ip = filp->f_mapping->host->u.generic_ip;
+ struct gfs2_inode *ip = GFS2_I(filp->f_mapping->host);
struct gfs2_holder gh;
ssize_t retval;
unsigned long seg;
int error;
error = fdr->fdr_filldir(fdr->fdr_opaque, name, length, offset,
- inum->no_formal_ino, type);
+ inum->no_addr, type);
if (error)
return 1;
static int readdir_reg(struct file *file, void *dirent, filldir_t filldir)
{
struct inode *dir = file->f_mapping->host;
- struct gfs2_inode *dip = dir->u.generic_ip;
+ struct gfs2_inode *dip = GFS2_I(dir);
struct filldir_reg fdr;
struct gfs2_holder d_gh;
uint64_t offset = file->f_pos;
int error;
- fdr.fdr_sbd = dip->i_sbd;
+ fdr.fdr_sbd = GFS2_SB(dir);
fdr.fdr_prefetch = 1;
fdr.fdr_filldir = filldir;
fdr.fdr_opaque = dirent;
static int readdir_bad(struct file *file, void *dirent, filldir_t filldir)
{
struct inode *dir = file->f_mapping->host;
- struct gfs2_inode *dip = dir->u.generic_ip;
- struct gfs2_sbd *sdp = dip->i_sbd;
+ struct gfs2_inode *dip = GFS2_I(dir);
+ struct gfs2_sbd *sdp = GFS2_SB(dir);
struct filldir_reg fdr;
unsigned int entries, size;
struct filldir_bad *fdb;
[iflag_Index] = GFS2_DIF_EXHASH,
[iflag_JournalData] = GFS2_DIF_JDATA,
[iflag_DirectIO] = GFS2_DIF_DIRECTIO,
- [iflag_InheritDirectIO] = GFS2_DIF_INHERIT_DIRECTIO,
- [iflag_InheritJdata] = GFS2_DIF_INHERIT_JDATA,
};
static const u32 gfs2_to_iflags[32] = {
[gfs2fl_ExHash] = IFLAG_INDEX,
[gfs2fl_Jdata] = IFLAG_JOURNAL_DATA,
[gfs2fl_Directio] = IFLAG_DIRECTIO,
- [gfs2fl_InheritDirectio] = IFLAG_INHERITDIRECTIO,
- [gfs2fl_InheritJdata] = IFLAG_INHERITJDATA,
+ [gfs2fl_InheritDirectio] = IFLAG_DIRECTIO,
+ [gfs2fl_InheritJdata] = IFLAG_JOURNAL_DATA,
};
-static int gfs2_get_flags(struct inode *inode, u32 __user *ptr)
+static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
{
- struct gfs2_inode *ip = inode->u.generic_ip;
+ struct inode *inode = filp->f_dentry->d_inode;
+ struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int error;
u32 iflags;
error = gfs2_glock_nq_m_atime(1, &gh);
if (error)
return error;
-
+
iflags = iflags_cvt(gfs2_to_iflags, ip->i_di.di_flags);
if (put_user(iflags, ptr))
error = -EFAULT;
* @mask: Indicates which flags are valid
*
*/
-static int do_gfs2_set_flags(struct inode *inode, u32 flags, u32 mask)
+static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
{
- struct gfs2_inode *ip = inode->u.generic_ip;
+ struct inode *inode = filp->f_dentry->d_inode;
+ struct gfs2_inode *ip = GFS2_I(inode);
+ struct gfs2_sbd *sdp = GFS2_SB(inode);
struct buffer_head *bh;
struct gfs2_holder gh;
int error;
- u32 new_flags;
+ u32 new_flags, flags;
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
- if (error)
+ if (error) {
+ gfs2_holder_uninit(&gh);
return error;
+ }
- new_flags = (ip->i_di.di_flags & ~mask) | (flags & mask);
+ flags = ip->i_di.di_flags;
+ new_flags = (flags & ~mask) | (reqflags & mask);
if ((new_flags ^ flags) == 0)
goto out;
+ if (S_ISDIR(inode->i_mode)) {
+ if ((new_flags ^ flags) & GFS2_DIF_JDATA)
+ new_flags ^= (GFS2_DIF_JDATA|GFS2_DIF_INHERIT_JDATA);
+ if ((new_flags ^ flags) & GFS2_DIF_DIRECTIO)
+ new_flags ^= (GFS2_DIF_DIRECTIO|GFS2_DIF_INHERIT_DIRECTIO);
+ }
+
error = -EINVAL;
