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name cache: insert supports negative entries

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marked nfs41_name_cache_insert() parameters fh and info as OPTIONAL; passing NULL designates a negative lookup entry
name_cache_entry_create() no longer calls attr_cache_find_or_create(), and doesn't need the 'fileid' argument
name_cache_entry_update() also makes fh and info OPTIONAL, and handles the cases where we switch from a negative <-> positive entry, calling attr_cache_find_or_create() or attr_cache_entry_deref() as appropriate
removed unused function name_cache_find_or_create(); everything uses name_cache_entry_find_or_create() instead, so renamed that to name_cache_find_or_create()

Signed-off-by: Casey Bodley <cbodley@umich.edu>
This commit is contained in:
Casey Bodley 2010-10-11 16:04:54 -04:00
parent 112313bc45
commit 6bc86c1bff
2 changed files with 44 additions and 65 deletions
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4
daemon/name_cache.h
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@ -73,8 +73,8 @@ int nfs41_name_cache_insert(
IN struct nfs41_name_cache *cache,
IN const char *path,
IN const nfs41_component *name,
IN const nfs41_fh *fh,
IN const nfs41_file_info *info,
IN OPTIONAL const nfs41_fh *fh,
IN OPTIONAL const nfs41_file_info *info,
IN OPTIONAL const change_info4 *cinfo);
int nfs41_name_cache_remove(