/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2007 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 <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
-#include <asm/semaphore.h>
+#include <linux/crc32.h>
+#include <linux/gfs2_ondisk.h>
+#include <linux/bio.h>
#include "gfs2.h"
+#include "incore.h"
#include "bmap.h"
#include "dir.h"
-#include "format.h"
#include "glock.h"
#include "glops.h"
#include "inode.h"
#include "rgrp.h"
#include "super.h"
#include "trans.h"
-#include "unlinked.h"
-
-/**
- * gfs2_tune_init - Fill a gfs2_tune structure with default values
- * @gt: tune
- *
- */
-
-void gfs2_tune_init(struct gfs2_tune *gt)
-{
- spin_lock_init(>->gt_spin);
-
- gt->gt_ilimit = 100;
- gt->gt_ilimit_tries = 3;
- gt->gt_ilimit_min = 1;
- gt->gt_demote_secs = 300;
- gt->gt_incore_log_blocks = 1024;
- gt->gt_log_flush_secs = 60;
- gt->gt_jindex_refresh_secs = 60;
- gt->gt_scand_secs = 15;
- gt->gt_recoverd_secs = 60;
- gt->gt_logd_secs = 1;
- gt->gt_quotad_secs = 5;
- gt->gt_inoded_secs = 15;
- gt->gt_quota_simul_sync = 64;
- gt->gt_quota_warn_period = 10;
- gt->gt_quota_scale_num = 1;
- gt->gt_quota_scale_den = 1;
- gt->gt_quota_cache_secs = 300;
- gt->gt_quota_quantum = 60;
- gt->gt_atime_quantum = 3600;
- gt->gt_new_files_jdata = 0;
- gt->gt_new_files_directio = 0;
- gt->gt_max_atomic_write = 4 << 20;
- gt->gt_max_readahead = 1 << 18;
- gt->gt_lockdump_size = 131072;
- gt->gt_stall_secs = 600;
- gt->gt_complain_secs = 10;
- gt->gt_reclaim_limit = 5000;
- gt->gt_entries_per_readdir = 32;
- gt->gt_prefetch_secs = 10;
- gt->gt_greedy_default = HZ / 10;
- gt->gt_greedy_quantum = HZ / 40;
- gt->gt_greedy_max = HZ / 4;
- gt->gt_statfs_quantum = 30;
- gt->gt_statfs_slow = 0;
-}
-
-/**
- * gfs2_check_sb - Check superblock
- * @sdp: the filesystem
- * @sb: The superblock
- * @silent: Don't print a message if the check fails
- *
- * Checks the version code of the FS is one that we understand how to
- * read and that the sizes of the various on-disk structures have not
- * changed.
- */
-
-int gfs2_check_sb(struct gfs2_sbd *sdp, struct gfs2_sb *sb, int silent)
-{
- unsigned int x;
-
- if (sb->sb_header.mh_magic != GFS2_MAGIC ||
- sb->sb_header.mh_type != GFS2_METATYPE_SB) {
- if (!silent)
- printk(KERN_WARNING "GFS2: not a GFS2 filesystem\n");
- return -EINVAL;
- }
-
- /* If format numbers match exactly, we're done. */
-
- if (sb->sb_fs_format == GFS2_FORMAT_FS &&
- sb->sb_multihost_format == GFS2_FORMAT_MULTI)
- return 0;
-
- if (sb->sb_fs_format != GFS2_FORMAT_FS) {
- for (x = 0; gfs2_old_fs_formats[x]; x++)
- if (gfs2_old_fs_formats[x] == sb->sb_fs_format)
- break;
-
- if (!gfs2_old_fs_formats[x]) {
- printk(KERN_WARNING
- "GFS2: code version (%u, %u) is incompatible "
- "with ondisk format (%u, %u)\n",
- GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
- sb->sb_fs_format, sb->sb_multihost_format);
- printk(KERN_WARNING
- "GFS2: I don't know how to upgrade this FS\n");
- return -EINVAL;
- }
- }
-
- if (sb->sb_multihost_format != GFS2_FORMAT_MULTI) {
- for (x = 0; gfs2_old_multihost_formats[x]; x++)
- if (gfs2_old_multihost_formats[x] ==
- sb->sb_multihost_format)
- break;
-
- if (!gfs2_old_multihost_formats[x]) {
- printk(KERN_WARNING
- "GFS2: code version (%u, %u) is incompatible "
- "with ondisk format (%u, %u)\n",
- GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
- sb->sb_fs_format, sb->sb_multihost_format);
- printk(KERN_WARNING
- "GFS2: I don't know how to upgrade this FS\n");
- return -EINVAL;
- }
- }
-
- if (!sdp->sd_args.ar_upgrade) {
- printk(KERN_WARNING
- "GFS2: code version (%u, %u) is incompatible "
- "with ondisk format (%u, %u)\n",
- GFS2_FORMAT_FS, GFS2_FORMAT_MULTI,
- sb->sb_fs_format, sb->sb_multihost_format);
