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----- [<nowiki/>[[msg13023.html|Date Prev]]][<nowiki/>[[msg13025.html|Date Next]]][<nowiki/>[[msg13023.html|Thread Prev]]][<nowiki/>[[msg13017.html|Thread Next]]][<nowiki/>[[index.html#13024|Date Index]]][<nowiki/>[[threads.html#13024|Thread Index]]] <span id="re-vserver-unionfs-and-vserver"></span> = Re: [Vserver] UnionFS and VServer = ----- * '''From:''' Andreas Baetz * '''Date:''' Tue, 18 Apr 2006 09:34:29 +0200 (CEST) ----- <pre>On Monday 17 April 2006 16:18, Sebastian Harl wrote: > Hi there, > > I was trying to compile UnionFS with a 2.6.16-vs2.0.2-rc16 Kernel. It failed > because some (all?) vfs_* functions' signatures changed when applying the > VServer patch. The patch added an additional argument of type 'struct > nameidata *'. > > What is a clean way to resolve this problem? Ideally, unionfs should compile > with a vanilla or a "vserver-kernel". Is there any define I can check to see, > if the VServer patch has been applied? What would be the correct thing to pass > to the vfs_* functions? > > Cheers, > Sebastian I have put together a patch that works with unionfs 1.1.3, plain kernel 2.6.16.1and vserver 2.02-rc14. It works for me for a while now, but that is no guarantee that it will work for you .. It should be no big problem to adopt it to the newest releases, but I didn't do it yet. Andreas</pre> <pre>diff -ur unionfs-1.1.3/Makefile unionfs-1.1.3.new/Makefile --- unionfs-1.1.3/Makefile 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/Makefile 2006-03-14 08:31:44.000000000 +0100 @@ -38,7 +38,8 @@ dirhelper.o rename.o unlink.o lookup.o persistent_inode.o \ commonfops.o dirfops.o print.o malloc_debug.o -BINS := unionctl uniondbg unionimap +#BINS := unionctl uniondbg unionimap +BINS := unionctl uniondbg all: readthereadme unionfs.ko ${BINS} @@ -91,7 +92,7 @@ mkdir -p ${PREFIX}/sbin cp unionctl ${PREFIX}/sbin cp uniondbg ${PREFIX}/sbin - cp unionimap ${PREFIX}/sbin +# cp unionimap ${PREFIX}/sbin mkdir -p ${MANDIR}/man4 mkdir -p ${MANDIR}/man8 cp man/unionfs.4 ${MANDIR}/man4 diff -ur unionfs-1.1.3/commonfops.c unionfs-1.1.3.new/commonfops.c --- unionfs-1.1.3/commonfops.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/commonfops.c 2006-03-14 08:12:13.000000000 +0100 @@ -148,7 +148,7 @@ /* bring it to the same state as an unlinked file */ hidden_dentry = dtohd_index(dentry, dbstart(dentry)); hidden_dir_dentry = lock_parent(hidden_dentry); - err = vfs_unlink(hidden_dir_dentry->d_inode, hidden_dentry); + err = vfs_unlink(hidden_dir_dentry->d_inode, hidden_dentry,NULL); unlock_dir(hidden_dir_dentry); out: diff -ur unionfs-1.1.3/copyup.c unionfs-1.1.3.new/copyup.c --- unionfs-1.1.3/copyup.