From: Christoph Hellwig <hch@infradead.org>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 1/6] [XFS] Split inode data writeback from inode sync.
Date: Mon, 16 Mar 2009 06:10:08 -0400 [thread overview]
Message-ID: <20090316101008.GA2874@infradead.org> (raw)
In-Reply-To: <1237117603-26071-2-git-send-email-david@fromorbit.com>
> +static int
> +xfs_sync_inode_data(
> + struct xfs_inode *ip,
> + int flags)
> +{
> + struct inode *inode = VFS_I(ip);
> + int error = 0;
> +
> + if (VN_DIRTY(inode)) {
> + int locked = 0;
> + if (flags & SYNC_TRYLOCK) {
> + if (xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
> + locked = 1;
> + } else {
> + xfs_ilock(ip, XFS_IOLOCK_SHARED);
> + locked = 1;
> + }
> + if (locked) {
> + error = xfs_flush_pages(ip, 0, -1,
> + (flags & SYNC_WAIT) ? 0 : XFS_B_ASYNC,
> + FI_NONE);
> + xfs_iunlock(ip, XFS_IOLOCK_SHARED);
> + }
> + }
> +
> + if (flags & SYNC_IOWAIT)
> + xfs_ioend_wait(ip);
> +
> + return error;
> +}
In the end this should look more like:
static int
xfs_sync_inode_data(
struct xfs_inode *ip,
int flags)
{
struct inode *inode = VFS_I(ip);
struct address_space *mapping = inode->i_mapping;
int error = 0;
if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
if (!xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED)) {
if (flags & SYNC_TRYLOCK)
goto out;
xfs_ilock(ip, XFS_IOLOCK_SHARED);
}
if (flags & SYNC_WAIT) {
error = filemap_write_and_wait(mapping);
else
error = filemap_fdatawrite(mapping);
xfs_iflags_clear(ip, XFS_ITRUNCATED);
xfs_iunlock(ip, XFS_IOLOCK_SHARED);
}
out:
if (flags & SYNC_IOWAIT)
xfs_ioend_wait(ip);
return -error;
}
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next prev parent reply other threads:[~2009-03-16 10:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-15 11:46 [PATCH 0/6] [XFS] introduce a AG inode tree walker Dave Chinner
2009-03-15 11:46 ` [PATCH 1/6] [XFS] Split inode data writeback from inode sync Dave Chinner
2009-03-16 10:10 ` Christoph Hellwig [this message]
2009-03-16 10:47 ` Dave Chinner
2009-03-15 11:46 ` [PATCH 2/6] [XFS] Use xfs_inode_flush() in xfs_sync_inodes_ag() Dave Chinner
2009-03-15 11:46 ` [PATCH 3/6] [XFS] Factor out inode validation for sync Dave Chinner
2009-03-15 11:46 ` [PATCH 4/6] [XFS] Factor out inode validation for reclaim Dave Chinner
2009-03-15 11:46 ` [PATCH 5/6] [XFS] Remove unused parameter from xfs_reclaim_inodes Dave Chinner
2009-03-15 11:46 ` [PATCH 6/6] [XFS] introduce a per-ag inode iterator Dave Chinner
2009-03-16 7:53 ` [PATCH 0/6] [XFS] introduce a AG inode tree walker Christoph Hellwig
2009-03-16 9:40 ` Dave Chinner
2009-03-16 10:01 ` Christoph Hellwig
2009-03-16 10:35 ` Dave Chinner
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