diff options
Diffstat (limited to 'fs/gfs2/ops_address.c')
-rw-r--r-- | fs/gfs2/ops_address.c | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c index ac772b6d9db..f55394e57cb 100644 --- a/fs/gfs2/ops_address.c +++ b/fs/gfs2/ops_address.c @@ -1,6 +1,6 @@ /* * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. - * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. + * Copyright (C) 2004-2008 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 @@ -21,7 +21,6 @@ #include <linux/gfs2_ondisk.h> #include <linux/lm_interface.h> #include <linux/backing-dev.h> -#include <linux/pagevec.h> #include "gfs2.h" #include "incore.h" @@ -104,11 +103,9 @@ static int gfs2_writepage_common(struct page *page, loff_t i_size = i_size_read(inode); pgoff_t end_index = i_size >> PAGE_CACHE_SHIFT; unsigned offset; - int ret = -EIO; if (gfs2_assert_withdraw(sdp, gfs2_glock_is_held_excl(ip->i_gl))) goto out; - ret = 0; if (current->journal_info) goto redirty; /* Is the page fully outside i_size? (truncate in progress) */ @@ -280,7 +277,7 @@ static int gfs2_write_jdata_pagevec(struct address_space *mapping, int i; int ret; - ret = gfs2_trans_begin(sdp, nrblocks, 0); + ret = gfs2_trans_begin(sdp, nrblocks, nrblocks); if (ret < 0) return ret; @@ -441,7 +438,7 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page) int error; /* - * Due to the order of unstuffing files and ->nopage(), we can be + * Due to the order of unstuffing files and ->fault(), we can be * asked for a zero page in the case of a stuffed file being extended, * so we need to supply one here. It doesn't happen often. */ @@ -510,23 +507,26 @@ static int __gfs2_readpage(void *file, struct page *page) static int gfs2_readpage(struct file *file, struct page *page) { struct gfs2_inode *ip = GFS2_I(page->mapping->host); - struct gfs2_holder gh; + struct gfs2_holder *gh; int error; - gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME|LM_FLAG_TRY_1CB, &gh); - error = gfs2_glock_nq_atime(&gh); - if (unlikely(error)) { + gh = gfs2_glock_is_locked_by_me(ip->i_gl); + if (!gh) { + gh = kmalloc(sizeof(struct gfs2_holder), GFP_NOFS); + if (!gh) + return -ENOBUFS; + gfs2_holder_init(ip->i_gl, LM_ST_SHARED, GL_ATIME, gh); unlock_page(page); - goto out; + error = gfs2_glock_nq_atime(gh); + if (likely(error != 0)) + goto out; + return AOP_TRUNCATED_PAGE; } error = __gfs2_readpage(file, page); - gfs2_glock_dq(&gh); + gfs2_glock_dq(gh); out: - gfs2_holder_uninit(&gh); - if (error == GLR_TRYFAILED) { - yield(); - return AOP_TRUNCATED_PAGE; - } + gfs2_holder_uninit(gh); + kfree(gh); return error; } @@ -648,15 +648,15 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping, if (alloc_required) { al = gfs2_alloc_get(ip); + if (!al) { + error = -ENOMEM; + goto out_unlock; + } - error = gfs2_quota_lock(ip, NO_QUOTA_CHANGE, NO_QUOTA_CHANGE); + error = gfs2_quota_lock_check(ip); if (error) goto out_alloc_put; - error = gfs2_quota_check(ip, ip->i_inode.i_uid, ip->i_inode.i_gid); - if (error) - goto out_qunlock; - al->al_requested = data_blocks + ind_blocks; error = gfs2_inplace_reserve(ip); if (error) @@ -828,7 +828,7 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping, unsigned int to = from + len; int ret; - BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == 0); + BUG_ON(gfs2_glock_is_locked_by_me(ip->i_gl) == NULL); ret = gfs2_meta_inode_buffer(ip, &dibh); if (unlikely(ret)) { |