From 48d6d8ff7dca804536298e517298182c4a51c421 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Fri, 8 Feb 2008 04:20:44 -0800 Subject: udf: cache struct udf_inode_info cache UDF_I(struct inode *) return values when there are at least 2 uses in one function Signed-off-by: Marcin Slusarz Acked-by: Jan Kara Cc: Christoph Hellwig Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/udf/truncate.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) (limited to 'fs/udf/truncate.c') diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c index 8eb1d24ce5c..fe61be17cda 100644 --- a/fs/udf/truncate.c +++ b/fs/udf/truncate.c @@ -74,17 +74,18 @@ void udf_truncate_tail_extent(struct inode *inode) uint64_t lbcount = 0; int8_t etype = -1, netype; int adsize; + struct udf_inode_info *iinfo = UDF_I(inode); - if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB || - inode->i_size == UDF_I(inode)->i_lenExtents) + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB || + inode->i_size == iinfo->i_lenExtents) return; /* Are we going to delete the file anyway? */ if (inode->i_nlink == 0) return; - if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_SHORT) + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) adsize = sizeof(short_ad); - else if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_LONG) + else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG) adsize = sizeof(long_ad); else BUG(); @@ -117,7 +118,7 @@ void udf_truncate_tail_extent(struct inode *inode) } /* This inode entry is in-memory only and thus we don't have to mark * the inode dirty */ - UDF_I(inode)->i_lenExtents = inode->i_size; + iinfo->i_lenExtents = inode->i_size; brelse(epos.bh); } @@ -129,19 +130,20 @@ void udf_discard_prealloc(struct inode *inode) uint64_t lbcount = 0; int8_t etype = -1, netype; int adsize; + struct udf_inode_info *iinfo = UDF_I(inode); - if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB || - inode->i_size == UDF_I(inode)->i_lenExtents) + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB || + inode->i_size == iinfo->i_lenExtents) return; - if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_SHORT) + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) adsize = sizeof(short_ad); - else if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_LONG) + else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG) adsize = sizeof(long_ad); else adsize = 0; - epos.block = UDF_I(inode)->i_location; + epos.block = iinfo->i_location; /* Find the last extent in the file */ while ((netype = udf_next_aext(inode, &epos, &eloc, &elen, 1)) != -1) { @@ -153,7 +155,7 @@ void udf_discard_prealloc(struct inode *inode) lbcount -= elen; extent_trunc(inode, &epos, eloc, etype, elen, 0); if (!epos.bh) { - UDF_I(inode)->i_lenAlloc = + iinfo->i_lenAlloc = epos.offset - udf_file_entry_alloc_offset(inode); mark_inode_dirty(inode); @@ -174,7 +176,7 @@ void udf_discard_prealloc(struct inode *inode) } /* This inode entry is in-memory only and thus we don't have to mark * the inode dirty */ - UDF_I(inode)->i_lenExtents = lbcount; + iinfo->i_lenExtents = lbcount; brelse(epos.bh); } @@ -189,10 +191,11 @@ void udf_truncate_extents(struct inode *inode) sector_t first_block = inode->i_size >> sb->s_blocksize_bits, offset; loff_t byte_offset; int adsize; + struct udf_inode_info *iinfo = UDF_I(inode); - if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_SHORT) + if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) adsize = sizeof(short_ad); - else if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_LONG) + else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG) adsize = sizeof(long_ad); else BUG(); @@ -227,7 +230,7 @@ void udf_truncate_extents(struct inode *inode) 0, indirect_ext_len); } else { if (!epos.bh) { - UDF_I(inode)->i_lenAlloc = + iinfo->i_lenAlloc = lenalloc; mark_inode_dirty(inode); } else { @@ -275,7 +278,7 @@ void udf_truncate_extents(struct inode *inode) indirect_ext_len); } else { if (!epos.bh) { - UDF_I(inode)->i_lenAlloc = lenalloc; + iinfo->i_lenAlloc = lenalloc; mark_inode_dirty(inode); } else { struct allocExtDesc *aed = @@ -325,7 +328,7 @@ void udf_truncate_extents(struct inode *inode) (sb->s_blocksize - 1)) != 0)); } } - UDF_I(inode)->i_lenExtents = inode->i_size; + iinfo->i_lenExtents = inode->i_size; brelse(epos.bh); } -- cgit v1.2.3