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/copyup.c 2006-03-29 08:55:10.000000000 +0200 @@ -64,7 +64,7 @@ name_list_orig = name_list; while (*name_list) { ssize_t size; - down(&old_hidden_dentry->d_inode->i_sem); + mutex_lock(&old_hidden_dentry->d_inode->i_mutex); err = security_inode_getxattr(old_hidden_dentry, name_list); if (err) size = err; @@ -73,7 +73,7 @@ old_hidden_dentry->d_inode->i_op-> getxattr(old_hidden_dentry, name_list, attr_value, XATTR_SIZE_MAX); - up(&old_hidden_dentry->d_inode->i_sem); + mutex_unlock(&old_hidden_dentry->d_inode->i_mutex); if (size < 0) { err = size; goto out; @@ -84,7 +84,7 @@ goto out; } - down(&new_hidden_dentry->d_inode->i_sem); + mutex_lock(&new_hidden_dentry->d_inode->i_mutex); err = security_inode_setxattr(old_hidden_dentry, name_list, @@ -101,7 +101,7 @@ attr_value, size, 0); } - up(&new_hidden_dentry->d_inode->i_sem); + mutex_unlock(&new_hidden_dentry->d_inode->i_mutex); if (err < 0) goto out; @@ -252,10 +252,10 @@ current->fsgid = new_hidden_parent_dentry->d_inode->i_gid; if (S_ISDIR(old_hidden_dentry->d_inode->i_mode)) { err = vfs_mkdir(new_hidden_parent_dentry->d_inode, - new_hidden_dentry, S_IRWXU); + new_hidden_dentry, S_IRWXU,NULL); } else if (S_ISLNK(old_hidden_dentry->d_inode->i_mode)) { err = vfs_symlink(new_hidden_parent_dentry->d_inode, - new_hidden_dentry, symbuf, S_IRWXU); + new_hidden_dentry, symbuf, S_IRWXU,NULL); } else if (S_ISBLK(old_hidden_dentry->d_inode->i_mode) || S_ISCHR(old_hidden_dentry->d_inode->i_mode) || S_ISFIFO(old_hidden_dentry->d_inode->i_mode) @@ -263,7 +263,7 @@ err = vfs_mknod(new_hidden_parent_dentry->d_inode, new_hidden_dentry, old_hidden_dentry->d_inode->i_mode, - old_hidden_dentry->d_inode->i_rdev); + old_hidden_dentry->d_inode->i_rdev,NULL); } else if (S_ISREG(old_hidden_dentry->d_inode->i_mode)) { err = vfs_create(new_hidden_parent_dentry->d_inode, new_hidden_dentry, S_IRWXU, NULL); @@ -378,7 +378,7 @@ * or something else happened so let's unlink; we don't * really care about the return value of vfs_unlink */ vfs_unlink(new_hidden_parent_dentry->d_inode, - new_hidden_dentry); + new_hidden_dentry,NULL); goto out_dir; } @@ -684,7 +684,7 @@ current->fsuid = hidden_parent_dentry->d_inode->i_uid; current->fsgid = hidden_parent_dentry->d_inode->i_gid; err = vfs_mkdir(hidden_parent_dentry->d_inode, - hidden_dentry, S_IRWXUGO); + hidden_dentry, S_IRWXUGO,NULL); current->fsuid = saved_uid; current->fsgid = saved_gid; if (!err) diff -ur unionfs-1.1.3/dentry.c unionfs-1.1.3.new/dentry.c --- unionfs-1.1.3/dentry.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/dentry.c 2006-03-29 08:55:10.000000000 +0200 @@ -108,7 +108,7 @@ interpose_flag = INTERPOSE_REVAL_NEG; if (positive) { interpose_flag = INTERPOSE_REVAL; - down(&dentry->d_inode->i_sem); + mutex_lock(&dentry->d_inode->i_mutex); bstart = ibstart(dentry->d_inode); bend = ibend(dentry->d_inode); if (bstart >= 0) { @@ -126,7 +126,7 @@ itohi_ptr(dentry->d_inode) = NULL; ibstart(dentry->d_inode) = -1; ibend(dentry->d_inode) = -1; - up(&dentry->d_inode->i_sem); + mutex_unlock(&dentry->d_inode->i_mutex); } result = unionfs_lookup_backend(dentry, interpose_flag); diff -ur unionfs-1.1.3/dirhelper.c unionfs-1.1.3.new/dirhelper.c --- unionfs-1.1.3/dirhelper.