E: philip@raptor.com
D: Kernel / timekeeping stuff
+N: Richard E. Gooch
+E: rgooch@atnf.csiro.au
+D: Device FileSystem (devfs)
+S: CSIRO Australia Telescope National Facility
+S: P.O. Box 76, Epping
+S: New South Wales, 2121
+S: Australia
+
N: Dmitry S. Gorodchanin
E: pgmdsg@ibi.com
D: RISCom/8 driver, misc kernel fixes.
S: USA
N: Stephen Tweedie
-E: sct@dcs.ed.ac.uk
-P: 1024/E7A417AD E2 FE A4 20 34 EC ED FC 7D 7E 67 8D E0 31 D1 69
+E: sct@redhat.com
+P: 1024D/43BE7544 D2A4 8556 08E6 90E7 076C BA3F 243F 20A4 43BE 7544
D: Second extended file system developer
D: General filesystem hacker
D: kswap vm management code
-S: Dept. of Computer Science
-S: University of Edinburgh
-S: JCMB, The King's Buildings
-S: Mayfield Road
-S: Edinburgh
-S: EH9 3JZ
+S: 44 Campbell Park Crescent
+S: Edinburgh EH13 0HT
S: United Kingdom
N: Thomas Uhl
There are archives of the mailing list at:
http://tichy.ch.uj.edu.pl/lists/linux-arcnet
-The people on linux-net@vger.rutgers.edu have also been known to be very
+The people on linux-net@vger.kernel.org have also been known to be very
helpful, especially when we're talking about ALPHA Linux kernels that may or
may not work right in the first place.
There is an active mailing list for discussing Linux amateur radio matters
called linux-hams. To subscribe to it, send a message to
-Majordomo@vger.rutgers.edu with the words "subscribe linux-hams" in the body
+majordomo@vger.kernel.org with the words "subscribe linux-hams" in the body
of the message, the subject field is ignored.
Jonathan G4KLX
L: linux-kernel@vger.kernel.org
S: Maintained
+DEVICE FILESYSTEM
+P: Richard Gooch
+M: rgooch@atnf.csiro.au
+L: linux-kernel@vger.kernel.org
+S: Maintained
+
DIGIBOARD DRIVER
P: Christoph Lameter
M: clameter@fuller.edu
please (!) contact me first.
New versions of the driver will be announced on the linux-hams
- mailing list on vger.rutgers.edu. To subscribe send an e-mail
- to majordomo@vger.rutgers.edu with the following line in
+ mailing list on vger.kernel.org. To subscribe send an e-mail
+ to majordomo@vger.kernel.org with the following line in
the body of the mail:
subscribe linux-hams
maybe the DC390 log messages to the report.
Bug reports should be send to me (Kurt Garloff <dc390@garloff.de>) as well
-as to the linux-scsi list (<linux-scsi@vger.rutgers.edu>), as sometimes bugs
+as to the linux-scsi list (<linux-scsi@vger.kernel.org>), as sometimes bugs
are caused by the SCSI mid-level code.
I will ask you for some more details and probably I will also ask you to
bprm->argc++;
}
}
- if (!bprm->p) {
+ if ((long)bprm->p < 0) {
if (elf_interpreter) {
kfree(elf_interpreter);
}
iput(interpreter_inode);
kfree(elf_phdata);
sys_close(elf_exec_fileno);
- return -E2BIG;
+ return (long)bprm->p;
}
}
if (flush_old_exec(bprm)) {
}
bprm->p = copy_strings(1, &i_name, bprm->page, bprm->p, 2);
bprm->argc++;
- if (!bprm->p)
- return -E2BIG;
+ if ((long)bprm->p < 0)
+ return (long)bprm->p;
/*
* OK, now restart the process with the interpreter's inode.
* Note that we use open_namei() as the name is now in kernel
i_name = bprm->buf;
bprm->p = copy_strings(1, &i_name, bprm->page, bprm->p, 2);
bprm->argc++;
- if (!bprm->p)
- return -E2BIG;
+ if ((long)bprm->p < 0)
+ return (long)bprm->p;
/*
* OK, now restart the process with the interpreter's inode.
