4b6a9316fa
Mark file system inode and similar slab caches subject to SLAB_MEM_SPREAD memory spreading. If a slab cache is marked SLAB_MEM_SPREAD, then anytime that a task that's in a cpuset with the 'memory_spread_slab' option enabled goes to allocate from such a slab cache, the allocations are spread evenly over all the memory nodes (task->mems_allowed) allowed to that task, instead of favoring allocation on the node local to the current cpu. The following inode and similar caches are marked SLAB_MEM_SPREAD: file cache ==== ===== fs/adfs/super.c adfs_inode_cache fs/affs/super.c affs_inode_cache fs/befs/linuxvfs.c befs_inode_cache fs/bfs/inode.c bfs_inode_cache fs/block_dev.c bdev_cache fs/cifs/cifsfs.c cifs_inode_cache fs/coda/inode.c coda_inode_cache fs/dquot.c dquot fs/efs/super.c efs_inode_cache fs/ext2/super.c ext2_inode_cache fs/ext2/xattr.c (fs/mbcache.c) ext2_xattr fs/ext3/super.c ext3_inode_cache fs/ext3/xattr.c (fs/mbcache.c) ext3_xattr fs/fat/cache.c fat_cache fs/fat/inode.c fat_inode_cache fs/freevxfs/vxfs_super.c vxfs_inode fs/hpfs/super.c hpfs_inode_cache fs/isofs/inode.c isofs_inode_cache fs/jffs/inode-v23.c jffs_fm fs/jffs2/super.c jffs2_i fs/jfs/super.c jfs_ip fs/minix/inode.c minix_inode_cache fs/ncpfs/inode.c ncp_inode_cache fs/nfs/direct.c nfs_direct_cache fs/nfs/inode.c nfs_inode_cache fs/ntfs/super.c ntfs_big_inode_cache_name fs/ntfs/super.c ntfs_inode_cache fs/ocfs2/dlm/dlmfs.c dlmfs_inode_cache fs/ocfs2/super.c ocfs2_inode_cache fs/proc/inode.c proc_inode_cache fs/qnx4/inode.c qnx4_inode_cache fs/reiserfs/super.c reiser_inode_cache fs/romfs/inode.c romfs_inode_cache fs/smbfs/inode.c smb_inode_cache fs/sysv/inode.c sysv_inode_cache fs/udf/super.c udf_inode_cache fs/ufs/super.c ufs_inode_cache net/socket.c sock_inode_cache net/sunrpc/rpc_pipe.c rpc_inode_cache The choice of which slab caches to so mark was quite simple. I marked those already marked SLAB_RECLAIM_ACCOUNT, except for fs/xfs, dentry_cache, inode_cache, and buffer_head, which were marked in a previous patch. Even though SLAB_RECLAIM_ACCOUNT is for a different purpose, it marks the same potentially large file system i/o related slab caches as we need for memory spreading. Given that the rule now becomes "wherever you would have used a SLAB_RECLAIM_ACCOUNT slab cache flag before (usually the inode cache), use the SLAB_MEM_SPREAD flag too", this should be easy enough to maintain. Future file system writers will just copy one of the existing file system slab cache setups and tend to get it right without thinking. Signed-off-by: Paul Jackson <pj@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1000 lines
25 KiB
C
1000 lines
25 KiB
C
/*
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* inode.c
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*
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* Copyright (C) 1995, 1996 by Volker Lendecke
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* Modified for big endian by J.F. Chadima and David S. Miller
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* Modified 1997 Peter Waltenberg, Bill Hawes, David Woodhouse for 2.1 dcache
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* Modified 1998 Wolfram Pienkoss for NLS
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* Modified 2000 Ben Harris, University of Cambridge for NFS NS meta-info
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*
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <asm/system.h>
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#include <asm/uaccess.h>
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#include <asm/byteorder.h>
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#include <linux/time.h>
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#include <linux/kernel.h>
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#include <linux/mm.h>
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#include <linux/string.h>
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#include <linux/stat.h>
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#include <linux/errno.h>
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#include <linux/file.h>
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#include <linux/fcntl.h>
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#include <linux/slab.h>
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#include <linux/vmalloc.h>
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#include <linux/init.h>
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#include <linux/smp_lock.h>
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#include <linux/vfs.h>
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#include <linux/ncp_fs.h>
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#include <net/sock.h>
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#include "ncplib_kernel.h"
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#include "getopt.h"
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static void ncp_delete_inode(struct inode *);
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static void ncp_put_super(struct super_block *);
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static int ncp_statfs(struct super_block *, struct kstatfs *);
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static kmem_cache_t * ncp_inode_cachep;
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static struct inode *ncp_alloc_inode(struct super_block *sb)
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{
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struct ncp_inode_info *ei;
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ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, SLAB_KERNEL);
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if (!ei)
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return NULL;
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return &ei->vfs_inode;
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}
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static void ncp_destroy_inode(struct inode *inode)
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{
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kmem_cache_free(ncp_inode_cachep, NCP_FINFO(inode));
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}
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static void init_once(void * foo, kmem_cache_t * cachep, unsigned long flags)
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{
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struct ncp_inode_info *ei = (struct ncp_inode_info *) foo;
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if ((flags & (SLAB_CTOR_VERIFY|SLAB_CTOR_CONSTRUCTOR)) ==
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SLAB_CTOR_CONSTRUCTOR) {
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mutex_init(&ei->open_mutex);
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inode_init_once(&ei->vfs_inode);
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}
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}
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static int init_inodecache(void)
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{
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ncp_inode_cachep = kmem_cache_create("ncp_inode_cache",
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sizeof(struct ncp_inode_info),
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0, SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
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init_once, NULL);
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if (ncp_inode_cachep == NULL)
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return -ENOMEM;
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return 0;
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}
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static void destroy_inodecache(void)
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{
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if (kmem_cache_destroy(ncp_inode_cachep))
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printk(KERN_INFO "ncp_inode_cache: not all structures were freed\n");
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}
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static int ncp_remount(struct super_block *sb, int *flags, char* data)
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{
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*flags |= MS_NODIRATIME;
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return 0;
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}
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static struct super_operations ncp_sops =
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{
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.alloc_inode = ncp_alloc_inode,
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.destroy_inode = ncp_destroy_inode,
