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fs: change d_delete semantics

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Change d_delete from a dentry deletion notification to a dentry caching
advise, more like ->drop_inode. Require it to be constant and idempotent,
and not take d_lock. This is how all existing filesystems use the callback
anyway.

This makes fine grained dentry locking of dput and dentry lru scanning
much simpler.

Signed-off-by: Nick Piggin <npiggin@kernel.dk>
This commit is contained in:
Nick Piggin 2011-01-07 17:49:23 +11:00
parent 5eef7fa905
commit fe15ce446b
22 changed files with 47 additions and 42 deletions
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2
net/sunrpc/rpc_pipe.c
View file

@ -430,7 +430,7 @@ void rpc_put_mount(void)
}
EXPORT_SYMBOL_GPL(rpc_put_mount);
static int rpc_delete_dentry(struct dentry *dentry)
static int rpc_delete_dentry(const struct dentry *dentry)
{
return 1;
}