* Note that we use open_namei() as the name is now in kernel
i_name = bprm->buf;
bprm->p = copy_strings(1, &i_name, bprm->page, bprm->p, 2);
bprm->argc++;
- if (!bprm->p)
- return -E2BIG;
+ if ((long)bprm->p < 0)
+ return (long)bprm->p;
/*
* OK, now restart the process with the interpreter's inode.
* Note that we use open_namei() as the name is now in kernel
{
char *cp, *interp, *i_name, *i_arg;
int retval;
- if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!') || (bprm->sh_bang))
+ if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!') || (bprm->sh_bang))
return -ENOEXEC;
/*
* This section does the #! interpretation.
interp = i_name = cp;
i_arg = 0;
for ( ; *cp && (*cp != ' ') && (*cp != '\t'); cp++) {
- if (*cp == '/')
+ if (*cp == '/')
i_name = cp+1;
}
while ((*cp == ' ') || (*cp == '\t'))
}
bprm->p = copy_strings(1, &i_name, bprm->page, bprm->p, 2);
bprm->argc++;
- if (!bprm->p)
- return -E2BIG;
+ if ((long)bprm->p < 0)
+ return (long)bprm->p;
/*
* OK, now restart the process with the interpreter's inode.
* Note that we use open_namei() as the name is now in kernel
int block, blocks;
loff_t offset;
int chars;
- int written = 0;
+ int written = 0, retval = 0;
struct buffer_head * bhlist[NBUF];
unsigned int size;
kdev_t dev;
else
size = INT_MAX;
while (count>0) {
- if (block >= size)
- return written ? written : -ENOSPC;
+ if (block >= size) {
+ retval = -ENOSPC;
+ goto cleanup;
+ }
chars = blocksize - offset;
if (chars > count)
chars=count;
bhlist[i] = getblk (dev, block+i, blocksize);
if(!bhlist[i]){
while(i >= 0) brelse(bhlist[i--]);
- return written ? written : -EIO;
+ retval= -EIO;
+ goto cleanup;
};
};
ll_rw_block(READ, blocks, bhlist);
};
#endif
block++;
- if (!bh)
- return written ? written : -EIO;
+ if (!bh) {
+ retval = -EIO;
+ goto cleanup;
+ }
p = offset + bh->b_data;
offset = 0;
filp->f_pos += chars;
if(write_error)
break;
}
+ cleanup:
if ( buffercount ){
ll_rw_block(WRITE, buffercount, bufferlist);
for(i=0; i<buffercount; i++){
brelse(bufferlist[i]);
}
}
- filp->f_reada = 1;
+ if(!retval)
+ filp->f_reada = 1;
if(write_error)
return -EIO;
- return written;
+ return written ? written : retval;
}
int block_read(struct inode * inode, struct file * filp,
--- /dev/null
+#ifndef _LINUX_DEVFS_FS_H
+#define _LINUX_DEVFS_FS_H
+
+#include <linux/ioctl.h>
+
+#define DEVFSD_PROTOCOL_REVISION_KERNEL 5
+
+#define DEVFSD_IOCTL_BASE 'd'
+
+/* These are the various ioctls */
+#define DEVFSDIOC_GET_PROTO_REV _IOR(DEVFSD_IOCTL_BASE, 0, int)
+#define DEVFSDIOC_SET_EVENT_MASK _IOW(DEVFSD_IOCTL_BASE, 2, int)
+#define DEVFSDIOC_RELEASE_EVENT_QUEUE _IOW(DEVFSD_IOCTL_BASE, 3, int)
+#define DEVFSDIOC_SET_DEBUG_MASK _IOW(DEVFSD_IOCTL_BASE, 4, int)
+
+#define DEVFSD_NOTIFY_REGISTERED 0
+#define DEVFSD_NOTIFY_UNREGISTERED 1
+#define DEVFSD_NOTIFY_ASYNC_OPEN 2
+#define DEVFSD_NOTIFY_CLOSE 3
+#define DEVFSD_NOTIFY_LOOKUP 4
+#define DEVFSD_NOTIFY_CHANGE 5
+#define DEVFSD_NOTIFY_CREATE 6
+
+#define DEVFS_PATHLEN 1024 /* Never change this otherwise the
+ binary interface will change */
+
+struct devfsd_notify_struct
+{
+ unsigned int type; /* DEVFSD_NOTIFY_* value */
+ unsigned int mode; /* Mode of the inode or device entry */
+ unsigned int major; /* Major number of device entry */
+ unsigned int minor; /* Minor number of device entry */
+ unsigned int uid; /* Uid of process, inode or device entry */
+ unsigned int gid; /* Gid of process, inode or device entry */