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.drop_inode = generic_delete_inode,
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.delete_inode = ncp_delete_inode,
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.put_super = ncp_put_super,
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.statfs = ncp_statfs,
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.remount_fs = ncp_remount,
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};
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extern struct dentry_operations ncp_root_dentry_operations;
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#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
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extern struct address_space_operations ncp_symlink_aops;
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extern int ncp_symlink(struct inode*, struct dentry*, const char*);
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#endif
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/*
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* Fill in the ncpfs-specific information in the inode.
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*/
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static void ncp_update_dirent(struct inode *inode, struct ncp_entry_info *nwinfo)
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{
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NCP_FINFO(inode)->DosDirNum = nwinfo->i.DosDirNum;
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NCP_FINFO(inode)->dirEntNum = nwinfo->i.dirEntNum;
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NCP_FINFO(inode)->volNumber = nwinfo->volume;
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}
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void ncp_update_inode(struct inode *inode, struct ncp_entry_info *nwinfo)
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{
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ncp_update_dirent(inode, nwinfo);
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NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
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NCP_FINFO(inode)->access = nwinfo->access;
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memcpy(NCP_FINFO(inode)->file_handle, nwinfo->file_handle,
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sizeof(nwinfo->file_handle));
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DPRINTK("ncp_update_inode: updated %s, volnum=%d, dirent=%u\n",
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nwinfo->i.entryName, NCP_FINFO(inode)->volNumber,
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NCP_FINFO(inode)->dirEntNum);
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}
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static void ncp_update_dates(struct inode *inode, struct nw_info_struct *nwi)
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{
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/* NFS namespace mode overrides others if it's set. */
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DPRINTK(KERN_DEBUG "ncp_update_dates_and_mode: (%s) nfs.mode=0%o\n",
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nwi->entryName, nwi->nfs.mode);
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if (nwi->nfs.mode) {
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/* XXX Security? */
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inode->i_mode = nwi->nfs.mode;
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}
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inode->i_blocks = (inode->i_size + NCP_BLOCK_SIZE - 1) >> NCP_BLOCK_SHIFT;
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inode->i_mtime.tv_sec = ncp_date_dos2unix(nwi->modifyTime, nwi->modifyDate);
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inode->i_ctime.tv_sec = ncp_date_dos2unix(nwi->creationTime, nwi->creationDate);
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inode->i_atime.tv_sec = ncp_date_dos2unix(0, nwi->lastAccessDate);
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inode->i_atime.tv_nsec = 0;
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inode->i_mtime.tv_nsec = 0;
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inode->i_ctime.tv_nsec = 0;
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}
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static void ncp_update_attrs(struct inode *inode, struct ncp_entry_info *nwinfo)
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{
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struct nw_info_struct *nwi = &nwinfo->i;
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struct ncp_server *server = NCP_SERVER(inode);
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if (nwi->attributes & aDIR) {
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inode->i_mode = server->m.dir_mode;
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/* for directories dataStreamSize seems to be some
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Object ID ??? */
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inode->i_size = NCP_BLOCK_SIZE;
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} else {
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inode->i_mode = server->m.file_mode;
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inode->i_size = le32_to_cpu(nwi->dataStreamSize);
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#ifdef CONFIG_NCPFS_EXTRAS
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if ((server->m.flags & (NCP_MOUNT_EXTRAS|NCP_MOUNT_SYMLINKS))
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&& (nwi->attributes & aSHARED)) {
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switch (nwi->attributes & (aHIDDEN|aSYSTEM)) {
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case aHIDDEN:
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if (server->m.flags & NCP_MOUNT_SYMLINKS) {
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if (/* (inode->i_size >= NCP_MIN_SYMLINK_SIZE)
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&& */ (inode->i_size <= NCP_MAX_SYMLINK_SIZE)) {
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inode->i_mode = (inode->i_mode & ~S_IFMT) | S_IFLNK;
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NCP_FINFO(inode)->flags |= NCPI_KLUDGE_SYMLINK;
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break;
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}
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}
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/* FALLTHROUGH */
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case 0:
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if (server->m.flags & NCP_MOUNT_EXTRAS)
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inode->i_mode |= S_IRUGO;
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break;
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case aSYSTEM:
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if (server->m.flags & NCP_MOUNT_EXTRAS)
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inode->i_mode |= (inode->i_mode >> 2) & S_IXUGO;
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break;
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/* case aSYSTEM|aHIDDEN: */
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default:
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/* reserved combination */
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break;
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}
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}
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#endif
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}
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if (nwi->attributes & aRONLY) inode->i_mode &= ~S_IWUGO;
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}
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void ncp_update_inode2(struct inode* inode, struct ncp_entry_info *nwinfo)
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{
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NCP_FINFO(inode)->flags = 0;
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if (!atomic_read(&NCP_FINFO(inode)->opened)) {
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NCP_FINFO(inode)->nwattr = nwinfo->i.attributes;
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ncp_update_attrs(inode, nwinfo);
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}
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ncp_update_dates(inode, &nwinfo->i);
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ncp_update_dirent(inode, nwinfo);
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}
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/*
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* Fill in the inode based on the ncp_entry_info structure.