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/dirhelper.c 2006-03-29 08:55:10.000000000 +0200 @@ -78,11 +78,11 @@ continue; } - down(&hidden_dir_dentry->d_inode->i_sem); + mutex_lock(&hidden_dir_dentry->d_inode->i_mutex); err = vfs_unlink(hidden_dir_dentry->d_inode, - hidden_dentry); - up(&hidden_dir_dentry->d_inode->i_sem); + hidden_dentry,NULL); + mutex_unlock(&hidden_dir_dentry->d_inode->i_mutex); DPUT(hidden_dentry); if (err && !IS_COPYUP_ERR(err)) diff -ur unionfs-1.1.3/file.c unionfs-1.1.3.new/file.c --- unionfs-1.1.3/file.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/file.c 2006-03-29 08:55:10.000000000 +0200 @@ -264,10 +264,10 @@ if (!hidden_file->f_op || !hidden_file->f_op->fsync) goto out; - down(&hidden_file->f_dentry->d_inode->i_sem); + mutex_lock(&hidden_file->f_dentry->d_inode->i_mutex); err = hidden_file->f_op->fsync(hidden_file, hidden_file->f_dentry, datasync); - up(&hidden_file->f_dentry->d_inode->i_sem); + mutex_unlock(&hidden_file->f_dentry->d_inode->i_mutex); out: print_exit_status(err); diff -ur unionfs-1.1.3/inode.c unionfs-1.1.3.new/inode.c --- unionfs-1.1.3/inode.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/inode.c 2006-03-29 08:57:22.000000000 +0200 @@ -81,7 +81,7 @@ struct dentry *hidden_dir_dentry; struct iattr newattrs; - down(&whiteout_dentry->d_inode->i_sem); + mutex_lock(&whiteout_dentry->d_inode->i_mutex); newattrs.ia_valid = ATTR_CTIME | ATTR_MODE | ATTR_ATIME | ATTR_MTIME | ATTR_UID | ATTR_GID | ATTR_FORCE | ATTR_KILL_SUID | ATTR_KILL_SGID; @@ -97,7 +97,7 @@ err = notify_change(whiteout_dentry, &newattrs); - up(&whiteout_dentry->d_inode->i_sem); + mutex_unlock(&whiteout_dentry->d_inode->i_mutex); if (err) printk(KERN_WARNING @@ -261,7 +261,7 @@ dbstart(new_dentry)))) { err = vfs_unlink(hidden_dir_dentry->d_inode, - whiteout_dentry); + whiteout_dentry,NULL); } fist_copy_attr_times(dir, hidden_dir_dentry->d_inode); dir->i_nlink = get_nlinks(dir); @@ -289,7 +289,7 @@ if (!(err = is_robranch(old_dentry))) err = vfs_link(hidden_old_dentry, hidden_dir_dentry->d_inode, - hidden_new_dentry); + hidden_new_dentry,NULL); unlock_dir(hidden_dir_dentry); docopyup: @@ -313,7 +313,7 @@ err = vfs_link(hidden_old_dentry, hidden_dir_dentry->d_inode, - hidden_new_dentry); + hidden_new_dentry,NULL); unlock_dir(hidden_dir_dentry); goto check_link; } @@ -392,7 +392,7 @@ if (!(err = is_robranch_super(dentry->d_sb, bstart))) { err = vfs_unlink(hidden_dir_dentry->d_inode, - whiteout_dentry); + whiteout_dentry,NULL); } DPUT(whiteout_dentry); @@ -438,7 +438,7 @@ mode = S_IALLUGO; err = vfs_symlink(hidden_dir_dentry->d_inode, - hidden_dentry, symname, mode); + hidden_dentry, symname, mode,NULL); } unlock_dir(hidden_dir_dentry); @@ -517,7 +517,7 @@ if (!(err = is_robranch_super(dentry->d_sb, bstart))) { err = vfs_unlink(hidden_parent_dentry->d_inode, - whiteout_dentry); + whiteout_dentry,NULL); } DPUT(whiteout_dentry); @@ -556,7 +556,7 @@ if (!