+ unsigned int overrun_count; /* Number of lost events */
+ unsigned int namelen; /* Number of characters not including '\0' */
+ /* The device name MUST come last */
+ char devname[DEVFS_PATHLEN]; /* This will be '\0' terminated */
+};
+
+
+#endif /* _LINUX_DEVFS_FS_H */
--- /dev/null
+#ifndef _LINUX_DEVFS_FS_KERNEL_H
+#define _LINUX_DEVFS_FS_KERNEL_H
+
+#include <linux/fs.h>
+#include <linux/config.h>
+
+#define DEVFS_SUPER_MAGIC 0x1373
+
+#define IS_DEVFS_INODE(inode) (DEVFS_SUPER_MAGIC == (inode)->i_sb->s_magic)
+
+#define DEVFS_MINOR(inode) \
+ ({unsigned int m; /* evil GCC trickery */ \
+ ((inode)->i_sb && \
+ ((inode)->i_sb->s_magic==DEVFS_SUPER_MAGIC) && \
+ (devfs_get_maj_min(devfs_get_handle_from_inode((inode)),NULL,&m)==0) \
+ ) ? m : MINOR((inode)->r_dev); })
+
+
+#define DEVFS_FL_NONE 0x000 /* This helps to make code more readable
+ */
+#define DEVFS_FL_AUTO_OWNER 0x001 /* When a closed inode is opened the
+ ownerships are set to the opening
+ process and the protection is set to
+ that given in <<mode>>. When the inode
+ is closed, ownership reverts back to
+ <<uid>> and <<gid>> and the protection
+ is set to read-write for all */
+#define DEVFS_FL_SHOW_UNREG 0x002 /* Show unregistered entries in
+ directory listings */
+#define DEVFS_FL_HIDE 0x004 /* Do not show entry in directory list */
+#define DEVFS_FL_AUTO_DEVNUM 0x008 /* Automatically generate device number
+ */
+#define DEVFS_FL_AOPEN_NOTIFY 0x010 /* Asynchronously notify devfsd on open
+ */
+#define DEVFS_FL_REMOVABLE 0x020 /* This is a removable media device */
+#define DEVFS_FL_WAIT 0x040 /* Wait for devfsd to finish */
+#define DEVFS_FL_NO_PERSISTENCE 0x080 /* Forget changes after unregister */
+#define DEVFS_FL_CURRENT_OWNER 0x100 /* Set initial ownership to current */
+#define DEVFS_FL_DEFAULT DEVFS_FL_NONE
+
+
+#define DEVFS_SPECIAL_CHR 0
+#define DEVFS_SPECIAL_BLK 1
+
+typedef struct devfs_entry * devfs_handle_t;
+
+
+#ifdef CONFIG_BLK_DEV_INITRD
+# define ROOT_DEVICE_NAME ((real_root_dev ==ROOT_DEV) ? root_device_name:NULL)
+#else
+# define ROOT_DEVICE_NAME root_device_name
+#endif
+
+
+#ifdef CONFIG_DEVFS_FS
+extern devfs_handle_t devfs_register (devfs_handle_t dir, const char *name,
+ unsigned int flags,
+ unsigned int major, unsigned int minor,
+ umode_t mode, void *ops, void *info);
+extern void devfs_unregister (devfs_handle_t de);
+extern int devfs_mk_symlink (devfs_handle_t dir, const char *name,
+ unsigned int flags, const char *link,
+ devfs_handle_t *handle, void *info);
+extern devfs_handle_t devfs_mk_dir (devfs_handle_t dir, const char *name,
+ void *info);
+extern devfs_handle_t devfs_find_handle (devfs_handle_t dir, const char *name,
+ unsigned int major,unsigned int minor,
+ char type, int traverse_symlinks);
+extern int devfs_get_flags (devfs_handle_t de, unsigned int *flags);
+extern int devfs_set_flags (devfs_handle_t de, unsigned int flags);
+extern int devfs_get_maj_min (devfs_handle_t de,
+ unsigned int *major, unsigned int *minor);
+extern devfs_handle_t devfs_get_handle_from_inode (struct inode *inode);
+extern int devfs_generate_path (devfs_handle_t de, char *path, int buflen);
+extern void *devfs_get_ops (devfs_handle_t de);
+extern int devfs_set_file_size (devfs_handle_t de, unsigned long size);
+extern void *devfs_get_info (devfs_handle_t de);
+extern int devfs_set_info (devfs_handle_t de, void *info);