- printk(KERN_INFO
- "GFS2: Use the \"upgrade\" mount option to upgrade "
- "the FS\n");
- printk(KERN_INFO "GFS2: See the manual for more details\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-/**
- * gfs2_read_sb - Read super block
- * @sdp: The GFS2 superblock
- * @gl: the glock for the superblock (assumed to be held)
- * @silent: Don't print message if mount fails
- *
- */
-
-int gfs2_read_sb(struct gfs2_sbd *sdp, struct gfs2_glock *gl, int silent)
-{
- struct buffer_head *bh;
- uint32_t hash_blocks, ind_blocks, leaf_blocks;
- uint32_t tmp_blocks;
- unsigned int x;
- int error;
-
- error = gfs2_meta_read(gl, GFS2_SB_ADDR >> sdp->sd_fsb2bb_shift,
- DIO_FORCE | DIO_START | DIO_WAIT, &bh);
- if (error) {
- if (!silent)
- fs_err(sdp, "can't read superblock\n");
- return error;
- }
-
- gfs2_assert(sdp, sizeof(struct gfs2_sb) <= bh->b_size);
- gfs2_sb_in(&sdp->sd_sb, bh->b_data);
- brelse(bh);
-
- error = gfs2_check_sb(sdp, &sdp->sd_sb, silent);
- if (error)
- return error;
-
- sdp->sd_fsb2bb_shift = sdp->sd_sb.sb_bsize_shift -
- GFS2_BASIC_BLOCK_SHIFT;
- sdp->sd_fsb2bb = 1 << sdp->sd_fsb2bb_shift;
- sdp->sd_diptrs = (sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_dinode)) / sizeof(uint64_t);
- sdp->sd_inptrs = (sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_meta_header)) / sizeof(uint64_t);
- sdp->sd_jbsize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header);
- sdp->sd_hash_bsize = sdp->sd_sb.sb_bsize / 2;
- sdp->sd_hash_bsize_shift = sdp->sd_sb.sb_bsize_shift - 1;
- sdp->sd_hash_ptrs = sdp->sd_hash_bsize / sizeof(uint64_t);
- sdp->sd_ut_per_block = (sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_meta_header)) /
- sizeof(struct gfs2_unlinked_tag);
- sdp->sd_qc_per_block = (sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_meta_header)) /
- sizeof(struct gfs2_quota_change);
-
- /* Compute maximum reservation required to add a entry to a directory */
-
- hash_blocks = DIV_RU(sizeof(uint64_t) * (1 << GFS2_DIR_MAX_DEPTH),
- sdp->sd_jbsize);
-
- ind_blocks = 0;
- for (tmp_blocks = hash_blocks; tmp_blocks > sdp->sd_diptrs;) {
- tmp_blocks = DIV_RU(tmp_blocks, sdp->sd_inptrs);
- ind_blocks += tmp_blocks;
- }
-
- leaf_blocks = 2 + GFS2_DIR_MAX_DEPTH;
-
- sdp->sd_max_dirres = hash_blocks + ind_blocks + leaf_blocks;
-
- sdp->sd_heightsize[0] = sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_dinode);
- sdp->sd_heightsize[1] = sdp->sd_sb.sb_bsize * sdp->sd_diptrs;
- for (x = 2;; x++) {
- uint64_t space, d;
- uint32_t m;
-
- space = sdp->sd_heightsize[x - 1] * sdp->sd_inptrs;
- d = space;
- m = do_div(d, sdp->sd_inptrs);
-
- if (d != sdp->sd_heightsize[x - 1] || m)
- break;
- sdp->sd_heightsize[x] = space;
- }
- sdp->sd_max_height = x;
- gfs2_assert(sdp, sdp->sd_max_height <= GFS2_MAX_META_HEIGHT);
-
- sdp->sd_jheightsize[0] = sdp->sd_sb.sb_bsize -
- sizeof(struct gfs2_dinode);
- sdp->sd_jheightsize[1] = sdp->sd_jbsize * sdp->sd_diptrs;
- for (x = 2;; x++) {
- uint64_t space, d;
- uint32_t m;
-
- space = sdp->sd_jheightsize[x - 1] * sdp->sd_inptrs;
- d = space;
- m = do_div(d, sdp->sd_inptrs);
-
- if (d != sdp->sd_jheightsize[x - 1] || m)
- break;
- sdp->sd_jheightsize[x] = space;
- }
- sdp->sd_max_jheight = x;
- gfs2_assert(sdp, sdp->sd_max_jheight <= GFS2_MAX_META_HEIGHT);
-
- return 0;
-}
-
-int gfs2_do_upgrade(struct gfs2_sbd *sdp, struct gfs2_glock *sb_gl)
-{
- return 0;
-}
-
-/**
- * gfs2_jindex_hold - Grab a lock on the jindex
- * @sdp: The GFS2 superblock
- * @ji_gh: the holder for the jindex glock
- *
- * This is very similar to the gfs2_rindex_hold() function, except that
- * in general we hold the jindex lock for longer periods of time and
- * we grab it far less frequently (in general) then the rgrp lock.