(err = is_robranch_super(dentry->d_sb, bindex))) { err = vfs_mkdir(hidden_parent_dentry->d_inode, - hidden_dentry, mode); + hidden_dentry, mode,NULL); } unlock_dir(hidden_parent_dentry); @@ -594,10 +594,10 @@ err = PTR_ERR(whiteout_dentry); goto out; } - down(&hidden_dentry->d_inode->i_sem); + mutex_lock(&hidden_dentry->d_inode->i_mutex); err = vfs_create(hidden_dentry->d_inode, whiteout_dentry, 0600, NULL); - up(&hidden_dentry->d_inode->i_sem); + mutex_unlock(&hidden_dentry->d_inode->i_mutex); DPUT(whiteout_dentry); if (err) { @@ -664,7 +664,7 @@ //found a.wh.foo entry, remove it then do vfs_mkdir if (!(err = is_robranch_super(dentry->d_sb, bstart))) err = vfs_unlink(hidden_parent_dentry->d_inode, - whiteout_dentry); + whiteout_dentry,NULL); DPUT(whiteout_dentry); unlock_dir(hidden_parent_dentry); @@ -698,7 +698,7 @@ } if (!(err = is_robranch_super(dentry->d_sb, bindex))) { err = vfs_mknod(hidden_parent_dentry->d_inode, - hidden_dentry, mode, dev); + hidden_dentry, mode, dev,NULL); } /* XXX this could potentially return a negative hidden_dentry! */ if (err || !hidden_dentry->d_inode) { diff -ur unionfs-1.1.3/main.c unionfs-1.1.3.new/main.c --- unionfs-1.1.3/main.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/main.c 2006-03-29 08:55:10.000000000 +0200 @@ -103,7 +103,7 @@ } } - down(&inode->i_sem); + mutex_lock(&inode->i_mutex); if (atomic_read(&inode->i_count) > 1) goto skip; @@ -172,7 +172,7 @@ fist_print_dentry("Leaving unionfs_interpose", dentry); fist_print_inode("Leaving unionfs_interpose", inode); - up(&inode->i_sem); + mutex_unlock(&inode->i_mutex); out: print_exit_status(err); Only in unionfs-1.1.3.new/: mutex-unionfs.diff-0001.diff diff -ur unionfs-1.1.3/persistent_inode.c unionfs-1.1.3.new/persistent_inode.c --- unionfs-1.1.3/persistent_inode.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/persistent_inode.c 2006-03-29 08:55:10.000000000 +0200 @@ -554,11 +554,11 @@ * create a new entry write it out to the file and return its index */ *uino = spd->usi_next_avail++; - down(&sb->s_lock); + mutex_lock(&sb->s_lock); err = __write_uin(spd, *uino, branchnum, inode_number); if (err) spd->usi_next_avail--; - up(&sb->s_lock); + mutex_unlock(&sb->s_lock); out: print_exit_status(err); return err; diff -ur unionfs-1.1.3/rename.c unionfs-1.1.3.new/rename.c --- unionfs-1.1.3/rename.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/rename.c 2006-03-14 07:43:33.000000000 +0100 @@ -85,7 +85,7 @@ if (!(err = is_robranch_super(old_dentry->d_sb, bindex))) { err = vfs_unlink(hidden_wh_dir_dentry->d_inode, - hidden_wh_dentry); + hidden_wh_dentry,NULL); } DPUT(hidden_wh_dentry); unlock_dir(hidden_wh_dir_dentry); @@ -187,7 +187,7 @@ if (!(err = is_robranch_super(old_dir->i_sb, bindex))) { err = vfs_unlink(unlink_dir_dentry->d_inode, - unlink_dentry); + unlink_dentry,NULL); } fist_copy_attr_times(new_dentry->d_parent->d_inode, @@ -408,7 +408,7 @@ if (!(err = is_robranch_super(old_dir->i_sb, bindex))) err = vfs_unlink(unlink_dir_dentry->d_inode, - unlink_dentry); + unlink_dentry,NULL); fist_copy_attr_times(new_dentry->d_parent->d_inode, unlink_dir_dentry->d_inode); @@ -553,7 +553,7 @@ unlink_dir_dentry = lock_parent(unlink_dentry); if (!