X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=fs%2Fgfs2%2Fops_inode.c;h=49877546beb91477c32ce1362f8f5afdb20ce511;hb=38c8e6180939e5619140b2e9e479cb26029ff8b1;hp=6fff30ef8b70238b2c450435a232f61d61445e87;hpb=aa6a85a971065b013a71a399c3fc4312e2dd81eb;p=safe%2Fjmp%2Flinux-2.6 diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c index 6fff30e..4987754 100644 --- a/fs/gfs2/ops_inode.c +++ b/fs/gfs2/ops_inode.c @@ -1,13 +1,12 @@ /* * 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 - * of the GNU General Public License v.2. + * of the GNU General Public License version 2. */ -#include #include #include #include @@ -17,10 +16,14 @@ #include #include #include -#include +#include +#include +#include +#include #include #include "gfs2.h" +#include "incore.h" #include "acl.h" #include "bmap.h" #include "dir.h" @@ -29,13 +32,11 @@ #include "glock.h" #include "inode.h" #include "meta_io.h" -#include "ops_dentry.h" -#include "ops_inode.h" -#include "page.h" #include "quota.h" #include "rgrp.h" #include "trans.h" -#include "unlinked.h" +#include "util.h" +#include "super.h" /** * gfs2_create - Create a file @@ -49,54 +50,43 @@ static int gfs2_create(struct inode *dir, struct dentry *dentry, int mode, struct nameidata *nd) { - struct gfs2_inode *dip = get_v2ip(dir), *ip; - struct gfs2_sbd *sdp = dip->i_sbd; + struct gfs2_inode *dip = GFS2_I(dir); + struct gfs2_sbd *sdp = GFS2_SB(dir); struct gfs2_holder ghs[2]; struct inode *inode; - int new = 1; - int error; - - atomic_inc(&sdp->sd_ops_inode); gfs2_holder_init(dip->i_gl, 0, 0, ghs); for (;;) { - error = gfs2_createi(ghs, &dentry->d_name, S_IFREG | mode); - if (!error) { - ip = get_gl2ip(ghs[1].gh_gl); + inode = gfs2_createi(ghs, &dentry->d_name, S_IFREG | mode, 0); + if (!IS_ERR(inode)) { gfs2_trans_end(sdp); - if (dip->i_alloc.al_rgd) + if (dip->i_alloc->al_rgd) gfs2_inplace_release(dip); gfs2_quota_unlock(dip); gfs2_alloc_put(dip); gfs2_glock_dq_uninit_m(2, ghs); + mark_inode_dirty(inode); break; - } else if (error != -EEXIST || - (nd->intent.open.flags & O_EXCL)) { + } else if (PTR_ERR(inode) != -EEXIST || + (nd && nd->flags & LOOKUP_EXCL)) { gfs2_holder_uninit(ghs); - return error; + return PTR_ERR(inode); } - error = gfs2_lookupi(dip, &dentry->d_name, 0, &ip); - if (!error) { - new = 0; - gfs2_holder_uninit(ghs); - break; - } else if (error != -ENOENT) { - gfs2_holder_uninit(ghs); - return error; + inode = gfs2_lookupi(dir, &dentry->d_name, 0); + if (inode) { + if (!IS_ERR(inode)) { + gfs2_holder_uninit(ghs); + break; + } else { + gfs2_holder_uninit(ghs); + return PTR_ERR(inode); + } } } - inode = gfs2_ip2v(ip); - gfs2_inode_put(ip); - - if (!inode) - return -ENOMEM; - d_instantiate(dentry, inode); - if (new) - mark_inode_dirty(inode); return 0; } @@ -115,28 +105,26 @@ static int gfs2_create(struct inode *dir, struct dentry *dentry, static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) { - struct gfs2_inode *dip = get_v2ip(dir), *ip; - struct gfs2_sbd *sdp = dip->i_sbd; struct inode *inode = NULL; - int error; - atomic_inc(&sdp->sd_ops_inode); + dentry->d_op = &gfs2_dops; - if (!sdp->sd_args.ar_localcaching) - dentry->d_op = &gfs2_dops; + inode = gfs2_lookupi(dir, &dentry->d_name, 0); + if (inode && IS_ERR(inode)) + return ERR_CAST(inode); - error = gfs2_lookupi(dip, &dentry->d_name, 0, &ip); - if (!error) { - inode = gfs2_ip2v(ip); - gfs2_inode_put(ip); - if (!inode) - return ERR_PTR(-ENOMEM); - - } else if (error != -ENOENT) - return ERR_PTR(error); - - if (inode) + if (inode) { + struct gfs2_glock *gl = GFS2_I(inode)->i_gl; + struct gfs2_holder gh; + int error; + error = gfs2_glock_nq_init(gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); + if (error) { + iput(inode); + return ERR_PTR(error); + } + gfs2_glock_dq_uninit(&gh); return d_splice_alias(inode, dentry); + } d_add(dentry, inode); return NULL; @@ -157,31 +145,33 @@ static struct dentry *gfs2_lookup(struct inode *dir, struct dentry *dentry, static int gfs2_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry) { - struct gfs2_inode *dip = get_v2ip(dir); - struct gfs2_sbd *sdp = dip->i_sbd; + struct gfs2_inode *dip = GFS2_I(dir); + struct gfs2_sbd *sdp = GFS2_SB(dir); struct inode *inode = old_dentry->d_inode; - struct gfs2_inode *ip = get_v2ip(inode); + struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder ghs[2]; int alloc_required; int error; - atomic_inc(&sdp->sd_ops_inode); - - if (S_ISDIR(ip->i_di.di_mode)) + if (S_ISDIR(inode->i_mode)) return -EPERM; gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); - error = gfs2_glock_nq_m(2, ghs); + error = gfs2_glock_nq(ghs); /* parent */ if (error) - goto out; + goto out_parent; - error = gfs2_repermission(dir, MAY_WRITE | MAY_EXEC, NULL); + error = gfs2_glock_nq(ghs + 1); /* child */ + if (error) + goto out_child; + + error = gfs2_permission(dir, MAY_WRITE | MAY_EXEC); if (error) goto out_gunlock; - error = gfs2_dir_search(dip, &dentry->d_name, NULL, NULL); + error = gfs2_dir_check(dir, &dentry->d_name, NULL); switch (error) { case -ENOENT: break; @@ -192,47 +182,45 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir, } error = -EINVAL; - if (!dip->i_di.di_nlink) + if (!dip->i_inode.i_nlink) goto out_gunlock; error = -EFBIG; - if (dip->i_di.di_entries == (uint32_t)-1) + if (dip->i_entries == (u32)-1) goto out_gunlock; error = -EPERM; if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) goto out_gunlock; error = -EINVAL; - if (!ip->i_di.di_nlink) + if (!ip->i_inode.i_nlink) goto out_gunlock; error = -EMLINK; - if (ip->i_di.di_nlink == (uint32_t)-1) + if (ip->i_inode.i_nlink == (u32)-1) goto out_gunlock; - error = gfs2_diradd_alloc_required(dip, &dentry->d_name, - &alloc_required); - if (error) + alloc_required = error = gfs2_diradd_alloc_required(dir, &dentry->d_name); + if (error < 0) goto out_gunlock; + error = 0; if (alloc_required) { struct gfs2_alloc *al = gfs2_alloc_get(dip); + if (!al) { + error = -ENOMEM; + goto out_gunlock; + } - error = gfs2_quota_lock(dip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); + error = gfs2_quota_lock_check(dip); if (error) goto out_alloc; - error = gfs2_quota_check(dip, dip->i_di.di_uid, - dip->i_di.di_gid); - if (error) - goto out_gunlock_q; - al->al_requested = sdp->sd_max_dirres; error = gfs2_inplace_reserve(dip); if (error) goto out_gunlock_q; - error = gfs2_trans_begin(sdp, - sdp->sd_max_dirres + - al->al_rgd->rd_ri.ri_length + + error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + + al->al_rgd->rd_length + 2 * RES_DINODE + RES_STATFS + RES_QUOTA, 0); if (error) @@ -243,41 +231,35 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir, goto out_ipres; } - error = gfs2_dir_add(dip, &dentry->d_name, &ip->i_num, - IF2DT(ip->i_di.di_mode)); + error = gfs2_dir_add(dir, &dentry->d_name, ip, IF2DT(inode->i_mode)); if (error) goto out_end_trans; error = gfs2_change_nlink(ip, +1); - out_end_trans: +out_end_trans: gfs2_trans_end(sdp); - - out_ipres: +out_ipres: if (alloc_required) gfs2_inplace_release(dip); - - out_gunlock_q: +out_gunlock_q: if (alloc_required) gfs2_quota_unlock(dip); - - out_alloc: +out_alloc: if (alloc_required) gfs2_alloc_put(dip); - - out_gunlock: - gfs2_glock_dq_m(2, ghs); - - out: +out_gunlock: + gfs2_glock_dq(ghs + 1); +out_child: + gfs2_glock_dq(ghs); +out_parent: gfs2_holder_uninit(ghs); gfs2_holder_uninit(ghs + 1); - if (!error) { atomic_inc(&inode->i_count); d_instantiate(dentry, inode); mark_inode_dirty(inode); } - return error; } @@ -293,48 +275,64 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir, static int gfs2_unlink(struct inode *dir, struct dentry *dentry) { - struct gfs2_inode *dip = get_v2ip(dir); - struct gfs2_sbd *sdp = dip->i_sbd; - struct gfs2_inode *ip = get_v2ip(dentry->d_inode); - struct gfs2_unlinked *ul; - struct gfs2_holder ghs[2]; + struct gfs2_inode *dip = GFS2_I(dir); + struct gfs2_sbd *sdp = GFS2_SB(dir); + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); + struct gfs2_holder ghs[3]; + struct gfs2_rgrpd *rgd; + struct gfs2_holder ri_gh; int error; - atomic_inc(&sdp->sd_ops_inode); - - error = gfs2_unlinked_get(sdp, &ul); + error = gfs2_rindex_hold(sdp, &ri_gh); if (error) return error; gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); - gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); + gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); + + rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr); + gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2); - error = gfs2_glock_nq_m(2, ghs); + + error = gfs2_glock_nq(ghs); /* parent */ if (error) - goto out; + goto out_parent; - error = gfs2_unlink_ok(dip, &dentry->d_name, ip); + error = gfs2_glock_nq(ghs + 1); /* child */ if (error) - goto out_gunlock; + goto out_child; - error = gfs2_trans_begin(sdp, 2 * RES_DINODE + RES_LEAF + - RES_UNLINKED, 0); + error = gfs2_glock_nq(ghs + 2); /* rgrp */ + if (error) + goto out_rgrp; + + error = gfs2_unlink_ok(dip, &dentry->d_name, ip); if (error) goto out_gunlock; - error = gfs2_unlinki(dip, &dentry->d_name, ip,ul); + error = gfs2_trans_begin(sdp, 2*RES_DINODE + RES_LEAF + RES_RG_BIT, 0); + if (error) + goto out_rgrp; - gfs2_trans_end(sdp); + error = gfs2_dir_del(dip, &dentry->d_name); + if (error) + goto out_end_trans; - out_gunlock: - gfs2_glock_dq_m(2, ghs); + error = gfs2_change_nlink(ip, -1); - out: - gfs2_holder_uninit(ghs); +out_end_trans: + gfs2_trans_end(sdp); +out_gunlock: + gfs2_glock_dq(ghs + 2); +out_rgrp: + gfs2_holder_uninit(ghs + 2); + gfs2_glock_dq(ghs + 1); +out_child: gfs2_holder_uninit(ghs + 1); - - gfs2_unlinked_put(sdp, ul); - + gfs2_glock_dq(ghs); +out_parent: + gfs2_holder_uninit(ghs); + gfs2_glock_dq_uninit(&ri_gh); return error; } @@ -350,16 +348,14 @@ static int gfs2_unlink(struct inode *dir, struct dentry *dentry) static int gfs2_symlink(struct inode *dir, struct dentry *dentry, const char *symname) { - struct gfs2_inode *dip = get_v2ip(dir), *ip; - struct gfs2_sbd *sdp = dip->i_sbd; + struct gfs2_inode *dip = GFS2_I(dir), *ip; + struct gfs2_sbd *sdp = GFS2_SB(dir); struct gfs2_holder ghs[2]; struct inode *inode; struct buffer_head *dibh; int size; int error; - atomic_inc(&sdp->sd_ops_inode); - /* Must be stuffed with a null terminator for gfs2_follow_link() */ size = strlen(symname); if (size > sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode) - 1) @@ -367,39 +363,33 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry, gfs2_holder_init(dip->i_gl, 0, 0, ghs); - error = gfs2_createi(ghs, &dentry->d_name, S_IFLNK | S_IRWXUGO); - if (error) { + inode = gfs2_createi(ghs, &dentry->d_name, S_IFLNK | S_IRWXUGO, 0); + if (IS_ERR(inode)) { gfs2_holder_uninit(ghs); - return error; + return PTR_ERR(inode); } - ip = get_gl2ip(ghs[1].gh_gl); + ip = ghs[1].gh_gl->gl_object; - ip->i_di.di_size = size; + ip->i_disksize = size; error = gfs2_meta_inode_buffer(ip, &dibh); if (!gfs2_assert_withdraw(sdp, !error)) { - gfs2_dinode_out(&ip->i_di, dibh->b_data); + gfs2_dinode_out(ip, dibh->b_data); memcpy(dibh->b_data + sizeof(struct gfs2_dinode), symname, size); brelse(dibh); } gfs2_trans_end(sdp); - if (dip->i_alloc.al_rgd) + if (dip->i_alloc->al_rgd) gfs2_inplace_release(dip); gfs2_quota_unlock(dip); gfs2_alloc_put(dip); gfs2_glock_dq_uninit_m(2, ghs); - inode = gfs2_ip2v(ip); - gfs2_inode_put(ip); - - if (!inode) - return -ENOMEM; - d_instantiate(dentry, inode); mark_inode_dirty(inode); @@ -417,55 +407,50 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry, static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) { - struct gfs2_inode *dip = get_v2ip(dir), *ip; - struct gfs2_sbd *sdp = dip->i_sbd; + struct gfs2_inode *dip = GFS2_I(dir), *ip; + struct gfs2_sbd *sdp = GFS2_SB(dir); struct gfs2_holder ghs[2]; struct inode *inode; struct buffer_head *dibh; int error; - atomic_inc(&sdp->sd_ops_inode); - gfs2_holder_init(dip->i_gl, 0, 0, ghs); - error = gfs2_createi(ghs, &dentry->d_name, S_IFDIR | mode); - if (error) { + inode = gfs2_createi(ghs, &dentry->d_name, S_IFDIR | mode, 0); + if (IS_ERR(inode)) { gfs2_holder_uninit(ghs); - return error; + return PTR_ERR(inode); } - ip = get_gl2ip(ghs[1].gh_gl); + ip = ghs[1].gh_gl->gl_object; - ip->i_di.di_nlink = 2; - ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); - ip->i_di.di_flags |= GFS2_DIF_JDATA; - ip->i_di.di_payload_format = GFS2_FORMAT_DE; - ip->i_di.di_entries = 2; + ip->i_inode.i_nlink = 2; + ip->i_disksize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode); + ip->i_diskflags |= GFS2_DIF_JDATA; + ip->i_entries = 2; error = gfs2_meta_inode_buffer(ip, &dibh); if (!gfs2_assert_withdraw(sdp, !error)) { struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data; - struct gfs2_dirent *dent; - - gfs2_dirent_alloc(ip, dibh, 1, &dent); + struct gfs2_dirent *dent = (struct gfs2_dirent *)(di+1); + struct qstr str; + gfs2_str2qstr(&str, "."); + gfs2_trans_add_bh(ip->i_gl, dibh, 1); + gfs2_qstr2dirent(&str, GFS2_DIRENT_SIZE(str.len), dent); dent->de_inum = di->di_num; /* already GFS2 endian */ - dent->de_hash = gfs2_disk_hash(".", 1); - dent->de_hash = cpu_to_be32(dent->de_hash); - dent->de_type = DT_DIR; - memcpy((char *) (dent + 1), ".", 1); + dent->de_type = cpu_to_be16(DT_DIR); di->di_entries = cpu_to_be32(1); - gfs2_dirent_alloc(ip, dibh, 2, &dent); + gfs2_str2qstr(&str, ".."); + dent = (struct gfs2_dirent *)((char*)dent + GFS2_DIRENT_SIZE(1)); + gfs2_qstr2dirent(&str, dibh->b_size - GFS2_DIRENT_SIZE(1) - sizeof(struct gfs2_dinode), dent); - gfs2_inum_out(&dip->i_num, (char *) &dent->de_inum); - dent->de_hash = gfs2_disk_hash("..", 2); - dent->de_hash = cpu_to_be32(dent->de_hash); - dent->de_type = DT_DIR; - memcpy((char *) (dent + 1), "..", 2); + gfs2_inum_out(dip, dent); + dent->de_type = cpu_to_be16(DT_DIR); - gfs2_dinode_out(&ip->i_di, (char *)di); + gfs2_dinode_out(ip, di); brelse(dibh); } @@ -474,19 +459,13 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) gfs2_assert_withdraw(sdp, !error); /* dip already pinned */ gfs2_trans_end(sdp); - if (dip->i_alloc.al_rgd) + if (dip->i_alloc->al_rgd) gfs2_inplace_release(dip); gfs2_quota_unlock(dip); gfs2_alloc_put(dip); gfs2_glock_dq_uninit_m(2, ghs); - inode = gfs2_ip2v(ip); - gfs2_inode_put(ip); - - if (!inode) - return -ENOMEM; - d_instantiate(dentry, inode); mark_inode_dirty(inode); @@ -505,59 +484,69 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode) static int gfs2_rmdir(struct inode *dir, struct dentry *dentry) { - struct gfs2_inode *dip = get_v2ip(dir); - struct gfs2_sbd *sdp = dip->i_sbd; - struct gfs2_inode *ip = get_v2ip(dentry->d_inode); - struct gfs2_unlinked *ul; - struct gfs2_holder ghs[2]; + struct gfs2_inode *dip = GFS2_I(dir); + struct gfs2_sbd *sdp = GFS2_SB(dir); + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); + struct gfs2_holder ghs[3]; + struct gfs2_rgrpd *rgd; + struct gfs2_holder ri_gh; int error; - atomic_inc(&sdp->sd_ops_inode); - - error = gfs2_unlinked_get(sdp, &ul); + error = gfs2_rindex_hold(sdp, &ri_gh); if (error) return error; - gfs2_holder_init(dip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); - error = gfs2_glock_nq_m(2, ghs); + rgd = gfs2_blk2rgrpd(sdp, ip->i_no_addr); + gfs2_holder_init(rgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + 2); + + error = gfs2_glock_nq(ghs); /* parent */ if (error) - goto out; + goto out_parent; + + error = gfs2_glock_nq(ghs + 1); /* child */ + if (error) + goto out_child; + + error = gfs2_glock_nq(ghs + 2); /* rgrp */ + if (error) + goto out_rgrp; error = gfs2_unlink_ok(dip, &dentry->d_name, ip); if (error) goto out_gunlock; - if (ip->i_di.di_entries < 2) { + if (ip->i_entries < 2) { if (gfs2_consist_inode(ip)) - gfs2_dinode_print(&ip->i_di); + gfs2_dinode_print(ip); error = -EIO; goto out_gunlock; } - if (ip->i_di.di_entries > 2) { + if (ip->i_entries > 2) { error = -ENOTEMPTY; goto out_gunlock; } - error = gfs2_trans_begin(sdp, 2 * RES_DINODE + 3 * RES_LEAF + - RES_UNLINKED, 0); + error = gfs2_trans_begin(sdp, 2 * RES_DINODE + 3 * RES_LEAF + RES_RG_BIT, 0); if (error) goto out_gunlock; - error = gfs2_rmdiri(dip, &dentry->d_name, ip, ul); + error = gfs2_rmdiri(dip, &dentry->d_name, ip); gfs2_trans_end(sdp); - out_gunlock: - gfs2_glock_dq_m(2, ghs); - - out: - gfs2_holder_uninit(ghs); +out_gunlock: + gfs2_glock_dq(ghs + 2); +out_rgrp: + gfs2_holder_uninit(ghs + 2); + gfs2_glock_dq(ghs + 1); +out_child: gfs2_holder_uninit(ghs + 1); - - gfs2_unlinked_put(sdp, ul); - + gfs2_glock_dq(ghs); +out_parent: + gfs2_holder_uninit(ghs); + gfs2_glock_dq_uninit(&ri_gh); return error; } @@ -573,69 +562,81 @@ static int gfs2_rmdir(struct inode *dir, struct dentry *dentry) static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) { - struct gfs2_inode *dip = get_v2ip(dir), *ip; - struct gfs2_sbd *sdp = dip->i_sbd; + struct gfs2_inode *dip = GFS2_I(dir); + struct gfs2_sbd *sdp = GFS2_SB(dir); struct gfs2_holder ghs[2]; struct inode *inode; - struct buffer_head *dibh; - uint32_t major = 0, minor = 0; - int error; - - atomic_inc(&sdp->sd_ops_inode); - - switch (mode & S_IFMT) { - case S_IFBLK: - case S_IFCHR: - major = MAJOR(dev); - minor = MINOR(dev); - break; - case S_IFIFO: - case S_IFSOCK: - break; - default: - return -EOPNOTSUPP; - }; gfs2_holder_init(dip->i_gl, 0, 0, ghs); - error = gfs2_createi(ghs, &dentry->d_name, mode); - if (error) { + inode = gfs2_createi(ghs, &dentry->d_name, mode, dev); + if (IS_ERR(inode)) { gfs2_holder_uninit(ghs); - return error; - } - - ip = get_gl2ip(ghs[1].gh_gl); - - ip->i_di.di_major = major; - ip->i_di.di_minor = minor; - - error = gfs2_meta_inode_buffer(ip, &dibh); - - if (!gfs2_assert_withdraw(sdp, !error)) { - gfs2_dinode_out(&ip->i_di, dibh->b_data); - brelse(dibh); + return PTR_ERR(inode); } gfs2_trans_end(sdp); - if (dip->i_alloc.al_rgd) + if (dip->i_alloc->al_rgd) gfs2_inplace_release(dip); gfs2_quota_unlock(dip); gfs2_alloc_put(dip); gfs2_glock_dq_uninit_m(2, ghs); - inode = gfs2_ip2v(ip); - gfs2_inode_put(ip); - - if (!inode) - return -ENOMEM; - d_instantiate(dentry, inode); mark_inode_dirty(inode); return 0; } +/* + * gfs2_ok_to_move - check if it's ok to move a directory to another directory + * @this: move this + * @to: to here + * + * Follow @to back to the root and make sure we don't encounter @this + * Assumes we already hold the rename lock. + * + * Returns: errno + */ + +static int gfs2_ok_to_move(struct gfs2_inode *this, struct gfs2_inode *to) +{ + struct inode *dir = &to->i_inode; + struct super_block *sb = dir->i_sb; + struct inode *tmp; + struct qstr dotdot; + int error = 0; + + gfs2_str2qstr(&dotdot, ".."); + + igrab(dir); + + for (;;) { + if (dir == &this->i_inode) { + error = -EINVAL; + break; + } + if (dir == sb->s_root->d_inode) { + error = 0; + break; + } + + tmp = gfs2_lookupi(dir, &dotdot, 1); + if (IS_ERR(tmp)) { + error = PTR_ERR(tmp); + break; + } + + iput(dir); + dir = tmp; + } + + iput(dir); + + return