- *
- * Returns: errno
- */
-
-int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
-{
- struct gfs2_inode *dip = get_v2ip(sdp->sd_jindex);
- struct qstr name;
- char buf[20];
- struct gfs2_jdesc *jd;
- int error;
-
- name.name = buf;
-
- mutex_lock(&sdp->sd_jindex_mutex);
-
- for (;;) {
- error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL, ji_gh);
- if (error)
- break;
-
- name.len = sprintf(buf, "journal%u", sdp->sd_journals);
-
- error = gfs2_dir_search(get_v2ip(sdp->sd_jindex),
- &name, NULL, NULL);
- if (error == -ENOENT) {
- error = 0;
- break;
- }
-
- gfs2_glock_dq_uninit(ji_gh);
-
- if (error)
- break;
-
- error = -ENOMEM;
- jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
- if (!jd)
- break;
-
- error = gfs2_lookupi(sdp->sd_jindex, &name, 1, &jd->jd_inode);
- if (error) {
- kfree(jd);
- break;
- }
-
- spin_lock(&sdp->sd_jindex_spin);
- jd->jd_jid = sdp->sd_journals++;
- list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
- spin_unlock(&sdp->sd_jindex_spin);
- }
-
- mutex_unlock(&sdp->sd_jindex_mutex);
-
- return error;
-}
+#include "util.h"
/**
* gfs2_jindex_free - Clear all the journal index information
void gfs2_jindex_free(struct gfs2_sbd *sdp)
{
- struct list_head list;
+ struct list_head list, *head;
struct gfs2_jdesc *jd;
+ struct gfs2_journal_extent *jext;
spin_lock(&sdp->sd_jindex_spin);
list_add(&list, &sdp->sd_jindex_list);
while (!list_empty(&list)) {
jd = list_entry(list.next, struct gfs2_jdesc, jd_list);
+ head = &jd->extent_list;
+ while (!list_empty(head)) {
+ jext = list_entry(head->next,
+ struct gfs2_journal_extent,
+ extent_list);
+ list_del(&jext->extent_list);
+ kfree(jext);
+ }
list_del(&jd->jd_list);
iput(jd->jd_inode);
kfree(jd);
return jd;
}
-void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
-{
- struct gfs2_jdesc *jd;
-
- spin_lock(&sdp->sd_jindex_spin);
- jd = jdesc_find_i(&sdp->sd_jindex_list, jid);
- if (jd)
- jd->jd_dirty = 1;
- spin_unlock(&sdp->sd_jindex_spin);
-}
-
-struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
-{
- struct gfs2_jdesc *jd;
- int found = 0;
-
- spin_lock(&sdp->sd_jindex_spin);
-
- list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
- if (jd->jd_dirty) {
- jd->jd_dirty = 0;
- found = 1;
- break;
- }
- }
- spin_unlock(&sdp->sd_jindex_spin);
-
- if (!found)
- jd = NULL;
-
- return jd;
-}
-
int gfs2_jdesc_check(struct gfs2_jdesc *jd)
{
- struct gfs2_inode *ip = get_v2ip(jd->jd_inode);
- struct gfs2_sbd *sdp = ip->i_sbd;
+ struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
+ struct gfs2_sbd *sdp = GFS2_SB(jd->jd_inode);
int ar;
int error;
- if (ip->i_di.di_size < (8 << 20) ||
- ip->i_di.di_size > (1 << 30) ||
- (ip->i_di.di_size & (sdp->sd_sb.sb_bsize - 1))) {
+ if (ip->i_disksize < (8 << 20) || ip->i_disksize > (1 << 30) ||
+ (ip->i_disksize & (sdp->sd_sb.sb_bsize - 1))) {
gfs2_consist_inode(ip);
return -EIO;
}
- jd->jd_blocks = ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift;
+ jd->jd_blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
- error = gfs2_write_alloc_required(ip,
- 0, ip->i_di.di_size,
- &ar);
+ error = gfs2_write_alloc_required(ip, 0, ip->i_disksize, &ar);
if (!error && ar) {
gfs2_consist_inode(ip);
error = -EIO;
return error;
}
-int gfs2_lookup_master_dir(struct gfs2_sbd *sdp)
-{
- struct inode *inode = NULL;
- struct gfs2_glock *gl;
- int error;
-
- error = gfs2_glock_get(sdp,
- sdp->sd_sb.sb_master_dir.no_addr,
- &gfs2_inode_glops, CREATE, &gl);