+extern devfs_handle_t devfs_get_parent (devfs_handle_t de);
+extern devfs_handle_t devfs_get_first_child (devfs_handle_t de);
+extern devfs_handle_t devfs_get_next_sibling (devfs_handle_t de);
+extern void devfs_auto_unregister (devfs_handle_t master,devfs_handle_t slave);
+extern devfs_handle_t devfs_get_unregister_slave (devfs_handle_t master);
+extern const char *devfs_get_name (devfs_handle_t de, unsigned int *namelen);
+extern int devfs_register_chrdev (unsigned int major, const char *name,
+ struct file_operations *fops);
+extern int devfs_register_blkdev (unsigned int major, const char *name,
+ struct block_device_operations *bdops);
+extern int devfs_unregister_chrdev (unsigned int major, const char *name);
+extern int devfs_unregister_blkdev (unsigned int major, const char *name);
+
+extern void devfs_register_tape (devfs_handle_t de);
+extern void devfs_register_series (devfs_handle_t dir, const char *format,
+ unsigned int num_entries,
+ unsigned int flags, unsigned int major,
+ unsigned int minor_start,
+ umode_t mode, void *ops, void *info);
+
+extern int init_devfs_fs (void);
+extern void mount_devfs_fs (void);
+extern void devfs_make_root (const char *name);
+#else /* CONFIG_DEVFS_FS */
+static inline devfs_handle_t devfs_register (devfs_handle_t dir,
+ const char *name,
+ unsigned int flags,
+ unsigned int major,
+ unsigned int minor,
+ umode_t mode,
+ void *ops, void *info)
+{
+ return NULL;
+}
+static inline void devfs_unregister (devfs_handle_t de)
+{
+ return;
+}
+static inline int devfs_mk_symlink (devfs_handle_t dir, const char *name,
+ unsigned int flags, const char *link,
+ devfs_handle_t *handle, void *info)
+{
+ return 0;
+}
+static inline devfs_handle_t devfs_mk_dir (devfs_handle_t dir,
+ const char *name, void *info)
+{
+ return NULL;
+}
+static inline devfs_handle_t devfs_find_handle (devfs_handle_t dir,
+ const char *name,
+ unsigned int major,
+ unsigned int minor,
+ char type,
+ int traverse_symlinks)
+{
+ return NULL;
+}
+static inline int devfs_get_flags (devfs_handle_t de, unsigned int *flags)
+{
+ return 0;
+}
+static inline int devfs_set_flags (devfs_handle_t de, unsigned int flags)
+{
+ return 0;
+}
+static inline int devfs_get_maj_min (devfs_handle_t de,
+ unsigned int *major, unsigned int *minor)
+{
+ return 0;
+}
+static inline devfs_handle_t devfs_get_handle_from_inode (struct inode *inode)
+{
+ return NULL;
+}
+static inline int devfs_generate_path (devfs_handle_t de, char *path,
+ int buflen)
+{
+ return -ENOSYS;
+}
+static inline void *devfs_get_ops (devfs_handle_t de)
+{
+ return NULL;
+}
+static inline int devfs_set_file_size (devfs_handle_t de, unsigned long size)
+{
+ return -ENOSYS;
+}
+static inline void *devfs_get_info (devfs_handle_t de, unsigned long size)
+{
+ return NULL;
+}
+static inline int devfs_set_info (devfs_handle_t de, void *info)
+{
+ return 0;
+}
+static inline devfs_handle_t devfs_get_parent (devfs_handle_t de)
+{
+ return NULL;
+}
+static inline devfs_handle_t devfs_get_first_child (devfs_handle_t de)
+{
+ return NULL;
+}
+static inline devfs_handle_t devfs_get_next_sibling (devfs_handle_t de)
+{
+ return NULL;
+}
+static inline void devfs_auto_unregister (devfs_handle_t master,
+ devfs_handle_t slave)
+{
+ return;
+}
+static inline devfs_handle_t devfs_get_unregister_slave (devfs_handle_t master)
+{
+ return NULL;
+}
+static inline const char *devfs_get_name (devfs_handle_t de,
