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udf: cache struct udf_inode_info

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cache UDF_I(struct inode *) return values when there are
at least 2 uses in one function

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Marcin Slusarz
2008-02-08 04:20:44 -08:00
committed by Linus Torvalds
parent c0b344385f
commit 48d6d8ff7d
11 changed files with 338 additions and 290 deletions
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6
fs/udf/symlink.c
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@@ -79,10 +79,12 @@ static int udf_symlink_filler(struct file *file, struct page *page)
char *symlink;
int err = -EIO;
char *p = kmap(page);
struct udf_inode_info *iinfo;
lock_kernel();
if (UDF_I(inode)->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
symlink = UDF_I(inode)->i_ext.i_data + UDF_I(inode)->i_lenEAttr;
iinfo = UDF_I(inode);
if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
symlink = iinfo->i_ext.i_data + iinfo->i_lenEAttr;
} else {
bh = sb_bread(inode->i_sb, udf_block_map(inode, 0));