- if (!error) {
- error = gfs2_lookup_simple(sdp->sd_root_dir, ".gfs2_admin",
- &inode);
- sdp->sd_master_dir = inode;
- gfs2_glock_put(gl);
- }
-
- return error;
-}
-
/**
* gfs2_make_fs_rw - Turn a Read-Only FS into a Read-Write one
* @sdp: the filesystem
int gfs2_make_fs_rw(struct gfs2_sbd *sdp)
{
- struct gfs2_glock *j_gl = get_v2ip(sdp->sd_jdesc->jd_inode)->i_gl;
+ struct gfs2_inode *ip = GFS2_I(sdp->sd_jdesc->jd_inode);
+ struct gfs2_glock *j_gl = ip->i_gl;
struct gfs2_holder t_gh;
- struct gfs2_log_header head;
+ struct gfs2_log_header_host head;
int error;
- error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL | GL_NEVER_RECURSE, &t_gh);
+ error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED, 0, &t_gh);
if (error)
return error;
- gfs2_meta_cache_flush(get_v2ip(sdp->sd_jdesc->jd_inode));
- j_gl->gl_ops->go_inval(j_gl, DIO_METADATA | DIO_DATA);
+ j_gl->gl_ops->go_inval(j_gl, DIO_METADATA);
error = gfs2_find_jhead(sdp->sd_jdesc, &head);
if (error)
sdp->sd_log_sequence = head.lh_sequence + 1;
gfs2_log_pointers_init(sdp, head.lh_blkno);
- error = gfs2_unlinked_init(sdp);
- if (error)
- goto fail;
error = gfs2_quota_init(sdp);
if (error)
- goto fail_unlinked;
+ goto fail;
set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
return 0;
- fail_unlinked:
- gfs2_unlinked_cleanup(sdp);
-
- fail:
+fail:
t_gh.gh_flags |= GL_NOCACHE;
gfs2_glock_dq_uninit(&t_gh);
return error;
}
-/**
- * gfs2_make_fs_ro - Turn a Read-Write FS into a Read-Only one
- * @sdp: the filesystem
- *
- * Returns: errno
- */
-
-int gfs2_make_fs_ro(struct gfs2_sbd *sdp)
+static void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf)
{
- struct gfs2_holder t_gh;
- int error;
-
- gfs2_unlinked_dealloc(sdp);
- gfs2_quota_sync(sdp);
- gfs2_statfs_sync(sdp);
-
- error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_SHARED,
- GL_LOCAL_EXCL | GL_NEVER_RECURSE | GL_NOCACHE,
- &t_gh);
- if (error && !test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
- return error;
+ const struct gfs2_statfs_change *str = buf;
- gfs2_meta_syncfs(sdp);
- gfs2_log_shutdown(sdp);
-
- clear_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags);
-
- if (t_gh.gh_gl)
- gfs2_glock_dq_uninit(&t_gh);
+ sc->sc_total = be64_to_cpu(str->sc_total);
+ sc->sc_free = be64_to_cpu(str->sc_free);
+ sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
+}
- gfs2_unlinked_cleanup(sdp);
- gfs2_quota_cleanup(sdp);
+static void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf)
+{
+ struct gfs2_statfs_change *str = buf;
- return error;
+ str->sc_total = cpu_to_be64(sc->sc_total);
+ str->sc_free = cpu_to_be64(sc->sc_free);
+ str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
}
int gfs2_statfs_init(struct gfs2_sbd *sdp)
{
- struct gfs2_inode *m_ip = get_v2ip(sdp->sd_statfs_inode);
- struct gfs2_statfs_change *m_sc = &sdp->sd_statfs_master;
- struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
- struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
+ struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
+ struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
+ struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);
+ struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
struct buffer_head *m_bh, *l_bh;
struct gfs2_holder gh;
int error;
brelse(l_bh);
}
- out_m_bh:
+out_m_bh:
brelse(m_bh);
-
- out:
+out:
gfs2_glock_dq_uninit(&gh);
-
return 0;
}
