/*
* 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
#include <linux/writeback.h>
#include <linux/swap.h>
#include <linux/delay.h>
-#include <asm/semaphore.h>
+#include <linux/gfs2_ondisk.h>
#include "gfs2.h"
+#include "lm_interface.h"
+#include "incore.h"
#include "glock.h"
#include "glops.h"
#include "inode.h"
#include "meta_io.h"
#include "rgrp.h"
#include "trans.h"
+#include "util.h"
+#include "ops_address.h"
#define buffer_busy(bh) \
((bh)->b_state & ((1ul << BH_Dirty) | (1ul << BH_Lock) | (1ul << BH_Pinned)))
static int aspace_get_block(struct inode *inode, sector_t lblock,
struct buffer_head *bh_result, int create)
{
- gfs2_assert_warn(get_v2sdp(inode->i_sb), 0);
+ gfs2_assert_warn(inode->i_sb->s_fs_info, 0);
return -EOPNOTSUPP;
}
return block_write_full_page(page, aspace_get_block, wbc);
}
-/**
- * stuck_releasepage - We're stuck in gfs2_releasepage(). Print stuff out.
- * @bh: the buffer we're stuck on
- *
- */
-
-static void stuck_releasepage(struct buffer_head *bh)
-{
- struct gfs2_sbd *sdp = get_v2sdp(bh->b_page->mapping->host->i_sb);
- struct gfs2_bufdata *bd = get_v2bd(bh);
- struct gfs2_glock *gl;
-
- fs_warn(sdp, "stuck in gfs2_releasepage()\n");
- fs_warn(sdp, "blkno = %llu, bh->b_count = %d\n",
- (uint64_t)bh->b_blocknr, atomic_read(&bh->b_count));
- fs_warn(sdp, "pinned = %u\n", buffer_pinned(bh));
- fs_warn(sdp, "get_v2bd(bh) = %s\n", (bd) ? "!NULL" : "NULL");
-
- if (!bd)
- return;
-
- gl = bd->bd_gl;
-
- fs_warn(sdp, "gl = (%u, %llu)\n",
- gl->gl_name.ln_type, gl->gl_name.ln_number);
-
- fs_warn(sdp, "bd_list_tr = %s, bd_le.le_list = %s\n",
- (list_empty(&bd->bd_list_tr)) ? "no" : "yes",
- (list_empty(&bd->bd_le.le_list)) ? "no" : "yes");
-
- if (gl->gl_ops == &gfs2_inode_glops) {
- struct gfs2_inode *ip = get_gl2ip(gl);
- unsigned int x;
-
- if (!ip)
- return;
-
- fs_warn(sdp, "ip = %llu %llu\n",
- ip->i_num.no_formal_ino, ip->i_num.no_addr);
- fs_warn(sdp, "ip->i_count = %d, ip->i_vnode = %s\n",
- atomic_read(&ip->i_count),
- (ip->i_vnode) ? "!NULL" : "NULL");
-
- for (x = 0; x < GFS2_MAX_META_HEIGHT; x++)
- fs_warn(sdp, "ip->i_cache[%u] = %s\n",
- x, (ip->i_cache[x]) ? "!NULL" : "NULL");
- }
-}
-
-/**
- * gfs2_aspace_releasepage - free the metadata associated with a page
- * @page: the page that's being released
- * @gfp_mask: passed from Linux VFS, ignored by us
- *
- * Call try_to_free_buffers() if the buffers in this page can be
- * released.