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*/
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static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
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{
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struct ncp_server *server = NCP_SERVER(inode);
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NCP_FINFO(inode)->flags = 0;
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ncp_update_attrs(inode, nwinfo);
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DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
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inode->i_nlink = 1;
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inode->i_uid = server->m.uid;
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inode->i_gid = server->m.gid;
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inode->i_blksize = NCP_BLOCK_SIZE;
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ncp_update_dates(inode, &nwinfo->i);
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ncp_update_inode(inode, nwinfo);
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}
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#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
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static struct inode_operations ncp_symlink_inode_operations = {
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.readlink = generic_readlink,
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.follow_link = page_follow_link_light,
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.put_link = page_put_link,
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.setattr = ncp_notify_change,
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};
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#endif
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/*
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* Get a new inode.
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*/
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struct inode *
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ncp_iget(struct super_block *sb, struct ncp_entry_info *info)
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{
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struct inode *inode;
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if (info == NULL) {
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printk(KERN_ERR "ncp_iget: info is NULL\n");
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return NULL;
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}
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inode = new_inode(sb);
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if (inode) {
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atomic_set(&NCP_FINFO(inode)->opened, info->opened);
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inode->i_ino = info->ino;
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ncp_set_attr(inode, info);
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if (S_ISREG(inode->i_mode)) {
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inode->i_op = &ncp_file_inode_operations;
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inode->i_fop = &ncp_file_operations;
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} else if (S_ISDIR(inode->i_mode)) {
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inode->i_op = &ncp_dir_inode_operations;
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inode->i_fop = &ncp_dir_operations;
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#ifdef CONFIG_NCPFS_NFS_NS
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} else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) || S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
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init_special_inode(inode, inode->i_mode,
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new_decode_dev(info->i.nfs.rdev));
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#endif
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#if defined(CONFIG_NCPFS_EXTRAS) || defined(CONFIG_NCPFS_NFS_NS)
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} else if (S_ISLNK(inode->i_mode)) {
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inode->i_op = &ncp_symlink_inode_operations;
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inode->i_data.a_ops = &ncp_symlink_aops;
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#endif
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} else {
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make_bad_inode(inode);
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}
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insert_inode_hash(inode);
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} else
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printk(KERN_ERR "ncp_iget: iget failed!\n");
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return inode;
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}
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static void
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ncp_delete_inode(struct inode *inode)
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{
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truncate_inode_pages(&inode->i_data, 0);
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if (S_ISDIR(inode->i_mode)) {