error; +} + /** * gfs2_rename - Rename a file * @odir: Parent directory of old file name @@ -649,58 +650,67 @@ static int gfs2_mknod(struct inode *dir, struct dentry *dentry, int mode, static int gfs2_rename(struct inode *odir, struct dentry *odentry, struct inode *ndir, struct dentry *ndentry) { - struct gfs2_inode *odip = get_v2ip(odir); - struct gfs2_inode *ndip = get_v2ip(ndir); - struct gfs2_inode *ip = get_v2ip(odentry->d_inode); + struct gfs2_inode *odip = GFS2_I(odir); + struct gfs2_inode *ndip = GFS2_I(ndir); + struct gfs2_inode *ip = GFS2_I(odentry->d_inode); struct gfs2_inode *nip = NULL; - struct gfs2_sbd *sdp = odip->i_sbd; - struct gfs2_unlinked *ul; - struct gfs2_holder ghs[4], r_gh; + struct gfs2_sbd *sdp = GFS2_SB(odir); + struct gfs2_holder ghs[5], r_gh = { .gh_gl = NULL, }; + struct gfs2_rgrpd *nrgd; unsigned int num_gh; int dir_rename = 0; int alloc_required; unsigned int x; int error; - atomic_inc(&sdp->sd_ops_inode); - if (ndentry->d_inode) { - nip = get_v2ip(ndentry->d_inode); + nip = GFS2_I(ndentry->d_inode); if (ip == nip) return 0; } - error = gfs2_unlinked_get(sdp, &ul); - if (error) - return error; - - /* Make sure we aren't trying to move a dirctory into it's subdir */ - if (S_ISDIR(ip->i_di.di_mode) && odip != ndip) { - dir_rename = 1; - - error = gfs2_glock_nq_init(sdp->sd_rename_gl, - LM_ST_EXCLUSIVE, 0, - &r_gh); + if (odip != ndip) { + error = gfs2_glock_nq_init(sdp->sd_rename_gl, LM_ST_EXCLUSIVE, + 0, &r_gh); if (error) goto out; - error = gfs2_ok_to_move(ip, ndip); - if (error) - goto out_gunlock_r; + if (S_ISDIR(ip->i_inode.i_mode)) { + dir_rename = 1; + /* don't move a dirctory into it's subdir */ + error = gfs2_ok_to_move(ip, ndip); + if (error) + goto out_gunlock_r; + } } + num_gh = 1; gfs2_holder_init(odip->i_gl, LM_ST_EXCLUSIVE, 0, ghs); - gfs2_holder_init(ndip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 1); - gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + 2); - num_gh = 3; + if (odip != ndip) { + gfs2_holder_init(ndip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh); + num_gh++; + } + gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh); + num_gh++; - if (nip) - gfs2_holder_init(nip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh++); + if (nip) { + gfs2_holder_init(nip->i_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh); + num_gh++; + /* grab the resource lock for unlink flag twiddling + * this is the case of the target file already existing + * so we unlink before doing the rename + */ + nrgd = gfs2_blk2rgrpd(sdp, nip->i_no_addr); + if (nrgd) + gfs2_holder_init(nrgd->rd_gl, LM_ST_EXCLUSIVE, 0, ghs + num_gh++); + } - error = gfs2_glock_nq_m(num_gh, ghs); - if (error) - goto out_uninit; + for (x = 0; x < num_gh; x++) { + error = gfs2_glock_nq(ghs + x); + if (error) + goto out_gunlock; + } /* Check out the old directory */ @@ -715,24 +725,24 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, if (error) goto out_gunlock; - if (S_ISDIR(nip->i_di.di_mode)) { - if (nip->i_di.di_entries < 2) { + if (S_ISDIR(nip->i_inode.i_mode)) { + if (nip->i_entries < 2) { if (gfs2_consist_inode(nip)) - gfs2_dinode_print(&nip->i_di); + gfs2_dinode_print(nip); error = -EIO; goto out_gunlock; } - if (nip->i_di.di_entries > 2) { + if (nip->i_entries > 2) { error = -ENOTEMPTY; goto out_gunlock; } } } else { - error = gfs2_repermission(ndir, MAY_WRITE | MAY_EXEC, NULL); + error = gfs2_permission(ndir, MAY_WRITE | MAY_EXEC); if (error) goto out_gunlock; - error = gfs2_dir_search(ndip, &ndentry->d_name, NULL, NULL); + error = gfs2_dir_check(ndir, &ndentry->d_name, NULL); switch (error) { case -ENOENT: error = 0; @@ -744,16 +754,16 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, }; if (odip != ndip) { - if (!ndip->i_di.di_nlink) { + if (!ndip->i_inode.i_nlink) { error = -EINVAL; goto out_gunlock; } - if (ndip->i_di.di_entries == (uint32_t)-1) { + if (ndip->i_entries == (u32)-1) { error = -EFBIG; goto out_gunlock; } - if (S_ISDIR(ip->i_di.di_mode) && - ndip->i_di.di_nlink == (uint32_t)-1) { + if (S_ISDIR(ip->i_inode.i_mode) && + ndip->i_inode.i_nlink == (u32)-1) { error = -EMLINK; goto out_gunlock; } @@ -763,46 +773,42 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, /* Check out the dir to be renamed */ if (dir_rename) { - error = gfs2_repermission(odentry->d_inode, MAY_WRITE, NULL); + error = gfs2_permission(odentry->d_inode, MAY_WRITE); if (error) goto out_gunlock; } - error = gfs2_diradd_alloc_required(ndip, &ndentry->d_name, - &alloc_required); - if (error) + alloc_required = error = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); + if (error < 0) goto out_gunlock; + error = 0; if (alloc_required) { struct gfs2_alloc *al = gfs2_alloc_get(ndip); + if (!al) { + error = -ENOMEM; + goto out_gunlock; + } - error = gfs2_quota_lock(ndip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); + error = gfs2_quota_lock_check(ndip); if (error) goto out_alloc; - error = gfs2_quota_check(ndip, ndip->i_di.di_uid, - ndip->i_di.di_gid); - if (error) - goto out_gunlock_q; - al->al_requested = sdp->sd_max_dirres; error = gfs2_inplace_reserve(ndip); if (error) goto out_gunlock_q; - error = gfs2_trans_begin(sdp, - sdp->sd_max_dirres + - al->al_rgd->rd_ri.ri_length + + error = gfs2_trans_begin(sdp, sdp->sd_max_dirres + + al->al_rgd->rd_length + 4 * RES_DINODE + 4 * RES_LEAF + - RES_UNLINKED + RES_STATFS + - RES_QUOTA, 0); + RES_STATFS + RES_QUOTA + 4, 0); if (error) goto out_ipreserv; } else { error = gfs2_trans_begin(sdp, 4 * RES_DINODE + - 5 * RES_LEAF + - RES_UNLINKED, 0); + 5 * RES_LEAF + 4, 0); if (error) goto out_gunlock; } @@ -810,18 +816,21 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, /* Remove the target file, if it exists */ if (nip) { - if (S_ISDIR(nip->i_di.di_mode)) - error = gfs2_rmdiri(ndip, &ndentry->d_name, nip, ul); - else - error = gfs2_unlinki(ndip, &ndentry->d_name, nip, ul); + if (S_ISDIR(nip->i_inode.i_mode)) + error = gfs2_rmdiri(ndip, &ndentry->d_name, nip); + else { + error = gfs2_dir_del(ndip, &ndentry->d_name); + if (error) + goto out_end_trans; + error = gfs2_change_nlink(nip, -1); + } if (error) goto out_end_trans; } if (dir_rename) { struct qstr name; - name.len = 2; - name.name = ".."; + gfs2_str2qstr(&name, ".."); error = gfs2_change_nlink(ndip, +1); if (error) @@ -830,7 +839,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, if (error) goto out_end_trans; - error = gfs2_dir_mvino(ip, &name, &ndip->i_num, DT_DIR); + error = gfs2_dir_mvino(ip, &name, ndip, DT_DIR); if (error) goto out_end_trans; } else { @@ -838,9 +847,9 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, error = gfs2_meta_inode_buffer(ip, &dibh); if (error) goto out_end_trans; - ip->i_di.di_ctime = get_seconds(); + ip->i_inode.i_ctime = CURRENT_TIME; gfs2_trans_add_bh(ip->i_gl, dibh, 1); - gfs2_dinode_out(&ip->i_di, dibh->b_data); + gfs2_dinode_out(ip, dibh->b_data); brelse(dibh); } @@ -848,40 +857,30 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, if (error) goto out_end_trans; - error = gfs2_dir_add(ndip, &ndentry->d_name, &ip->i_num, - IF2DT(ip->i_di.di_mode)); + error = gfs2_dir_add(ndir, &ndentry->d_name, ip, IF2DT(ip->i_inode.i_mode)); if (error) goto out_end_trans; - out_end_trans: +out_end_trans: gfs2_trans_end(sdp); - - out_ipreserv: +out_ipreserv: if (alloc_required) gfs2_inplace_release(ndip); - - out_gunlock_q: +out_gunlock_q: if (alloc_required) gfs2_quota_unlock(ndip); - - out_alloc: +out_alloc: if (alloc_required) gfs2_alloc_put(ndip); - - out_gunlock: - gfs2_glock_dq_m(num_gh, ghs); - - out_uninit: - for (x = 0; x < num_gh; x++) +out_gunlock: + while (x--) { + gfs2_glock_dq(ghs + x); gfs2_holder_uninit(ghs + x); - - out_gunlock_r: - if (dir_rename) + } +out_gunlock_r: + if (r_gh.gh_gl) gfs2_glock_dq_uninit(&r_gh); - - out: - gfs2_unlinked_put(sdp, ul); - +out: return error; } @@ -897,13 +896,11 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, static int gfs2_readlink(struct dentry *dentry, char __user *user_buf, int user_size) { - struct gfs2_inode *ip = get_v2ip(dentry->d_inode); + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); char array[GFS2_FAST_NAME_SIZE], *buf = array; unsigned int len = GFS2_FAST_NAME_SIZE; int error; - atomic_inc(&ip->i_sbd->sd_ops_inode); - error = gfs2_readlinki(ip, &buf, &len); if (error) return error; @@ -935,13 +932,11 @@ static int gfs2_readlink(struct dentry *dentry, char __user *user_buf, static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd) { - struct gfs2_inode *ip = get_v2ip(dentry->d_inode); + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); char array[GFS2_FAST_NAME_SIZE], *buf = array; unsigned int len = GFS2_FAST_NAME_SIZE; int error; - atomic_inc(&ip->i_sbd->sd_ops_inode); - error = gfs2_readlinki(ip, &buf, &len); if (!error) { error = vfs_follow_link(nd, buf); @@ -958,59 +953,70 @@ static void *gfs2_follow_link(struct dentry *dentry, struct nameidata *nd) * @mask: * @nd: passed from Linux VFS, ignored by us * + * This may be called from the VFS directly, or from within GFS2 with the + * inode locked, so we look to see if the glock is already locked and only + * lock the glock if its not already been done. + * * Returns: errno */ -static int gfs2_permission(struct inode *inode, int mask, struct nameidata *nd) +int gfs2_permission(struct inode *inode, int mask) { - struct gfs2_inode *ip = get_v2ip(inode); + struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder i_gh; int error; + int unlock = 0; - atomic_inc(&ip->i_sbd->sd_ops_inode); - - if (ip->i_vn == ip->i_gl->gl_vn) - return generic_permission(inode, mask, gfs2_check_acl); + if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) { + error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &i_gh); + if (error) + return error; + unlock = 1; + } - error = gfs2_glock_nq_init(ip->i_gl, - LM_ST_SHARED, LM_FLAG_ANY, - &i_gh); - if (!error) { - error = generic_permission(inode, mask, gfs2_check_acl_locked); + if ((mask & MAY_WRITE) && IS_IMMUTABLE(inode)) + error = -EACCES; + else + error = generic_permission(inode, mask, gfs2_check_acl); + if (unlock) gfs2_glock_dq_uninit(&i_gh); - } return error; } static int setattr_size(struct inode *inode, struct iattr *attr) { - struct gfs2_inode *ip = get_v2ip(inode); + struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_sbd *sdp = GFS2_SB(inode); int error; - if (attr->ia_size != ip->i_di.di_size) { - error = vmtruncate(inode, attr->ia_size); + if (attr->ia_size != ip->i_disksize) { + error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks); if (error) return error; + error = vmtruncate(inode, attr->ia_size); + gfs2_trans_end(sdp); + if (error) + return error; } error = gfs2_truncatei(ip, attr->ia_size); - if (error) - return error; + if (error && (inode->i_size != ip->i_disksize)) + i_size_write(inode, ip->i_disksize); return error; } static int setattr_chown(struct inode *inode, struct iattr *attr) { - struct gfs2_inode *ip = get_v2ip(inode); - struct gfs2_sbd *sdp = ip->i_sbd; + struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_sbd *sdp = GFS2_SB(inode); struct buffer_head *dibh; - uint32_t ouid, ogid, nuid, ngid; + u32 ouid, ogid, nuid, ngid; int error; - ouid = ip->i_di.di_uid; - ogid = ip->i_di.di_gid; + ouid = inode->i_uid; + ogid = inode->i_gid; nuid = attr->ia_uid; ngid = attr->ia_gid; @@ -1019,7 +1025,8 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) if (!(attr->ia_valid & ATTR_GID) || ogid == ngid) ogid = ngid = NO_QUOTA_CHANGE; - gfs2_alloc_get(ip); + if (!gfs2_alloc_get(ip)) + return -ENOMEM; error = gfs2_quota_lock(ip, nuid, ngid); if (error) @@ -1041,28 +1048,23 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) error = inode_setattr(inode, attr); gfs2_assert_warn(sdp, !error); - gfs2_inode_attr_out(ip); gfs2_trans_add_bh(ip->i_gl, dibh, 1); - gfs2_dinode_out(&ip->i_di, dibh->b_data); + gfs2_dinode_out(ip, dibh->b_data); brelse(dibh); if (ouid != NO_QUOTA_CHANGE || ogid != NO_QUOTA_CHANGE) { - gfs2_quota_change(ip, -ip->i_di.di_blocks, - ouid, ogid); - gfs2_quota_change(ip, ip->i_di.di_blocks, - nuid, ngid); + u64 blocks = gfs2_get_inode_blocks(&ip->i_inode); + gfs2_quota_change(ip, -blocks, ouid, ogid); + gfs2_quota_change(ip, blocks, nuid, ngid); } - out_end_trans: +out_end_trans: gfs2_trans_end(sdp); - - out_gunlock_q: +out_gunlock_q: gfs2_quota_unlock(ip); - - out_alloc: +out_alloc: gfs2_alloc_put(ip); - return error; } @@ -1080,12 +1082,10 @@ static int setattr_chown(struct inode *inode, struct iattr *attr) static int gfs2_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; - struct gfs2_inode *ip = get_v2ip(inode); + struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder i_gh; int error; - atomic_inc(&ip->i_sbd->sd_ops_inode); - error = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &i_gh); if (error) return error; @@ -1107,21 +1107,25 @@ static int gfs2_setattr(struct dentry *dentry, struct iattr *attr) else error = gfs2_setattr_simple(ip, attr); - out: +out: gfs2_glock_dq_uninit(&i_gh); - if (!error) mark_inode_dirty(inode); - return error; } /** * gfs2_getattr - Read out an inode's attributes - * @mnt: ? + * @mnt: The vfsmount the inode is being accessed from * @dentry: The dentry to stat * @stat: The inode's stats * + * This may be called from the VFS directly, or from within GFS2 with the + * inode locked, so we look to see if the glock is already locked and only + * lock the glock if its not already been done. Note that its the NFS + * readdirplus operation which causes this to be called (from filldir) + * with the glock already held. + * * Returns: errno */ @@ -1129,29 +1133,31 @@ static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat) { struct inode *inode = dentry->d_inode; - struct gfs2_inode *ip = get_v2ip(inode); + struct gfs2_inode *ip = GFS2_I(inode); struct gfs2_holder gh; int error; + int unlock = 0; - atomic_inc(&ip->i_sbd->sd_ops_inode); + if (gfs2_glock_is_locked_by_me(ip->i_gl) == NULL) { + error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); + if (error) + return error; + unlock = 1; + } - error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh); - if (!error) { - generic_fillattr(inode, stat); + generic_fillattr(inode, stat); + if (unlock) gfs2_glock_dq_uninit(&gh); - } - return error; + return 0; } static int gfs2_setxattr(struct dentry *dentry, const char *name, const void *data, size_t size, int flags) { - struct gfs2_inode *ip = get_v2ip(dentry->d_inode); + struct inode *inode = dentry->d_inode; struct gfs2_ea_request er; - atomic_inc(&ip->i_sbd->sd_ops_inode); - memset(&er, 0, sizeof(struct gfs2_ea_request)); er.er_type = gfs2_ea_name2type(name, &er.er_name); if (er.er_type == GFS2_EATYPE_UNUSED) @@ -1161,9 +1167,9 @@ static int gfs2_setxattr(struct dentry *dentry, const char *name, er.er_data_len = size; er.er_flags = flags; - gfs2_assert_warn(ip->i_sbd, !(er.er_flags & GFS2_ERF_MODE)); + gfs2_assert_warn(GFS2_SB(inode), !(er.er_flags & GFS2_ERF_MODE)); - return gfs2_ea_set(ip, &er); + return gfs2_ea_set(GFS2_I(inode), &er); } static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, @@ -1171,8 +1177,6 @@ static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, { struct gfs2_ea_request er; - atomic_inc(&get_v2sdp(dentry->d_inode->i_sb)->sd_ops_inode); - memset(&er, 0, sizeof(struct gfs2_ea_request)); er.er_type = gfs2_ea_name2type(name, &er.er_name); if (er.er_type == GFS2_EATYPE_UNUSED) @@ -1181,48 +1185,76 @@ static ssize_t gfs2_getxattr(struct dentry *dentry, const char *name, er.er_name_len = strlen(er.er_name); er.er_data_len = size; - return gfs2_ea_get(get_v2ip(dentry->d_inode), &er); + return gfs2_ea_get(GFS2_I(dentry->d_inode), &er); } static ssize_t gfs2_listxattr(struct dentry *dentry, char *buffer, size_t size) { struct gfs2_ea_request er; - atomic_inc(&get_v2sdp(dentry->d_inode->i_sb)->sd_ops_inode); - memset(&er, 0, sizeof(struct gfs2_ea_request)); er.er_data = (size) ? buffer : NULL; er.er_data_len = size; - return gfs2_ea_list(get_v2ip(dentry->d_inode), &er); + return gfs2_ea_list(GFS2_I(dentry->d_inode), &er); } static int gfs2_removexattr(struct dentry *dentry, const char *name) { struct gfs2_ea_request er; - atomic_inc(&get_v2sdp(dentry->d_inode->i_sb)->sd_ops_inode); - memset(&er, 0, sizeof(struct gfs2_ea_request)); er.er_type = gfs2_ea_name2type(name, &er.er_name); if (er.er_type == GFS2_EATYPE_UNUSED) return -EOPNOTSUPP; er.er_name_len = strlen(er.er_name); - return gfs2_ea_remove(get_v2ip(dentry->d_inode), &er); + return gfs2_ea_remove(GFS2_I(dentry->d_inode), &er); } -struct inode_operations gfs2_file_iops = { - .permission = gfs2_permission, - .setattr = gfs2_setattr, - .getattr = gfs2_getattr, - .setxattr = gfs2_setxattr, - .getxattr = gfs2_getxattr, - .listxattr = gfs2_listxattr, - .removexattr = gfs2_removexattr, -}; +static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + u64 start, u64 len) +{ + struct gfs2_inode *ip = GFS2_I(inode); + struct gfs2_holder gh; + int ret; + + ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC); + if (ret) + return ret; + + mutex_lock(&inode->i_mutex); + + ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh); + if (ret) + goto out; + + if (gfs2_is_stuffed(ip)) { + u64 phys = ip->i_no_addr << inode->i_blkbits; + u64 size = i_size_read(inode); + u32 flags = FIEMAP_EXTENT_LAST|FIEMAP_EXTENT_NOT_ALIGNED| + FIEMAP_EXTENT_DATA_INLINE; + phys += sizeof(struct gfs2_dinode); + phys += start; + if (start + len > size) + len = size - start; + if (start < size) + ret = fiemap_fill_next_extent(fieinfo, start, phys, + len, flags); + if (ret == 1) + ret = 0; + } else { + ret = __generic_block_fiemap(inode, fieinfo, start, len, + gfs2_block_map); + } + + gfs2_glock_dq_uninit(&gh); +out: + mutex_unlock(&inode->i_mutex); + return ret; +} -struct inode_operations gfs2_dev_iops = { +const struct inode_operations gfs2_file_iops = { .permission = gfs2_permission, .setattr = gfs2_setattr, .getattr = gfs2_getattr, @@ -1230,9 +1262,10 @@ struct inode_operations gfs2_dev_iops = { .getxattr = gfs2_getxattr, .listxattr = gfs2_listxattr, .removexattr = gfs2_removexattr, + .fiemap = gfs2_fiemap, }; -struct inode_operations gfs2_dir_iops = { +const struct inode_operations gfs2_dir_iops = { .create = gfs2_create, .lookup = gfs2_lookup, .link = gfs2_link, @@ -1249,9 +1282,10 @@ struct inode_operations gfs2_dir_iops = { .getxattr = gfs2_getxattr, .listxattr = gfs2_listxattr, .removexattr = gfs2_removexattr, + .fiemap = gfs2_fiemap, }; -struct inode_operations gfs2_symlink_iops = { +const struct inode_operations gfs2_symlink_iops = { .readlink = gfs2_readlink, .follow_link = gfs2_follow_link, .permission = gfs2_permission, @@ -1261,5 +1295,6 @@ struct inode_operations gfs2_symlink_iops = { .getxattr = gfs2_getxattr, .listxattr = gfs2_listxattr, .removexattr = gfs2_removexattr, + .fiemap = gfs2_fiemap, };