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fsnotify: replace igrab() with ihold() on attach connector
We must have a reference on inode, so ihold is cheaper. Link: https://lore.kernel.org/r/20210810151220.285179-2-amir73il@gmail.com Reviewed-by: Matthew Bobrowski <repnop@google.com> Signed-off-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>
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1 changed files with 5 additions and 2 deletions
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@ -493,8 +493,11 @@ static int fsnotify_attach_connector_to_object(fsnotify_connp_t *connp,
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conn->fsid.val[0] = conn->fsid.val[1] = 0;
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conn->flags = 0;
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}
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if (conn->type == FSNOTIFY_OBJ_TYPE_INODE)
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inode = igrab(fsnotify_conn_inode(conn));
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if (conn->type == FSNOTIFY_OBJ_TYPE_INODE) {
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inode = fsnotify_conn_inode(conn);
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ihold(inode);
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}
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/*
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* cmpxchg() provides the barrier so that readers of *connp can see
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* only initialized structure
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