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authorOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2006-01-08 01:02:14 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:47 -0800
commit28fd129827b00e12829d48a5290f46277600619b (patch)
tree38e50e1b88965fec41ea5b36aa557fb5c2b1ca73 /fs/jfs
parent05eb0b51fb46430050d5873458612f53e0234f2e (diff)
downloadop-kernel-dev-28fd129827b00e12829d48a5290f46277600619b.zip
op-kernel-dev-28fd129827b00e12829d48a5290f46277600619b.tar.gz
[PATCH] Fix and add EXPORT_SYMBOL(filemap_write_and_wait)
This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it. See mm/filemap.c: And changes the filemap_write_and_wait() and filemap_write_and_wait_range(). Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite() returns error. However, even if filemap_fdatawrite() returned an error, it may have submitted the partially data pages to the device. (e.g. in the case of -ENOSPC) <quotation> Andrew Morton writes, If filemap_fdatawrite() returns an error, this might be due to some I/O problem: dead disk, unplugged cable, etc. Given the generally crappy quality of the kernel's handling of such exceptions, there's a good chance that the filemap_fdatawait() will get stuck in D state forever. </quotation> So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO. Trond, could you please review the nfs part? Especially I'm not sure, nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not. Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/jfs')
-rw-r--r--fs/jfs/jfs_dmap.c3
-rw-r--r--fs/jfs/jfs_imap.c6
-rw-r--r--fs/jfs/jfs_txnmgr.c6
-rw-r--r--fs/jfs/jfs_umount.c6
-rw-r--r--fs/jfs/resize.c3
-rw-r--r--fs/jfs/super.c3
6 files changed, 9 insertions, 18 deletions
diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c
index 68000a5..2967b73 100644
--- a/fs/jfs/jfs_dmap.c
+++ b/fs/jfs/jfs_dmap.c
@@ -302,8 +302,7 @@ int dbSync(struct inode *ipbmap)
/*
* write out dirty pages of bmap
*/
- filemap_fdatawrite(ipbmap->i_mapping);
- filemap_fdatawait(ipbmap->i_mapping);
+ filemap_write_and_wait(ipbmap->i_mapping);
diWriteSpecial(ipbmap, 0);
diff --git a/fs/jfs/jfs_imap.c b/fs/jfs/jfs_imap.c
index 28201b1..31b4aa1 100644
--- a/fs/jfs/jfs_imap.c
+++ b/fs/jfs/jfs_imap.c
@@ -265,8 +265,7 @@ int diSync(struct inode *ipimap)
/*
* write out dirty pages of imap
*/
- filemap_fdatawrite(ipimap->i_mapping);
- filemap_fdatawait(ipimap->i_mapping);
+ filemap_write_and_wait(ipimap->i_mapping);
diWriteSpecial(ipimap, 0);
@@ -565,8 +564,7 @@ void diFreeSpecial(struct inode *ip)
jfs_err("diFreeSpecial called with NULL ip!");
return;
}
- filemap_fdatawrite(ip->i_mapping);
- filemap_fdatawait(ip->i_mapping);
+ filemap_write_and_wait(ip->i_mapping);
truncate_inode_pages(ip->i_mapping, 0);
iput(ip);
}
diff --git a/fs/jfs/jfs_txnmgr.c b/fs/jfs/jfs_txnmgr.c
index b660c93..2ddb6b8 100644
--- a/fs/jfs/jfs_txnmgr.c
+++ b/fs/jfs/jfs_txnmgr.c
@@ -1231,10 +1231,8 @@ int txCommit(tid_t tid, /* transaction identifier */
* when we don't need to worry about it at all.
*
* if ((!S_ISDIR(ip->i_mode))
- * && (tblk->flag & COMMIT_DELETE) == 0) {
- * filemap_fdatawrite(ip->i_mapping);
- * filemap_fdatawait(ip->i_mapping);
- * }
+ * && (tblk->flag & COMMIT_DELETE) == 0)
+ * filemap_write_and_wait(ip->i_mapping);
*/
/*
diff --git a/fs/jfs/jfs_umount.c b/fs/jfs/jfs_umount.c
index 5cf9178..21eaf7a 100644
--- a/fs/jfs/jfs_umount.c
+++ b/fs/jfs/jfs_umount.c
@@ -108,8 +108,7 @@ int jfs_umount(struct super_block *sb)
* Make sure all metadata makes it to disk before we mark
* the superblock as clean
*/
- filemap_fdatawrite(sbi->direct_inode->i_mapping);
- filemap_fdatawait(sbi->direct_inode->i_mapping);
+ filemap_write_and_wait(sbi->direct_inode->i_mapping);
/*
* ensure all file system file pages are propagated to their
@@ -161,8 +160,7 @@ int jfs_umount_rw(struct super_block *sb)
* mark the superblock clean before everything is flushed to
* disk.
*/
- filemap_fdatawrite(sbi->direct_inode->i_mapping);
- filemap_fdatawait(sbi->direct_inode->i_mapping);
+ filemap_write_and_wait(sbi->direct_inode->i_mapping);
updateSuper(sb, FM_CLEAN);
diff --git a/fs/jfs/resize.c b/fs/jfs/resize.c
index c6dc254..4518036 100644
--- a/fs/jfs/resize.c
+++ b/fs/jfs/resize.c
@@ -376,8 +376,7 @@ int jfs_extendfs(struct super_block *sb, s64 newLVSize, int newLogSize)
* by txCommit();
*/
filemap_fdatawait(ipbmap->i_mapping);
- filemap_fdatawrite(ipbmap->i_mapping);
- filemap_fdatawait(ipbmap->i_mapping);
+ filemap_write_and_wait(ipbmap->i_mapping);
diWriteSpecial(ipbmap, 0);
newPage = nPages; /* first new page number */
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 4226af3..8d31f13 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -502,8 +502,7 @@ out_no_rw:
jfs_err("jfs_umount failed with return code %d", rc);
}
out_mount_failed:
- filemap_fdatawrite(sbi->direct_inode->i_mapping);
- filemap_fdatawait(sbi->direct_inode->i_mapping);
+ filemap_write_and_wait(sbi->direct_inode->i_mapping);
truncate_inode_pages(sbi->direct_inode->i_mapping, 0);
make_bad_inode(sbi->direct_inode);
iput(sbi->direct_inode);
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