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authorChristoph Hellwig <hch@infradead.org>2007-07-17 04:04:32 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-17 10:23:06 -0700
commitfb66a1989c8abc3015aa334f617658b277e5fe98 (patch)
treee4216b8aa64bfb0376fa91f890fb03ae19803ac4 /fs/exportfs/expfs.c
parentd7dd618a5901ce0b44ef518208b35f728775db74 (diff)
downloadop-kernel-dev-fb66a1989c8abc3015aa334f617658b277e5fe98.zip
op-kernel-dev-fb66a1989c8abc3015aa334f617658b277e5fe98.tar.gz
knfsd: exportfs: move acceptable check into find_acceptable_alias
All callers of find_acceptable_alias check if the current dentry is acceptable before looking for other acceptable aliases using find_acceptable_alias. Move the check into find_acceptable_alias to make the code a little more dense and add a comment to find_acceptable_alias that documents its intent. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/exportfs/expfs.c')
-rw-r--r--fs/exportfs/expfs.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index abf0a31..085d6c5 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -37,6 +37,9 @@ static int exportfs_get_name(struct dentry *dir, char *name,
return get_name(dir, name, child);
}
+/*
+ * Check if the dentry or any of it's aliases is acceptable.
+ */
static struct dentry *
find_acceptable_alias(struct dentry *result,
int (*acceptable)(void *context, struct dentry *dentry),
@@ -44,6 +47,9 @@ find_acceptable_alias(struct dentry *result,
{
struct dentry *dentry, *toput = NULL;
+ if (acceptable(context, result))
+ return result;
+
spin_lock(&dcache_lock);
list_for_each_entry(dentry, &result->d_inode->i_dentry, d_alias) {
dget_locked(dentry);
@@ -126,9 +132,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent,
target_dir = dget(result);
} else {
- if (acceptable(context, result))
- return result;
-
alias = find_acceptable_alias(result, acceptable, context);
if (alias)
return alias;
@@ -289,9 +292,6 @@ find_exported_dentry(struct super_block *sb, void *obj, void *parent,
}
}
dput(target_dir);
- /* now result is properly connected, it is our best bet */
- if (acceptable(context, result))
- return result;
alias = find_acceptable_alias(result, acceptable, context);
if (alias)
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