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DDPRINTK("ncp_delete_inode: put directory %ld\n", inode->i_ino);
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}
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if (ncp_make_closed(inode) != 0) {
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/* We can't do anything but complain. */
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printk(KERN_ERR "ncp_delete_inode: could not close\n");
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}
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clear_inode(inode);
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}
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static void ncp_stop_tasks(struct ncp_server *server) {
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struct sock* sk = server->ncp_sock->sk;
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sk->sk_error_report = server->error_report;
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sk->sk_data_ready = server->data_ready;
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sk->sk_write_space = server->write_space;
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del_timer_sync(&server->timeout_tm);
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flush_scheduled_work();
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}
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static const struct ncp_option ncp_opts[] = {
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{ "uid", OPT_INT, 'u' },
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{ "gid", OPT_INT, 'g' },
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{ "owner", OPT_INT, 'o' },
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{ "mode", OPT_INT, 'm' },
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{ "dirmode", OPT_INT, 'd' },
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{ "timeout", OPT_INT, 't' },
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{ "retry", OPT_INT, 'r' },
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{ "flags", OPT_INT, 'f' },
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{ "wdogpid", OPT_INT, 'w' },
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{ "ncpfd", OPT_INT, 'n' },
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{ "infofd", OPT_INT, 'i' }, /* v5 */
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{ "version", OPT_INT, 'v' },
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{ NULL, 0, 0 } };
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static int ncp_parse_options(struct ncp_mount_data_kernel *data, char *options) {
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int optval;
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char *optarg;
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unsigned long optint;
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int version = 0;
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data->flags = 0;
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data->int_flags = 0;
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data->mounted_uid = 0;
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data->wdog_pid = -1;
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data->ncp_fd = ~0;
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data->time_out = 10;
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data->retry_count = 20;
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data->uid = 0;
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data->gid = 0;
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data->file_mode = 0600;
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data->dir_mode = 0700;
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data->info_fd = -1;
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data->mounted_vol[0] = 0;
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while ((optval = ncp_getopt("ncpfs", &options, ncp_opts, NULL, &optarg, &optint)) != 0) {
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if (optval < 0)
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return optval;
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switch (optval) {
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case 'u':
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data->uid = optint;
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break;
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case 'g':
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data->gid = optint;
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break;
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case 'o':
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data->mounted_uid = optint;
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break;
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case 'm':
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data->file_mode = optint;
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break;
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case 'd':
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data->dir_mode = optint;
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break;
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case 't':
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data->time_out = optint;
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break;
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case 'r':