- *
- * Returns: 0
- */
-
-static int gfs2_aspace_releasepage(struct page *page, gfp_t gfp_mask)
-{
- struct inode *aspace = page->mapping->host;
- struct gfs2_sbd *sdp = get_v2sdp(aspace->i_sb);
- struct buffer_head *bh, *head;
- struct gfs2_bufdata *bd;
- unsigned long t;
-
- if (!page_has_buffers(page))
- goto out;
-
- head = bh = page_buffers(page);
- do {
- t = jiffies;
-
- while (atomic_read(&bh->b_count)) {
- if (atomic_read(&aspace->i_writecount)) {
- if (time_after_eq(jiffies, t +
- gfs2_tune_get(sdp, gt_stall_secs) * HZ)) {
- stuck_releasepage(bh);
- t = jiffies;
- }
-
- yield();
- continue;
- }
-
- return 0;
- }
-
- gfs2_assert_warn(sdp, !buffer_pinned(bh));
-
- bd = get_v2bd(bh);
- if (bd) {
- gfs2_assert_warn(sdp, bd->bd_bh == bh);
- gfs2_assert_warn(sdp, list_empty(&bd->bd_list_tr));
- gfs2_assert_warn(sdp, list_empty(&bd->bd_le.le_list));
- gfs2_assert_warn(sdp, !bd->bd_ail);
- kmem_cache_free(gfs2_bufdata_cachep, bd);
- atomic_dec(&sdp->sd_bufdata_count);
- set_v2bd(bh, NULL);
- }
-
- bh = bh->b_this_page;
- }
- while (bh != head);
-
- out:
- return try_to_free_buffers(page);
-}
-
-static struct address_space_operations aspace_aops = {
+static const struct address_space_operations aspace_aops = {
.writepage = gfs2_aspace_writepage,
- .releasepage = gfs2_aspace_releasepage,
+ .releasepage = gfs2_releasepage,
};
/**
mapping_set_gfp_mask(aspace->i_mapping, GFP_KERNEL);
aspace->i_mapping->a_ops = &aspace_aops;
aspace->i_size = ~0ULL;
- set_v2ip(aspace, NULL);
+ aspace->u.generic_ip = NULL;
insert_inode_hash(aspace);
}
-
return aspace;
}
struct buffer_head *bh;
int retry;
+ BUG_ON(!spin_is_locked(&sdp->sd_log_lock));
+
do {
retry = 0;
gfs2_assert(sdp, bd->bd_ail == ai);
if (!buffer_busy(bh)) {
- if (!buffer_uptodate(bh))
+ if (!buffer_uptodate(bh)) {
+ gfs2_log_unlock(sdp);
gfs2_io_error_bh(sdp, bh);
+ gfs2_log_lock(sdp);
+ }
list_move(&bd->bd_ail_st_list,
&ai->ai_ail2_list);
continue;
gfs2_log_unlock(sdp);
gfs2_trans_end(sdp);
- gfs2_log_flush(sdp);
+ gfs2_log_flush(sdp, NULL);
}
/**
wait_on_buffer(bh);
if (!buffer_uptodate(bh)) {
- struct gfs2_trans *tr = get_transaction;
+ struct gfs2_trans *tr = current->journal_info;
if (tr && tr->tr_touched)
gfs2_io_error_bh(sdp, bh);
return -EIO;
* @meta: Flag to indicate whether its metadata or not
*/
-void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh, int meta)
+void gfs2_attach_bufdata(struct gfs2_glock *gl, struct buffer_head *bh,
+ int meta)
{
struct gfs2_bufdata *bd;
- lock_page(bh->b_page);
+ if (meta)
+ lock_page(bh->b_page);
- if (get_v2bd(bh)) {
- unlock_page(bh->b_page);
+ if (bh->b_private) {
+ if (meta)
+ unlock_page(bh->b_page);
return;
}
- bd = kmem_cache_alloc(gfs2_bufdata_cachep, GFP_KERNEL | __GFP_NOFAIL),
- atomic_inc(&gl->gl_sbd->sd_bufdata_count);