(err = is_robranch_super(old_dir->i_sb, info->new_bstart))) err = vfs_unlink(unlink_dir_dentry->d_inode, - unlink_dentry); + unlink_dentry,NULL); fist_copy_attr_times(new_dentry->d_parent->d_inode, unlink_dir_dentry->d_inode); diff -ur unionfs-1.1.3/subr.c unionfs-1.1.3.new/subr.c --- unionfs-1.1.3/subr.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/subr.c 2006-03-14 07:31:29.000000000 +0100 @@ -175,7 +175,7 @@ err = vfs_mkdir(hidden_grand_parent_dentry-> d_inode, hidden_parent_dentry, - S_IRWXU); + S_IRWXU,NULL); unlock_dir(hidden_grand_parent_dentry); if (err || !hidden_parent_dentry->d_inode) { diff -ur unionfs-1.1.3/unionfs.h unionfs-1.1.3.new/unionfs.h --- unionfs-1.1.3/unionfs.h 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/unionfs.h 2006-03-29 08:55:10.000000000 +0200 @@ -776,13 +776,13 @@ { struct dentry *dir = DGET(dentry->d_parent); - down(&dir->d_inode->i_sem); + mutex_lock(&dir->d_inode->i_mutex); return dir; } static inline void unlock_dir(struct dentry *dir) { - up(&dir->d_inode->i_sem); + mutex_unlock(&dir->d_inode->i_mutex); DPUT(dir); } diff -ur unionfs-1.1.3/unlink.c unionfs-1.1.3.new/unlink.c --- unionfs-1.1.3/unlink.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/unlink.c 2006-03-14 08:11:21.000000000 +0100 @@ -49,7 +49,7 @@ DGET(hidden_dentry); if (!(err = is_robranch_super(dentry->d_sb, bindex))) err = vfs_unlink(hidden_dir_dentry->d_inode, - hidden_dentry); + hidden_dentry,NULL); DPUT(hidden_dentry); fist_copy_attr_times(dir, hidden_dir_dentry->d_inode); unlock_dir(hidden_dir_dentry); @@ -117,7 +117,7 @@ /* avoid destroying the hidden inode if the file is in use */ DGET(hidden_dentry); if (!(err = is_robranch_super(dentry->d_sb, bindex))) - err = vfs_unlink(hidden_dir_dentry->d_inode, hidden_dentry); + err = vfs_unlink(hidden_dir_dentry->d_inode, hidden_dentry,NULL); DPUT(hidden_dentry); fist_copy_attr_times(dir, hidden_dir_dentry->d_inode); unlock_dir(hidden_dir_dentry); @@ -200,7 +200,7 @@ /* avoid destroying the hidden inode if the file is in use */ DGET(hidden_dentry); if (!(err = is_robranch(dentry))) { - err = vfs_rmdir(hidden_dir_dentry->d_inode, hidden_dentry); + err = vfs_rmdir(hidden_dir_dentry->d_inode, hidden_dentry,NULL); } DPUT(hidden_dentry); @@ -244,7 +244,7 @@ if (!(err = is_robranch_super(dentry->d_sb, bindex))) { err = vfs_rmdir(hidden_dir_dentry->d_inode, - hidden_dentry); + hidden_dentry,NULL); } } else { err = -EISDIR; diff -ur unionfs-1.1.3/xattr.c unionfs-1.1.3.new/xattr.c --- unionfs-1.1.3/xattr.c 2006-02-20 23:47:06.000000000 +0100 +++ unionfs-1.1.3.new/xattr.c 2006-03-29 08:55:10.000000000 +0200 @@ -51,7 +51,7 @@ } /* BKL held by caller. - * dentry->d_inode->i_sem down + * dentry->d_inode->i_mutex locked * ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t); */ ssize_t unionfs_getxattr(struct dentry *dentry, const char *name, void *value, @@ -77,14 +77,14 @@ encoded_value = (char *)value; - down(&hidden_dentry->d_inode->i_sem); + mutex_lock(&hidden_dentry->d_inode->i_mutex); /* lock_kernel() already done by caller. */ err = hidden_dentry->d_inode->i_op->getxattr(hidden_dentry, encoded_name, encoded_value, size); /* unlock_kernel() will be done by caller. */ - up(&hidden_dentry->d_inode->i_sem); + mutex_unlock(&hidden_dentry->d_inode->i_mutex); } @@ -94,7 +94,7 @@ } /* BKL held by caller. - * dentry->d_inode->i_sem down + * dentry->d_inode->i_mutex locked */ int unionfs_setxattr(struct dentry *dentry, const char *name, const void *value, @@ -112,12 +112,12 @@ name, (unsigned long)size, flags); if (hidden_dentry->d_inode->i_op->setxattr) { - down(&hidden_dentry->d_inode->i_sem); + mutex_lock(&hidden_dentry->d_inode->i_mutex); /* lock_kernel() already done by caller. */ err = hidden_dentry->d_inode->i_op-> setxattr(hidden_dentry, name, value, size, flags); /* unlock_kernel() will be done by caller. */ - up(&hidden_dentry->d_inode->i_sem); + mutex_unlock(&hidden_dentry->d_inode->i_mutex); } unlock_dentry(dentry); @@ -126,7 +126,7 @@ } /* BKL held by caller. - * dentry->d_inode->i_sem down + * dentry->d_inode->i_mutex locked */ int unionfs_removexattr(struct dentry *dentry, const char *name) { @@ -143,13 +143,13 @@ if (hidden_dentry->d_inode->i_op->removexattr) { encoded_name = (char *)name; - down(&hidden_dentry->d_inode->i_sem); + mutex_lock(&hidden_dentry->d_inode->i_mutex); /* lock_kernel() already done by caller. */ err = hidden_dentry->d_inode->i_op->removexattr(hidden_dentry, encoded_name); /* unlock_kernel() will be done by caller. */ - up(&hidden_dentry->d_inode->i_sem); + mutex_unlock(&hidden_dentry->d_inode->i_mutex); } unlock_dentry(dentry); @@ -158,7 +158,7 @@ } /* BKL held by caller. - * dentry->d_inode->i_sem down + * dentry->d_inode->i_mutex locked */ ssize_t unionfs_listxattr(struct dentry * dentry, char *list, size_t size) { @@ -173,13 +173,13 @@ if (hidden_dentry->d_inode->i_op->listxattr) { encoded_list = list; - down(&hidden_dentry->d_inode->i_sem); + mutex_lock(&hidden_dentry->d_inode->i_mutex); /* lock_kernel() already done by caller. */ err = hidden_dentry->d_inode->i_op->listxattr(hidden_dentry, encoded_list, size); /* unlock_kernel() will be done by caller. */ - up(&hidden_dentry->d_inode->i_sem); + mutex_unlock(&hidden_dentry->d_inode->i_mutex); } unlock_dentry(dentry);</pre> ----- * '''References''': ** '''[[msg13016.html|[Vserver] UnionFS and VServer]]''' *** ''From:'' Sebastian Harl * Prev by Date: '''[[msg13023.html|Re: [Vserver] UnionFS and VServer]]''' * Next by Date: '''[[msg13025.html|[Vserver] VMWare-Server and vserver]]''' * Previous by thread: '''[[msg13023.html|Re: [Vserver] UnionFS and VServer]]''' * Next by thread: '''[[msg13017.html|[Vserver] switching from gentoo style to plain]]''' * Index(es): ** [[index.html#13024|'''Date''']] ** [[threads.html#13024|'''Thread''']]
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