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data->retry_count = optint;
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break;
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case 'f':
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data->flags = optint;
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break;
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case 'w':
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data->wdog_pid = optint;
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break;
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case 'n':
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data->ncp_fd = optint;
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break;
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case 'i':
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data->info_fd = optint;
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break;
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case 'v':
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if (optint < NCP_MOUNT_VERSION_V4) {
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return -ECHRNG;
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}
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if (optint > NCP_MOUNT_VERSION_V5) {
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return -ECHRNG;
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}
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version = optint;
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break;
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}
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}
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return 0;
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}
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static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
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{
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struct ncp_mount_data_kernel data;
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struct ncp_server *server;
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struct file *ncp_filp;
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struct inode *root_inode;
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struct inode *sock_inode;
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struct socket *sock;
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int error;
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int default_bufsize;
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#ifdef CONFIG_NCPFS_PACKET_SIGNING
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int options;
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#endif
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struct ncp_entry_info finfo;
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server = kmalloc(sizeof(struct ncp_server), GFP_KERNEL);
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if (!server)
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return -ENOMEM;
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sb->s_fs_info = server;
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memset(server, 0, sizeof(struct ncp_server));
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error = -EFAULT;
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if (raw_data == NULL)
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goto out;
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switch (*(int*)raw_data) {
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case NCP_MOUNT_VERSION:
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{
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struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
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data.flags = md->flags;
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data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
|
|
data.mounted_uid = md->mounted_uid;
|
|
data.wdog_pid = md->wdog_pid;
|
|
data.ncp_fd = md->ncp_fd;
|
|
data.time_out = md->time_out;
|
|
data.retry_count = md->retry_count;
|
|
data.uid = md->uid;
|
|
data.gid = md->gid;
|
|
data.file_mode = md->file_mode;
|
|
data.dir_mode = md->dir_mode;
|
|
data.info_fd = -1;
|
|
memcpy(data.mounted_vol, md->mounted_vol,
|
|
NCP_VOLNAME_LEN+1);
|
|
}
|
|
break;
|
|
case NCP_MOUNT_VERSION_V4:
|
|
{
|
|
struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
|
|
|
|
data.flags = md->flags;
|
|
data.int_flags = 0;
|
|
data.mounted_uid = md->mounted_uid;
|
|
data.wdog_pid = md->wdog_pid;
|
|
data.ncp_fd = md->ncp_fd;
|
|
data.time_out = md->time_out;
|
|
data.retry_count = md->retry_count;
|
|
data.uid = md->uid;
|
|
data.gid = md->gid;
|
|
data.file_mode = md->file_mode;
|
|
data.dir_mode = md->dir_mode;
|
|
data.info_fd = -1;
|
|
data.mounted_vol[0] = 0;
|
|
}
|
|
break;
|
|
default:
|
|
error = -ECHRNG;
|
|
if (memcmp(raw_data, "vers", 4) == 0) {
|
|
error = ncp_parse_options(&data, raw_data);
|
|
}
|
|
if (error)
|
|
goto out;
|
|
break;
|
|
}
|
|
error = -EBADF;
|
|
ncp_filp = fget(data.ncp_fd);
|
|
if (!ncp_filp)
|
|
goto out;
|
|
error = -ENOTSOCK;
|
|
sock_inode = ncp_filp->f_dentry->d_inode;
|
|
if (!S_ISSOCK(sock_inode->i_mode))
|
|
goto out_fput;
|
|
sock = SOCKET_I(sock_inode);
|
|
if (!sock)
|
|
goto out_fput;
|
|
|
|
if (sock->type == SOCK_STREAM)
|
|
default_bufsize = 0xF000;
|
|
else
|
|