if ((new_flags ^ flags) & ~GFS2_FLAGS_USER_SET)
goto out;
- if (S_ISDIR(inode->i_mode)) {
- if ((new_flags ^ flags) & (GFS2_DIF_JDATA | GFS2_DIF_DIRECTIO))
- goto out;
- } else if (S_ISREG(inode->i_mode)) {
- if ((new_flags ^ flags) & (GFS2_DIF_INHERIT_DIRECTIO|
- GFS2_DIF_INHERIT_JDATA))
- goto out;
- } else
- goto out;
-
error = -EPERM;
if (IS_IMMUTABLE(inode) && (new_flags & GFS2_DIF_IMMUTABLE))
goto out;
if (IS_APPEND(inode) && (new_flags & GFS2_DIF_APPENDONLY))
goto out;
- error = gfs2_repermission(inode, MAY_WRITE, NULL);
- if (error)
+ if (((new_flags ^ flags) & GFS2_DIF_IMMUTABLE) &&
+ !capable(CAP_LINUX_IMMUTABLE))
goto out;
+ if (!IS_IMMUTABLE(inode)) {
+ error = permission(inode, MAY_WRITE, NULL);
+ if (error)
+ goto out;
+ }
- error = gfs2_meta_inode_buffer(ip, &bh);
+ error = gfs2_trans_begin(sdp, RES_DINODE, 0);
if (error)
goto out;
+ error = gfs2_meta_inode_buffer(ip, &bh);
+ if (error)
+ goto out_trans_end;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
ip->i_di.di_flags = new_flags;
gfs2_dinode_out(&ip->i_di, bh->b_data);
brelse(bh);
+out_trans_end:
+ gfs2_trans_end(sdp);
out:
gfs2_glock_dq_uninit(&gh);
return error;
}
-static int gfs2_set_flags(struct inode *inode, u32 __user *ptr)
+static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
{
u32 iflags, gfsflags;
if (get_user(iflags, ptr))
return -EFAULT;
gfsflags = iflags_cvt(iflags_to_gfs2, iflags);
- return do_gfs2_set_flags(inode, gfsflags, ~0);
+ return do_gfs2_set_flags(filp, gfsflags, ~0);
}
-int gfs2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
- unsigned long arg)
+static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
switch(cmd) {
case IFLAGS_GET_IOC:
- return gfs2_get_flags(inode, (u32 __user *)arg);
+ return gfs2_get_flags(filp, (u32 __user *)arg);
case IFLAGS_SET_IOC:
- return gfs2_set_flags(inode, (u32 __user *)arg);
+ return gfs2_set_flags(filp, (u32 __user *)arg);
}
return -ENOTTY;
}
static int gfs2_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct gfs2_inode *ip = file->f_mapping->host->u.generic_ip;
+ struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
struct gfs2_holder i_gh;
int error;
static int gfs2_open(struct inode *inode, struct file *file)
{
- struct gfs2_inode *ip = inode->u.generic_ip;
+ struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder i_gh;
struct gfs2_file *fp;
int error;
mutex_init(&fp->f_fl_mutex);
- fp->f_inode = ip;
- fp->f_vfile = file;
-
- gfs2_assert_warn(ip->i_sbd, !file->private_data);
+ gfs2_assert_warn(GFS2_SB(inode), !file->private_data);
file->private_data = fp;
if (S_ISREG(ip->i_di.di_mode)) {
static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync)
{
- struct gfs2_inode *ip = dentry->d_inode->u.generic_ip;
+ struct gfs2_inode *ip = GFS2_I(dentry->d_inode);
- gfs2_log_flush_glock(ip->i_gl);
+ gfs2_log_flush(ip->i_gl->gl_sbd, ip->i_gl);
return 0;
}
static int gfs2_lock(struct file *file, int cmd, struct file_lock *fl)
{
- struct gfs2_inode *ip = file->f_mapping->host->u.generic_ip;
- struct gfs2_sbd *sdp = ip->i_sbd;
+ struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
+ struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host);