+ unsigned int *namelen)
+{
+ return NULL;
+}
+static inline int devfs_register_chrdev (unsigned int major, const char *name,
+ struct file_operations *fops)
+{
+ return register_chrdev (major, name, fops);
+}
+static inline int devfs_register_blkdev (unsigned int major, const char *name,
+ struct block_device_operations *bdops)
+{
+ return register_blkdev (major, name, bdops);
+}
+static inline int devfs_unregister_chrdev (unsigned int major,const char *name)
+{
+ return unregister_chrdev (major, name);
+}
+static inline int devfs_unregister_blkdev (unsigned int major,const char *name)
+{
+ return unregister_blkdev (major, name);
+}
+
+static inline void devfs_register_tape (devfs_handle_t de)
+{
+ return;
+}
+
+static inline void devfs_register_series (devfs_handle_t dir,
+ const char *format,
+ unsigned int num_entries,
+ unsigned int flags,
+ unsigned int major,
+ unsigned int minor_start,
+ umode_t mode, void *ops, void *info)
+{
+ return;
+}
+
+static inline int init_devfs_fs (void)
+{
+ return 0;
+}
+static inline void mount_devfs_fs (void)
+{
+ return;
+}
+static inline void devfs_make_root (const char *name)
+{
+ return;
+}
+#endif /* CONFIG_DEVFS_FS */
+
+#endif /* _LINUX_DEVFS_FS_KERNEL_H */
* Heiko EiBfeldt : Missing verify_area check
* Alan Cox : Shutdown() bug
* Michael Deutschmann : release was writing to the socket
- * structure after freeing it.
+ * structure after freeing it.
*
* Known differences from reference BSD that was tested:
*
unix_socket *sk=(unix_socket *)data;
if(sk->protinfo.af_unix.locks==0 && sk->wmem_alloc==0)
{
- if(sk->protinfo.af_unix.name)
- kfree(sk->protinfo.af_unix.name);
+ kfree(sk->protinfo.af_unix.name);
sk_free(sk);
return;
}
if(--sk->protinfo.af_unix.locks==0 && sk->wmem_alloc==0)
{
- if(sk->protinfo.af_unix.name)
- kfree(sk->protinfo.af_unix.name);
+ kfree(sk->protinfo.af_unix.name);
sk_free(sk);
}
else
if(len>256|| len <=0)
return NULL;
cm=kmalloc(len, GFP_KERNEL);
+ if(cm==NULL)
+ return NULL;
memcpy_fromfs(cm, userp, len);
return cm;
}
/*
* Attach the file descriptor array to an sk_buff
*/
-static void unix_attach_fds(int fpnum,struct file **fp,struct sk_buff *skb)
+static int unix_attach_fds(int fpnum,struct file **fp,struct sk_buff *skb)
{
- skb->h.filp = kmalloc(sizeof(long)+fpnum*sizeof(struct file *),
+ skb->h.filp = kmalloc(sizeof(long)+fpnum*sizeof(struct file *),
GFP_KERNEL);
+ if(skb->h.filp==NULL)
+ return -ENOMEM;
/* number of descriptors starts block */
*(int *)skb->h.filp = fpnum;
/* actual descriptors */
memcpy(skb->h.filp+sizeof(long),fp,fpnum*sizeof(struct file *));
skb->destructor = unix_destruct_fds;
+ return 0;
}
/*
if(fpnum)
{
- unix_attach_fds(fpnum,fp,skb);
+ int err=unix_attach_fds(fpnum,fp,skb);
+ if(err)
+ return err;
fpnum=0;
}
else
{
cm=unix_copyrights(msg->msg_control,
msg->msg_controllen);
- if(msg->msg_controllen<sizeof(struct cmsghdr)
+ if(cm==NULL || msg->msg_controllen<sizeof(struct cmsghdr)
#if 0
/* investigate this further -- Stevens example doesn't seem to care */
||
configuration files and is unable to continue.
Please report this to the author <roadcapw@titus.org>. You may also
-send a problem report to linux-kernel@vger.rutgers.edu or post a
+send a problem report to linux-kernel@vger.kernel.org or post a
message to the linux.dev.kernel news group.
Please indicate the kernel version you are trying to configure and
projects / history.git / commitdiff