-void gfs2_statfs_change(struct gfs2_sbd *sdp, int64_t total, int64_t free,
- int64_t dinodes)
+void gfs2_statfs_change(struct gfs2_sbd *sdp, s64 total, s64 free,
+ s64 dinodes)
{
- struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
- struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
+ struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);
+ struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
struct buffer_head *l_bh;
int error;
if (error)
return;
- mutex_lock(&sdp->sd_statfs_mutex);
gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
- mutex_unlock(&sdp->sd_statfs_mutex);
spin_lock(&sdp->sd_statfs_spin);
l_sc->sc_total += total;
l_sc->sc_free += free;
l_sc->sc_dinodes += dinodes;
- gfs2_statfs_change_out(l_sc, l_bh->b_data +
- sizeof(struct gfs2_dinode));
+ gfs2_statfs_change_out(l_sc, l_bh->b_data + sizeof(struct gfs2_dinode));
spin_unlock(&sdp->sd_statfs_spin);
brelse(l_bh);
int gfs2_statfs_sync(struct gfs2_sbd *sdp)
{
- struct gfs2_inode *m_ip = get_v2ip(sdp->sd_statfs_inode);
- struct gfs2_inode *l_ip = get_v2ip(sdp->sd_sc_inode);
- struct gfs2_statfs_change *m_sc = &sdp->sd_statfs_master;
- struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
+ struct gfs2_inode *m_ip = GFS2_I(sdp->sd_statfs_inode);
+ struct gfs2_inode *l_ip = GFS2_I(sdp->sd_sc_inode);
+ struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
+ struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
struct gfs2_holder gh;
struct buffer_head *m_bh, *l_bh;
int error;
spin_lock(&sdp->sd_statfs_spin);
gfs2_statfs_change_in(m_sc, m_bh->b_data +
- sizeof(struct gfs2_dinode));
+ sizeof(struct gfs2_dinode));
if (!l_sc->sc_total && !l_sc->sc_free && !l_sc->sc_dinodes) {
spin_unlock(&sdp->sd_statfs_spin);
goto out_bh;
if (error)
goto out_bh2;
- mutex_lock(&sdp->sd_statfs_mutex);
gfs2_trans_add_bh(l_ip->i_gl, l_bh, 1);
- mutex_unlock(&sdp->sd_statfs_mutex);
spin_lock(&sdp->sd_statfs_spin);
m_sc->sc_total += l_sc->sc_total;
gfs2_trans_end(sdp);
- out_bh2:
+out_bh2:
brelse(l_bh);
-
- out_bh:
+out_bh:
brelse(m_bh);
-
- out:
+out:
gfs2_glock_dq_uninit(&gh);
-
- return error;
-}
-
-/**
- * gfs2_statfs_i - Do a statfs
- * @sdp: the filesystem
- * @sg: the sg structure
- *
- * Returns: errno
- */
-
-int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change *sc)
-{
- struct gfs2_statfs_change *m_sc = &sdp->sd_statfs_master;
- struct gfs2_statfs_change *l_sc = &sdp->sd_statfs_local;
-
- spin_lock(&sdp->sd_statfs_spin);
-
- *sc = *m_sc;
- sc->sc_total += l_sc->sc_total;
- sc->sc_free += l_sc->sc_free;
- sc->sc_dinodes += l_sc->sc_dinodes;
-
- spin_unlock(&sdp->sd_statfs_spin);
-
- if (sc->sc_free < 0)
- sc->sc_free = 0;
- if (sc->sc_free > sc->sc_total)
- sc->sc_free = sc->sc_total;
- if (sc->sc_dinodes < 0)
- sc->sc_dinodes = 0;
-
- return 0;
-}
-
-/**
- * statfs_fill - fill in the sg for a given RG
- * @rgd: the RG
- * @sc: the sc structure
- *
- * Returns: 0 on success, -ESTALE if the LVB is invalid
- */
-
-static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
- struct gfs2_statfs_change *sc)
-{
- gfs2_rgrp_verify(rgd);
- sc->sc_total += rgd->rd_ri.ri_data;
- sc->sc_free += rgd->rd_rg.rg_free;
- sc->sc_dinodes += rgd->rd_rg.rg_dinodes;
- return 0;
-}
-
-/**
- * gfs2_statfs_slow - Stat a filesystem using asynchronous locking
- * @sdp: the filesystem
- * @sc: the sc info that will be returned
- *
- * Any error (other than a signal) will cause this routine to fall back
- * to the synchronous version.