-
+ bd = kmem_cache_alloc(gfs2_bufdata_cachep, GFP_NOFS | __GFP_NOFAIL),
memset(bd, 0, sizeof(struct gfs2_bufdata));
-
bd->bd_bh = bh;
bd->bd_gl = gl;
INIT_LIST_HEAD(&bd->bd_list_tr);
- if (meta)
+ if (meta) {
lops_init_le(&bd->bd_le, &gfs2_buf_lops);
- else
+ } else {
lops_init_le(&bd->bd_le, &gfs2_databuf_lops);
+ get_bh(bh);
+ }
+ bh->b_private = bd;
- set_v2bd(bh, bd);
-
- unlock_page(bh->b_page);
+ if (meta)
+ unlock_page(bh->b_page);
}
/**
void gfs2_pin(struct gfs2_sbd *sdp, struct buffer_head *bh)
{
- struct gfs2_bufdata *bd = get_v2bd(bh);
+ struct gfs2_bufdata *bd = bh->b_private;
gfs2_assert_withdraw(sdp, test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags));
void gfs2_unpin(struct gfs2_sbd *sdp, struct buffer_head *bh,
struct gfs2_ail *ai)
{
- struct gfs2_bufdata *bd = get_v2bd(bh);
+ struct gfs2_bufdata *bd = bh->b_private;
gfs2_assert_withdraw(sdp, buffer_uptodate(bh));
void gfs2_meta_wipe(struct gfs2_inode *ip, uint64_t bstart, uint32_t blen)
{
- struct gfs2_sbd *sdp = ip->i_sbd;
+ struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct inode *aspace = ip->i_gl->gl_aspace;
struct buffer_head *bh;
while (blen) {
bh = getbuf(sdp, aspace, bstart, NO_CREATE);
if (bh) {
- struct gfs2_bufdata *bd = get_v2bd(bh);
+ struct gfs2_bufdata *bd = bh->b_private;
if (test_clear_buffer_pinned(bh)) {
+ struct gfs2_trans *tr = current->journal_info;
gfs2_log_lock(sdp);
list_del_init(&bd->bd_le.le_list);
gfs2_assert_warn(sdp, sdp->sd_log_num_buf);
sdp->sd_log_num_buf--;
gfs2_log_unlock(sdp);
- get_transaction->tr_num_buf_rm++;
+ tr->tr_num_buf_rm++;
brelse(bh);
}
if (bd) {
if (new)
meta_prep_new(bh);
else {
- error = gfs2_meta_reread(ip->i_sbd, bh,
+ error = gfs2_meta_reread(GFS2_SB(&ip->i_inode), bh,
DIO_START | DIO_WAIT);
if (error) {
brelse(bh);
}
if (new) {
- if (gfs2_assert_warn(ip->i_sbd, height)) {
+ if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), height)) {
brelse(bh);
return -EIO;
}
gfs2_metatype_set(bh, GFS2_METATYPE_IN, GFS2_FORMAT_IN);
gfs2_buffer_clear_tail(bh, sizeof(struct gfs2_meta_header));
- } else if (gfs2_metatype_check(ip->i_sbd, bh,
+ } else if (gfs2_metatype_check(GFS2_SB(&ip->i_inode), bh,
(height) ? GFS2_METATYPE_IN : GFS2_METATYPE_DI)) {
brelse(bh);
return -EIO;
struct gfs2_sbd *sdp = gl->gl_sbd;
struct inode *aspace = gl->gl_aspace;
struct buffer_head *first_bh, *bh;
- uint32_t max_ra = gfs2_tune_get(sdp, gt_max_readahead) >> sdp->sd_sb.sb_bsize_shift;
+ uint32_t max_ra = gfs2_tune_get(sdp, gt_max_readahead) >>
+ sdp->sd_sb.sb_bsize_shift;
int error;
if (!extlen || !max_ra)
void gfs2_meta_syncfs(struct gfs2_sbd *sdp)
{
- gfs2_log_flush(sdp);
+ gfs2_log_flush(sdp, NULL);
for (;;) {
gfs2_ail1_start(sdp, DIO_ALL);
if (gfs2_ail1_empty(sdp, DIO_ALL))
break;
- msleep(100);
+ msleep(10);
}
}