default_bufsize = 1024;
|
|
|
|
sb->s_flags |= MS_NODIRATIME; /* probably even noatime */
|
|
sb->s_maxbytes = 0xFFFFFFFFU;
|
|
sb->s_blocksize = 1024; /* Eh... Is this correct? */
|
|
sb->s_blocksize_bits = 10;
|
|
sb->s_magic = NCP_SUPER_MAGIC;
|
|
sb->s_op = &ncp_sops;
|
|
|
|
server = NCP_SBP(sb);
|
|
memset(server, 0, sizeof(*server));
|
|
|
|
server->ncp_filp = ncp_filp;
|
|
server->ncp_sock = sock;
|
|
|
|
if (data.info_fd != -1) {
|
|
struct socket *info_sock;
|
|
|
|
error = -EBADF;
|
|
server->info_filp = fget(data.info_fd);
|
|
if (!server->info_filp)
|
|
goto out_fput;
|
|
error = -ENOTSOCK;
|
|
sock_inode = server->info_filp->f_dentry->d_inode;
|
|
if (!S_ISSOCK(sock_inode->i_mode))
|
|
goto out_fput2;
|
|
info_sock = SOCKET_I(sock_inode);
|
|
if (!info_sock)
|
|
goto out_fput2;
|
|
error = -EBADFD;
|
|
if (info_sock->type != SOCK_STREAM)
|
|
goto out_fput2;
|
|
server->info_sock = info_sock;
|
|
}
|
|
|
|
/* server->lock = 0; */
|
|
mutex_init(&server->mutex);
|
|
server->packet = NULL;
|
|
/* server->buffer_size = 0; */
|
|
/* server->conn_status = 0; */
|
|
/* server->root_dentry = NULL; */
|
|
/* server->root_setuped = 0; */
|
|
#ifdef CONFIG_NCPFS_PACKET_SIGNING
|
|
/* server->sign_wanted = 0; */
|
|
/* server->sign_active = 0; */
|
|
#endif
|
|
server->auth.auth_type = NCP_AUTH_NONE;
|
|
/* server->auth.object_name_len = 0; */
|
|
/* server->auth.object_name = NULL; */
|
|
/* server->auth.object_type = 0; */
|
|
/* server->priv.len = 0; */
|
|
/* server->priv.data = NULL; */
|
|
|
|
server->m = data;
|
|
/* Althought anything producing this is buggy, it happens
|
|
now because of PATH_MAX changes.. */
|
|
if (server->m.time_out < 1) {
|
|
server->m.time_out = 10;
|
|
printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
|
|
}
|
|
server->m.time_out = server->m.time_out * HZ / 100;
|
|
server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
|
|
server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;
|
|
|
|
#ifdef CONFIG_NCPFS_NLS
|
|
/* load the default NLS charsets */
|
|
server->nls_vol = load_nls_default();
|
|
server->nls_io = load_nls_default();
|
|
#endif /* CONFIG_NCPFS_NLS */
|
|
|
|
server->dentry_ttl = 0; /* no caching */
|
|
|
|
INIT_LIST_HEAD(&server->tx.requests);
|
|
mutex_init(&server->rcv.creq_mutex);
|
|
server->tx.creq = NULL;
|
|
server->rcv.creq = NULL;
|
|
server->data_ready = sock->sk->sk_data_ready;
|
|
server->write_space = sock->sk->sk_write_space;
|
|
server->error_report = sock->sk->sk_error_report;
|
|
sock->sk->sk_user_data = server;
|
|
|
|
init_timer(&server->timeout_tm);
|
|
#undef NCP_PACKET_SIZE
|
|
#define NCP_PACKET_SIZE 131072
|
|
error = -ENOMEM;
|
|
server->packet_size = NCP_PACKET_SIZE;
|
|
server->packet = vmalloc(NCP_PACKET_SIZE);
|
|
if (server->packet == NULL)
|
|
goto out_nls;
|
|
|
|
sock->sk->sk_data_ready = ncp_tcp_data_ready;
|
|
sock->sk->sk_error_report = ncp_tcp_error_report;
|
|
if (sock->type == SOCK_STREAM) {
|
|
server->rcv.ptr = (unsigned char*)&server->rcv.buf;
|
|
server->rcv.len = 10;
|
|
server->rcv.state = 0;
|
|
INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc, server);
|
|
INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc, server);
|
|
sock->sk->sk_write_space = ncp_tcp_write_space;
|
|
} else {
|
|
INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc, server);
|
|
INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc, server);
|
|
server->timeout_tm.data = (unsigned long)server;
|
|
server->timeout_tm.function = ncpdgram_timeout_call;
|
|
}
|
|
|
|
ncp_lock_server(server);
|
|
error = ncp_connect(server);
|
|
ncp_unlock_server(server);
|
|
if (error < 0)
|
|
goto out_packet;
|
|
DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
|
|
|
|
error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */
|
|
#ifdef CONFIG_NCPFS_PACKET_SIGNING
|
|
if (ncp_negotiate_size_and_options(server, default_bufsize,
|
|
NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
|
|
{
|
|
if (options != NCP_DEFAULT_OPTIONS)
|
|
{
|
|
if (ncp_negotiate_size_and_options(server,
|
|
default_bufsize,
|
|
options & 2,
|
|
&(server->buffer_size), &options) != 0)
|
|
|
|
{
|
|
goto out_disconnect;
|
|
}
|
|
}
|
|
if (options & 2)
|
|
server->sign_wanted = 1;
|
|
}
|
|
else
|
|
#endif /* CONFIG_NCPFS_PACKET_SIGNING */
|
|
if (ncp_negotiate_buffersize(server, default_bufsize,
|
|
&(server->buffer_size)) != 0)
|
|
goto out_disconnect;
|
|
DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
|
|
|
|
memset(&finfo, 0, sizeof(finfo));
|
|
finfo.i.attributes = aDIR;
|
|
finfo.i.dataStreamSize = 0; /* ignored */
|
|
finfo.i.dirEntNum = 0;
|
|
finfo.i.DosDirNum = 0;
|
|
#ifdef CONFIG_NCPFS_SMALLDOS
|
|
finfo.i.NSCreator = NW_NS_DOS;
|
|
#endif
|
|
finfo.volume = NCP_NUMBER_OF_VOLUMES;
|
|
/* set dates of mountpoint to Jan 1, 1986; 00:00 */
|
|
finfo.i.creationTime = finfo.i.modifyTime
|
|
= cpu_to_le16(0x0000);
|
|
finfo.i.creationDate = finfo.i.modifyDate
|
|
= finfo.i.lastAccessDate
|
|
= cpu_to_le16(0x0C21);
|
|
finfo.i.nameLen = 0;
|
|
finfo.i.entryName[0] = '\0';
|
|
|
|
finfo.opened = 0;
|
|
finfo.ino = 2; /* tradition */
|
|
|
|
server->name_space[finfo.volume] = NW_NS_DOS;
|
|
|
|
error = -ENOMEM;
|
|
root_inode = ncp_iget(sb, &finfo);
|
|
if (!root_inode)
|
|
goto out_disconnect;
|
|
DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
|
|
sb->s_root = d_alloc_root(root_inode);
|
|
if (!sb->s_root)
|
|
goto out_no_root;
|
|
sb->s_root->d_op = &ncp_root_dentry_operations;
|
|
return 0;