- *
- * FIXME: This really shouldn't busy wait like this.
- *
- * Returns: errno
- */
-
-int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change *sc)
-{
- struct gfs2_holder ri_gh;
- struct gfs2_rgrpd *rgd_next;
- struct gfs2_holder *gha, *gh;
- unsigned int slots = 64;
- unsigned int x;
- int done;
- int error = 0, err;
-
- memset(sc, 0, sizeof(struct gfs2_statfs_change));
- gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
- if (!gha)
- return -ENOMEM;
-
- error = gfs2_rindex_hold(sdp, &ri_gh);
- if (error)
- goto out;
-
- rgd_next = gfs2_rgrpd_get_first(sdp);
-
- for (;;) {
- done = 1;
-
- for (x = 0; x < slots; x++) {
- gh = gha + x;
-
- if (gh->gh_gl && gfs2_glock_poll(gh)) {
- err = gfs2_glock_wait(gh);
- if (err) {
- gfs2_holder_uninit(gh);
- error = err;
- } else {
- if (!error)
- error = statfs_slow_fill(get_gl2rgd(gh->gh_gl), sc);
- gfs2_glock_dq_uninit(gh);
- }
- }
-
- if (gh->gh_gl)
- done = 0;
- else if (rgd_next && !error) {
- error = gfs2_glock_nq_init(rgd_next->rd_gl,
- LM_ST_SHARED,
- GL_ASYNC,
- gh);
- rgd_next = gfs2_rgrpd_get_next(rgd_next);
- done = 0;
- }
-
- if (signal_pending(current))
- error = -ERESTARTSYS;
- }
-
- if (done)
- break;
-
- yield();
- }
-
- gfs2_glock_dq_uninit(&ri_gh);
-
- out:
- kfree(gha);
-
return error;
}
* Returns: errno
*/
-int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp, struct gfs2_holder *t_gh)
+static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp,
+ struct gfs2_holder *t_gh)
{
- struct gfs2_holder ji_gh;
+ struct gfs2_inode *ip;
struct gfs2_jdesc *jd;
struct lfcc *lfcc;
LIST_HEAD(list);
- struct gfs2_log_header lh;
+ struct gfs2_log_header_host lh;
int error;
- error = gfs2_jindex_hold(sdp, &ji_gh);
- if (error)
- return error;
-
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
lfcc = kmalloc(sizeof(struct lfcc), GFP_KERNEL);
if (!lfcc) {
error = -ENOMEM;
goto out;
}
- error = gfs2_glock_nq_init(get_v2ip(jd->jd_inode)->i_gl,
- LM_ST_SHARED, 0,
- &lfcc->gh);
+ ip = GFS2_I(jd->jd_inode);
+ error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &lfcc->gh);
if (error) {
kfree(lfcc);
goto out;
}
error = gfs2_glock_nq_init(sdp->sd_trans_gl, LM_ST_DEFERRED,
- LM_FLAG_PRIORITY | GL_NEVER_RECURSE | GL_NOCACHE,
- t_gh);
+ GL_NOCACHE, t_gh);
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
error = gfs2_jdesc_check(jd);
if (error)
gfs2_glock_dq_uninit(t_gh);
- out:
+out:
while (!list_empty(&list)) {
lfcc = list_entry(list.next, struct lfcc, list);
list_del(&lfcc->list);
gfs2_glock_dq_uninit(&lfcc->gh);
kfree(lfcc);
}
- gfs2_glock_dq_uninit(&ji_gh);
-
return error;
}