struct lm_lockname name =
{ .ln_number = ip->i_num.no_addr,
.ln_type = LM_TYPE_PLOCK };
if (sdp->sd_args.ar_localflocks) {
if (IS_GETLK(cmd)) {
- struct file_lock *tmp;
- lock_kernel();
- tmp = posix_test_lock(file, fl);
+ struct file_lock tmp;
+ int ret;
+ ret = posix_test_lock(file, fl, &tmp);
fl->fl_type = F_UNLCK;
- if (tmp)
- memcpy(fl, tmp, sizeof(struct file_lock));
- unlock_kernel();
+ if (ret)
+ memcpy(fl, &tmp, sizeof(struct file_lock));
return 0;
} else {
- int error;
- lock_kernel();
- error = posix_lock_file_wait(file, fl);
- unlock_kernel();
- return error;
+ return posix_lock_file_wait(file, fl);
}
}
return gfs2_lm_plock(sdp, &name, file, cmd, fl);
}
-/**
- * gfs2_sendfile - Send bytes to a file or socket
- * @in_file: The file to read from
- * @out_file: The file to write to
- * @count: The amount of data
- * @offset: The beginning file offset
- *
- * Outputs: offset - updated according to number of bytes read
- *
- * Returns: The number of bytes sent, errno on failure
- */
-
-static ssize_t gfs2_sendfile(struct file *in_file, loff_t *offset, size_t count,
- read_actor_t actor, void *target)
-{
- return generic_file_sendfile(in_file, offset, count, actor, target);
-}
-
static int do_flock(struct file *file, int cmd, struct file_lock *fl)
{
struct gfs2_file *fp = file->private_data;
struct gfs2_holder *fl_gh = &fp->f_fl_gh;
- struct gfs2_inode *ip = fp->f_inode;
+ struct gfs2_inode *ip = GFS2_I(file->f_dentry->d_inode);
struct gfs2_glock *gl;
unsigned int state;
int flags;
&(struct file_lock){.fl_type = F_UNLCK});
gfs2_glock_dq_uninit(fl_gh);
} else {
- error = gfs2_glock_get(ip->i_sbd,
+ error = gfs2_glock_get(GFS2_SB(&ip->i_inode),
ip->i_num.no_addr, &gfs2_flock_glops,
CREATE, &gl);
if (error)
error = -EAGAIN;
} else {
error = flock_lock_file_wait(file, fl);
- gfs2_assert_warn(ip->i_sbd, !error);
+ gfs2_assert_warn(GFS2_SB(&ip->i_inode), !error);
}
out:
static int gfs2_flock(struct file *file, int cmd, struct file_lock *fl)
{
- struct gfs2_inode *ip = file->f_mapping->host->u.generic_ip;
- struct gfs2_sbd *sdp = ip->i_sbd;
+ struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
+ struct gfs2_sbd *sdp = GFS2_SB(file->f_mapping->host);
if (!(fl->fl_flags & FL_FLOCK))
return -ENOLCK;
return do_flock(file, cmd, fl);
}
-struct file_operations gfs2_file_fops = {
+const struct file_operations gfs2_file_fops = {
.llseek = gfs2_llseek,
.read = gfs2_read,
.readv = gfs2_file_readv,
.write = generic_file_write,
.writev = generic_file_writev,
.aio_write = generic_file_aio_write,
- .ioctl = gfs2_ioctl,
+ .unlocked_ioctl = gfs2_ioctl,
.mmap = gfs2_mmap,
.open = gfs2_open,
.release = gfs2_close,
.fsync = gfs2_fsync,
.lock = gfs2_lock,
- .sendfile = gfs2_sendfile,
+ .sendfile = generic_file_sendfile,
.flock = gfs2_flock,
+ .splice_read = generic_file_splice_read,
+ .splice_write = generic_file_splice_write,
};
-struct file_operations gfs2_dir_fops = {
+const struct file_operations gfs2_dir_fops = {
.readdir = gfs2_readdir,
- .ioctl = gfs2_ioctl,
+ .unlocked_ioctl = gfs2_ioctl,
.open = gfs2_open,
.release = gfs2_close,
.fsync = gfs2_fsync,
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff