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| author | Christoph Hellwig <hch@infradead.org> | 2012-02-29 09:53:55 +0000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2012-03-13 17:18:14 -0500 |
| commit | 8f639ddea0c4978ae9b4e46ea041c9e5afe0ee8d (patch) | |
| tree | d2b90c868fd3ad818317e3fff8448d6940afb3d5 /fs/xfs/xfs_inode_item.h | |
| parent | f5d8d5c4bf29c9f7754d9cbe5e27c785106ba872 (diff) | |
| download | op-kernel-dev-8f639ddea0c4978ae9b4e46ea041c9e5afe0ee8d.zip op-kernel-dev-8f639ddea0c4978ae9b4e46ea041c9e5afe0ee8d.tar.gz | |
xfs: reimplement fdatasync support
Add an in-memory only flag to say we logged timestamps only, and use it to
check if fdatasync can optimize away the log force.
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_inode_item.h')
| -rw-r--r-- | fs/xfs/xfs_inode_item.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h index bc183d8..41d61c3 100644 --- a/fs/xfs/xfs_inode_item.h +++ b/fs/xfs/xfs_inode_item.h @@ -86,6 +86,15 @@ typedef struct xfs_inode_log_format_64 { #define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */ #define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */ + +/* + * The timestamps are dirty, but not necessarily anything else in the inode + * core. Unlike the other fields above this one must never make it to disk + * in the ilf_fields of the inode_log_format, but is purely store in-memory in + * ili_fields in the inode_log_item. + */ +#define XFS_ILOG_TIMESTAMP 0x4000 + #define XFS_ILOG_NONCORE (XFS_ILOG_DDATA | XFS_ILOG_DEXT | \ XFS_ILOG_DBROOT | XFS_ILOG_DEV | \ XFS_ILOG_UUID | XFS_ILOG_ADATA | \ @@ -101,7 +110,7 @@ typedef struct xfs_inode_log_format_64 { XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \ XFS_ILOG_DEV | XFS_ILOG_UUID | \ XFS_ILOG_ADATA | XFS_ILOG_AEXT | \ - XFS_ILOG_ABROOT) + XFS_ILOG_ABROOT | XFS_ILOG_TIMESTAMP) static inline int xfs_ilog_fbroot(int w) { |