|
|
|
|
out_no_root:
|
|
iput(root_inode);
|
|
out_disconnect:
|
|
ncp_lock_server(server);
|
|
ncp_disconnect(server);
|
|
ncp_unlock_server(server);
|
|
out_packet:
|
|
ncp_stop_tasks(server);
|
|
vfree(server->packet);
|
|
out_nls:
|
|
#ifdef CONFIG_NCPFS_NLS
|
|
unload_nls(server->nls_io);
|
|
unload_nls(server->nls_vol);
|
|
#endif
|
|
out_fput2:
|
|
if (server->info_filp)
|
|
fput(server->info_filp);
|
|
out_fput:
|
|
/* 23/12/1998 Marcin Dalecki <dalecki@cs.net.pl>:
|
|
*
|
|
* The previously used put_filp(ncp_filp); was bogous, since
|
|
* it doesn't proper unlocking.
|
|
*/
|
|
fput(ncp_filp);
|
|
out:
|
|
sb->s_fs_info = NULL;
|
|
kfree(server);
|
|
return error;
|
|
}
|
|
|
|
static void ncp_put_super(struct super_block *sb)
|
|
{
|
|
struct ncp_server *server = NCP_SBP(sb);
|
|
|
|
ncp_lock_server(server);
|
|
ncp_disconnect(server);
|
|
ncp_unlock_server(server);
|
|
|
|
ncp_stop_tasks(server);
|
|
|
|
#ifdef CONFIG_NCPFS_NLS
|
|
/* unload the NLS charsets */
|
|
if (server->nls_vol)
|
|
{
|
|
unload_nls(server->nls_vol);
|
|
server->nls_vol = NULL;
|
|
}
|
|
if (server->nls_io)
|
|
{
|
|
unload_nls(server->nls_io);
|
|
server->nls_io = NULL;
|
|
}
|
|
#endif /* CONFIG_NCPFS_NLS */
|
|
|
|
if (server->info_filp)
|
|
fput(server->info_filp);
|
|
fput(server->ncp_filp);
|
|
kill_proc(server->m.wdog_pid, SIGTERM, 1);
|
|
|
|
kfree(server->priv.data);
|
|
kfree(server->auth.object_name);
|
|
vfree(server->packet);
|
|
sb->s_fs_info = NULL;
|
|
kfree(server);
|
|
}
|
|
|
|
static int ncp_statfs(struct super_block *sb, struct kstatfs *buf)
|
|
{
|
|
struct dentry* d;
|
|
struct inode* i;
|
|
struct ncp_inode_info* ni;
|
|
struct ncp_server* s;
|
|
struct ncp_volume_info vi;
|
|
int err;
|
|
__u8 dh;
|
|
|
|
d = sb->s_root;
|
|
if (!d) {
|
|
goto dflt;
|
|
}
|
|
i = d->d_inode;
|
|
if (!i) {
|
|
goto dflt;
|
|
}
|
|
ni = NCP_FINFO(i);
|
|
if (!ni) {
|
|
goto dflt;
|
|
}
|
|
s = NCP_SBP(sb);
|
|
if (!s) {
|
|
goto dflt;
|
|
}
|
|
if (!s->m.mounted_vol[0]) {
|
|
goto dflt;
|
|
}
|
|
|
|
err = ncp_dirhandle_alloc(s, ni->volNumber, ni->DosDirNum, &dh);
|
|
if (err) {
|
|
goto dflt;
|
|
}
|
|
err = ncp_get_directory_info(s, dh, &vi);
|
|
ncp_dirhandle_free(s, dh);
|
|
if (err) {
|
|
goto dflt;
|
|
}
|
|
buf->f_type = NCP_SUPER_MAGIC;
|
|
buf->f_bsize = vi.sectors_per_block * 512;
|
|
buf->f_blocks = vi.total_blocks;
|
|
buf->f_bfree = vi.free_blocks;
|
|
buf->f_bavail = vi.free_blocks;
|
|
buf->f_files = vi.total_dir_entries;
|
|
buf->f_ffree = vi.available_dir_entries;
|
|
buf->f_namelen = 12;
|
|
return 0;
|
|
|
|
/* We cannot say how much disk space is left on a mounted
|
|
NetWare Server, because free space is distributed over
|
|
volumes, and the current user might have disk quotas. So
|
|
free space is not that simple to determine. Our decision
|
|
here is to err conservatively. */
|
|
|
|
dflt:;
|
|
buf->f_type = NCP_SUPER_MAGIC;
|
|
buf->f_bsize = NCP_BLOCK_SIZE;
|
|
buf->f_blocks = 0;
|
|
buf->f_bfree = 0;
|
|
buf->f_bavail = 0;
|
|
buf->f_namelen = 12;
|
|
return 0;
|
|
}
|
|
|
|
int ncp_notify_change(struct dentry *dentry, struct iattr *attr)
|
|
{
|
|
struct inode *inode = dentry->d_inode;
|
|
int result = 0;
|
|
__le32 info_mask;
|
|
struct nw_modify_dos_info info;
|
|
struct ncp_server *server;
|
|
|
|
result = -EIO;
|
|
|
|
lock_kernel();
|
|
|
|
server = NCP_SERVER(inode);
|
|
if ((!server) || !ncp_conn_valid(server))
|
|
goto out;
|
|
|
|
/* ageing the dentry to force validation */
|
|
ncp_age_dentry(server, dentry);
|
|
|
|
result = inode_change_ok(inode, attr);
|
|
if (result < 0)
|
|
goto out;
|
|
|
|
result = -EPERM;
|
|
if (((attr->ia_valid & ATTR_UID) &&
|
|
(attr->ia_uid != server->m.uid)))
|
|
goto out;
|
|
|
|
if (((attr->ia_valid & ATTR_GID) &&
|
|
(attr->ia_gid != server->m.gid)))
|
|
goto out;
|
|
|
|
if (((attr->ia_valid & ATTR_MODE) &&
|
|
(attr->ia_mode &
|
|
~(S_IFREG | S_IFDIR | S_IRWXUGO))))
|
|
goto out;
|
|
|
|
info_mask = 0;
|
|
memset(&info, 0, sizeof(info));
|
|
|
|
#if 1
|
|
if ((attr->ia_valid & ATTR_MODE) != 0)
|
|
{
|
|
umode_t newmode = attr->ia_mode;
|
|
|
|
info_mask |= DM_ATTRIBUTES;
|
|
|
|
if (S_ISDIR(inode->i_mode)) {
|
|
newmode &= server->m.dir_mode;
|
|
} else {
|
|
#ifdef CONFIG_NCPFS_EXTRAS
|
|
if (server->m.flags & NCP_MOUNT_EXTRAS) {
|
|
/* any non-default execute bit set */
|
|
if (newmode & ~server->m.file_mode & S_IXUGO)
|
|
info.attributes |= aSHARED | aSYSTEM;
|
|
/* read for group/world and not in default file_mode */
|
|
else if (newmode & ~server->m.file_mode & S_IRUGO)
|
|
info.attributes |= aSHARED;
|
|
} else
|
|
#endif
|
|
newmode &= server->m.file_mode;
|
|
}
|
|
if (newmode & S_IWUGO)
|
|
info.attributes &= ~(aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
|
|
else
|
|
info.attributes |= (aRONLY|aRENAMEINHIBIT|aDELETEINHIBIT);
|
|
|
|
#ifdef CONFIG_NCPFS_NFS_NS
|
|
if (ncp_is_nfs_extras(server, NCP_FINFO(inode)->volNumber)) {
|
|
result = ncp_modify_nfs_info(server,
|
|
NCP_FINFO(inode)->volNumber,
|
|
NCP_FINFO(inode)->dirEntNum,
|
|
attr->ia_mode, 0);
|
|
if (result != 0)
|
|
goto out;
|
|
info.attributes &= ~(aSHARED | aSYSTEM);
|
|
{
|
|
/* mark partial success */
|
|
struct iattr tmpattr;
|
|
|
|
tmpattr.ia_valid = ATTR_MODE;
|
|
tmpattr.ia_mode = attr->ia_mode;
|
|
|
|
result = inode_setattr(inode, &tmpattr);
|
|
if (result)
|
|
goto out;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
#endif
|
|
|
|
/* Do SIZE before attributes, otherwise mtime together with size does not work...
