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| author | Christoph Hellwig <hch@lst.de> | 2017-11-03 10:34:45 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-11-06 11:53:40 -0800 |
| commit | 43518812d297179ae1e432d5cd640ec168596283 (patch) | |
| tree | 5d6165675f788d9a84a54f367fd36beb6f299d74 /fs/xfs/xfs_bmap_util.c | |
| parent | b121459c7a56d2fb5a8ca6727bf9f87982738b01 (diff) | |
| download | linux-stable-43518812d297179ae1e432d5cd640ec168596283.tar.gz linux-stable-43518812d297179ae1e432d5cd640ec168596283.tar.bz2 linux-stable-43518812d297179ae1e432d5cd640ec168596283.zip | |
xfs: remove support for inlining data/extents into the inode fork
Supporting a small bit of data inside the inode fork blows up the fork size
a lot, removing the 32 bytes of inline data halves the effective size of
the inode fork (and it still has a lot of unused padding left), and the
performance of a single kmalloc doesn't show up compared to the size to read
an inode or create one.
It also simplifies the fork management code a lot.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs/xfs/xfs_bmap_util.c')
| -rw-r--r-- | fs/xfs/xfs_bmap_util.c | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c index e748309e327d..6d37ab43195f 100644 --- a/fs/xfs/xfs_bmap_util.c +++ b/fs/xfs/xfs_bmap_util.c @@ -1709,7 +1709,6 @@ xfs_swap_extent_forks( xfs_filblks_t aforkblks = 0; xfs_filblks_t taforkblks = 0; xfs_extnum_t junk; - xfs_extnum_t nextents; uint64_t tmp; int error; @@ -1784,13 +1783,6 @@ xfs_swap_extent_forks( switch (ip->i_d.di_format) { case XFS_DINODE_FMT_EXTENTS: - /* - * If the extents fit in the inode, fix the pointer. Otherwise - * it's already NULL or pointing to the extent. - */ - nextents = xfs_iext_count(&ip->i_df); - if (nextents <= XFS_INLINE_EXTS) - ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext; (*src_log_flags) |= XFS_ILOG_DEXT; break; case XFS_DINODE_FMT_BTREE: @@ -1802,13 +1794,6 @@ xfs_swap_extent_forks( switch (tip->i_d.di_format) { case XFS_DINODE_FMT_EXTENTS: - /* - * If the extents fit in the inode, fix the pointer. Otherwise - * it's already NULL or pointing to the extent. - */ - nextents = xfs_iext_count(&tip->i_df); - if (nextents <= XFS_INLINE_EXTS) - tifp->if_u1.if_extents = tifp->if_u2.if_inline_ext; (*target_log_flags) |= XFS_ILOG_DEXT; break; case XFS_DINODE_FMT_BTREE: |