|
|
*/
|
|
if ((attr->ia_valid & ATTR_SIZE) != 0) {
|
|
int written;
|
|
|
|
DPRINTK("ncpfs: trying to change size to %ld\n",
|
|
attr->ia_size);
|
|
|
|
if ((result = ncp_make_open(inode, O_WRONLY)) < 0) {
|
|
result = -EACCES;
|
|
goto out;
|
|
}
|
|
ncp_write_kernel(NCP_SERVER(inode), NCP_FINFO(inode)->file_handle,
|
|
attr->ia_size, 0, "", &written);
|
|
|
|
/* According to ndir, the changes only take effect after
|
|
closing the file */
|
|
ncp_inode_close(inode);
|
|
result = ncp_make_closed(inode);
|
|
if (result)
|
|
goto out;
|
|
{
|
|
struct iattr tmpattr;
|
|
|
|
tmpattr.ia_valid = ATTR_SIZE;
|
|
tmpattr.ia_size = attr->ia_size;
|
|
|
|
result = inode_setattr(inode, &tmpattr);
|
|
if (result)
|
|
goto out;
|
|
}
|
|
}
|
|
if ((attr->ia_valid & ATTR_CTIME) != 0) {
|
|
info_mask |= (DM_CREATE_TIME | DM_CREATE_DATE);
|
|
ncp_date_unix2dos(attr->ia_ctime.tv_sec,
|
|
&info.creationTime, &info.creationDate);
|
|
}
|
|
if ((attr->ia_valid & ATTR_MTIME) != 0) {
|
|
info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE);
|
|
ncp_date_unix2dos(attr->ia_mtime.tv_sec,
|
|
&info.modifyTime, &info.modifyDate);
|
|
}
|
|
if ((attr->ia_valid & ATTR_ATIME) != 0) {
|
|
__le16 dummy;
|
|
info_mask |= (DM_LAST_ACCESS_DATE);
|
|
ncp_date_unix2dos(attr->ia_atime.tv_sec,
|
|
&dummy, &info.lastAccessDate);
|
|
}
|
|
if (info_mask != 0) {
|
|
result = ncp_modify_file_or_subdir_dos_info(NCP_SERVER(inode),
|
|
inode, info_mask, &info);
|
|
if (result != 0) {
|
|
result = -EACCES;
|
|
|
|
if (info_mask == (DM_CREATE_TIME | DM_CREATE_DATE)) {
|
|
/* NetWare seems not to allow this. I
|
|
do not know why. So, just tell the
|
|
user everything went fine. This is
|
|
a terrible hack, but I do not know
|
|
how to do this correctly. */
|
|
result = 0;
|
|
} else
|
|
goto out;
|
|
}
|
|
#ifdef CONFIG_NCPFS_STRONG
|
|
if ((!result) && (info_mask & DM_ATTRIBUTES))
|
|
NCP_FINFO(inode)->nwattr = info.attributes;
|
|
#endif
|
|
}
|
|
if (!result)
|
|
result = inode_setattr(inode, attr);
|
|
out:
|
|
unlock_kernel();
|
|
return result;
|
|
}
|
|
|
|
static struct super_block *ncp_get_sb(struct file_system_type *fs_type,
|
|
int flags, const char *dev_name, void *data)
|
|
{
|
|
return get_sb_nodev(fs_type, flags, data, ncp_fill_super);
|
|
}
|
|
|
|
static struct file_system_type ncp_fs_type = {
|
|
.owner = THIS_MODULE,
|
|
.name = "ncpfs",
|
|
.get_sb = ncp_get_sb,
|
|
.kill_sb = kill_anon_super,
|
|
};
|
|
|
|
static int __init init_ncp_fs(void)
|
|
{
|
|
int err;
|
|
DPRINTK("ncpfs: init_module called\n");
|
|
|
|
err = init_inodecache();
|
|
if (err)
|
|
goto out1;
|
|
err = register_filesystem(&ncp_fs_type);
|
|
if (err)
|
|
goto out;
|
|
return 0;
|
|
out:
|
|
destroy_inodecache();
|
|
out1:
|
|
return err;
|
|
}
|
|
|
|
static void __exit exit_ncp_fs(void)
|
|
{
|
|
DPRINTK("ncpfs: cleanup_module called\n");
|
|
unregister_filesystem(&ncp_fs_type);
|
|
destroy_inodecache();
|
|
}
|
|
|
|
module_init(init_ncp_fs)
|
|
module_exit(exit_ncp_fs)
|
|
MODULE_LICENSE("GPL");
|